Lfm3250 927 0251 Onan CCKB (20HP Tractor) Engine Major Service Manual & Parts W 1116 Supl (06 1974)

User Manual: 927-0251 Onan CCKB (20HP Tractor) Engine Major Service manual & Parts w-927-1116 supl (06-1974)

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MAdOR SERVICE MANUAL

AND PARTS CATALOG

?FOR

,PRO?E’I?TY .

f?~

DO NOT R~MfJIYE

ONAN

20 HP CCKB ENGINE

FOR

GARDEN TRACTOR

SERVICE

,.

)’

.

?

...

,, ,

.% J

●

BASIC MODELS

CCKB-MS/24201+

CCKB-MS/2440H

CCKB=MS/2733J

.,.

FORM NUMBER ISSUE OATE

927–0251 6HJ74

SAFETY PRECAUTIONS

The following symbols in this manual signal @pote-

ntiallydangerous conditions to the operator or equip-

ment. Read this manual carefully. Know when these

conditions can exist. Then, take necessary steps to

protect personnel as well as equipment.

Onan uses this symbol

throughout this manual to

warn of possible serious personal injury.

IEQiimThis symbol refers to possible

equipment damage.

Fuels, electrical equipment, batteries, exhaust gases

and moving parts present potential hazards that could’

result in serious, personal injury. Take care in follow-

ing these recommended procedures.

●Use Extreme Caution Near Gasoline, Gaseous

Fuel And Diesel Fuel. Aconstant potential ex-

plosive or fire hazard exists.

Do not fill fuel tank near unit with engine running.

Do not smoke or use open flame near the unit or

the fuel tank.

Be sure all fuel supplies have apositive shutoff

valve.

Fuel lines must be of steel piping, adequately

secured and free from leaks. Do not use copper

piping on flexible lines as copper becomes

hardened and brittle. Use black pipe on natural

gas or gaseous fuels, not on gasoline or diesel

fuels. Piping at the engine should be approved

flexible line.

Have afire extinguisher nearby. 6e sure ex-

tinguisher is properly maintained and be familiar

with its proper use. Extinguishers rated ABC by

the NFPA are appropriate for all applications.

Consult the local fire department for the correct

type of extinguisher for various applications.

sGuard Against Electric Shock

Remove electric power before removing protec-

tive shields or touching electrical equipment. Use

rubber insulative mats placed on dry wood plat-

forms over floors that are metal or concrete when

around electrical equipment. Do not wear damp

clothing (particularly wet shoes) or allow skin

surfaces to be damp when handling electrical

equipment.

Jewelry is agood conductor of electricity and

should- be removed when working on electrical

equipment.

●



●

●

●

Always use an appropriately sized, approved

double-throw transfer switch with any standby

generator set. DO NOT PLUG PORTABLE OR

STANDBY SETS DIRECTLY INTO AHOUSE ‘

RECEPTACLE TO PROVIDE EMERGENCY

POWER. It is possible for current to flow from

generator into the utility line. This creates ex-

treme hazards to anyone working on lines to

restore power.

Use extreme caution when working on electrical

components. High voltages cause injury or death.

Follow all state and local electrical codes. Have all

electrical installations performed by aqualified

licensed electrician.

Do Not Smoke While Sewicing Batteries

Lead acid batteries emit ahighly explosive

hydrogen gas that can be ignited by electrical

arcing or by smoking.

Exhaust Gases Are Toxic

c

,

Provide an adequate exhaust system to properly

“

expel discharged gases. Check exhaust system

regularly for leaks. Ensure that exhaust manifolds

are secure and not warped.

Be sure the unit is well ventilated.

Keep The Unit”And Surrounding Area Clean.

Remove all oil deposits. Remove all unnecessary

grease and oil from the unit. Accumulated grease

and oil can cause overheating and subsequent

engine damage and may present apotential fire

hazard.

Dispose of oily rags. Keep the floor clean and dry.

Protect Against Moving Parts.

Avoid moving parts of the unit. Loose jackets,

shirts or sleeves should not be permitted because

of the danger of becoming caught in moving

parts.

Make sure all nuts and bolts are secure. Keep

power shields and guards in position.

If adjustments must be made whiie the unit is

running, use extreme caution around hot i

manifolds, moving parts, etc.

\.

Do not work on this equipment when mentally or

physically fatigued.

These parts apply to the ONAN engines used in Garden Tractor service and will

give better service than those previously listed. Use these parts in place of

those listed in the main parts catalogs 927-02S1 and 927-1103.

.,.

Parts are not illustrated as they are similar in’”appearanceto those in the

parts catalog. .....

CYLINDER BLOCK GROUP

REF. NO. PART NO. QTY. USED PART DESCRIPTION

15 BEARING, CRANKSHAFT

101-0450 2*Standard

101-0450-02 2 .002” Undersize

101-0450-10 2 .010” Undersize

101-0450-20 2.020” Undersize

101-0450-30 2 .030” Undersize

*- These standard

listed in main

bearings included in replacement cylinder block assembly

parts catalog.

CRANKSHAFT, FLYWHEEL, CAMSHAFT & PISTON GROUP

REF. NO. PART NO. QTY. USED PART DESCRIPTION

11 PISTON AND PIN (Includes Retaining Rings)

112-0136 2Standard

112-0136-05 2.005” Oversize

112-0136-10 2.010” Oversize

112-0136-20 2 .020” Oversize

112-0136-30 2.030” Oversize

112-0136-40 2.040” Oversize

ONAN INDUSTRIAL ENGINES

.,.“.”’

,, \FOR TRACTOR APPLICA’I’ION

.

.,

---

CCKB

SERIES

●

TABLE OF CONTENTS

TITLE

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifieatians . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dimensions and ClearcrneeS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Assembly Torques ........................................

Engine Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Oil System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fuel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Governor System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..+.....*

ignition and Battery Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Starting System . . ..o ............................00 ..o””o

Engine Disassembly . . . . . . . . . . . . . . . . . . . . . . ...0 . . . . . . . . . . . . .

Parts Catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...000

EngineWiringDiagram-CCKB-MS/z420 . . . . . . . . . . . . . . . . . . . . . . . ..*.o

EngineWiringDiagram-CCKB-MS/2440 . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PAGE

2

3

4

4

5

6

8

11

:;

22

32

48

49

WE SUGGEST THAT THIS BOOK BE KEPT HANDY,

EITHER FOR MAKING ADJUSTMENTS OR ORDERING

PARTS.

-—

GENERAL INFORMATION

SERVICE MANUAL MODEL DESIGNATION

This Onan service manual contains information for Identify your model by referring to the MODEL and

proper servicing and overhauling CCKB engines begin SPEC (specification) NO. as shown on the unit name-

Spec H. Onan recommends reading the entire manual to plate. Always use this number and the engine serial

better understand the CCKB engine before performing number when making reference to your engine.

any work on the unit. The information will enable you to

maintain and service the engine which can not only

result in better operation, but long unit life as well.

Because correct diagnosis is an utmost part of repair,

atroubleshooting chart is included.

NOTE: Flywheel end of engine is considered the front.

Left and right sides are determined looking at front of

engine.

This symbol is used to warn of ~;

possible equipment damage.

uses this symbol

throughout the text to warn of ~:

possible injury or death.

How to interpret MODEL and SPEC NO.

CCKB -MS /2420 J

TTTT

12.34

Factory code for general identification purposes.

Specific Type:

S-MANUAL STARTING

MS -ELECTRIC STARTING

Factory cede for optional equipment supplied.

Specification (Spec Letter) advances with factory

production mod ificat ion.

When contacting the factory about the engine always

supply the complete model number and serial number If your engine needs service or repair, contact an Onan

as shown on the nameplate (see “MODEL DE SIGNA- Service Center. Trained mechanics will assure expert

TION” following). repair service on your Onan engine.

@El

TO AVOID POSSIBLE PERSONAL INJURY OR

EQUIPMENT DAMA GE, AN AUTHORIZED SER-

VICE REPRESENTATIVE MUST PERFORM ALL

SERVICE.

2

,,’ -, SPECIFICATIONS

Engine Manufacturer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Onan

Engine Ensign . . . . . . . . . . . . . . . . . . . . . . Opposed two cylinder, four cycle, Lhead and air cooled

Horsepower . . . . . . . . . . . . . . . . . . . . . . . . . . 19-1/2 hp @3600 rpm 20 hp max. @3900rpm

Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49.8 cu. in.

Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1/4 inch

Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3inch

Crankshaft ................................. . . . .. Horizont=d.Ductilelmrr

Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bearings(MainandRod) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lubrication System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Oil Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(With Filter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BatteryChargingSystem . . . . . . . . . . . . . . . . . . . . . . . . . . 12Volt,15Amp,

or 12Volt,20Amp,

Mechanical

.Sleeve

Pressure Feed

.3-1/2 Quarts

.4Quarts

Flywheel Alternator

Flywheel Alternator

TUNE-UP SPECIFICATIONS

MINIMUM

MAXIMUM

Valve Tappet Adjustment

Intake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .006 .008

Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .015 .017

Breaker Point Gap (Full Separation) . . . . . . . . . . . . . . . . . . . . . . . . . . .020

Spark Plug Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .025

Ignition Timing Advance (Engine Running) . . . . . . . . . . . . . . . . . . . . . . . 20° BTC

.

DIMENSIONS AND CLEARANCES

All cIearances given at room temperature of 70° F.

All dimensions in inches unless otherwise specified.

Minimum Maximum

Valve Stem in Guide –Intake. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Valve Stemin Guide –Exhaust. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Valve Seat Interference Width... . . . . . . . . . . . . . . . . . . . . . . . . . . .

Valve Face Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Valve Seat Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Crankshaft Main Bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Crankshaft End Play . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Camshaft Bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Camshaft End Play . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Rod Bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connecting Rod End Play . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Timing Gear Backlash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1.

Oil Pump Gear Backlash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Piston to Cylinder, Conformat ic Type (Measured below oil-cent rolling

ring -90 °frompin) Clearance.. ..........................

Piston Pin in Piston . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Piston Pin in Rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Piston Ring Gap in Cylinder.. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Crankshaft Main Bearing Journal –Standard Size . . . . . . . . . . . . . . . . . . .

Crankshaft Rod Bearing Journal –Standard Size . . . . . . . . . . . . . . . . . . . .

Cylinder Bore -Standard Size. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0.0010

0.0025

1/32

440

450

0.0025

0.006

0.0015

0.003

0.0005

0.002

0.002

0.002

0.0025

0.0040

3/64

0.0038

0.012

0.0030

0.0023

0.016

0.003

0.005

0.0025 0.0045

Thumb Push Fit

0.0001 0.0006

0.010 0.023

1.9992 2.0000

1.6252 1.6260

3.249 3.250

ASSEMBLY TORQUES

ASSEMBLY TORQUES

Assembly torques as given here require the use of a

torque wrench. These assembly torques will assure

proper tightness without danger of stripping the threads.

If atorque wrench is not available, you will have to

estimate the degree of tightness necessary for the stud,

nut or screw being installed and tighten accordingly.

Be careful not to strip the threads. Check all studs,

nuts and screws often. Tighten as needed to prevent

them from working loose.

TORQUE SPECIFICATIONS Ft. -Lb.

Connecting Rod Bolt . . . . . . . . . . . . . . . . . 27-29

Oil Pump . . . . . . . . . . . . . . . . ........ 7-9

Oil Base Mounting Screws . . . . . . . . . . . . . 43.48

Rear Bearing Plate Screws . . . . . . . . . . . . . 2(I .25

Gear Case Cover . . . . . . . . . . . . . . . . . . . 10-13

Starter Mounting Bracket to

Oil Base Screws . . . . . . . . . . . . . . . . . . 43.48

Other 5/16 “Cylinder Block Nuts . . . . . . . . 10-12

hlagneto Stator Screws ................ 15-20

Rotor to Flywheel Screws ............. 5

Flywheel Capscrew . . . . . . . . . . . . . . . . . 35-40

Cylinder Dead bolts . . . . . . . . . . . . . . . . . 29-31

Spark Plugs . . . . . . . . . . . . . . . . . . . . . . . 20-25

Valve Cover Capscrews . . . . . . . . . . . . . . . 4.8

Manifold Screws .................... 15-20

‘.

Fuel Pump Mounting sCrews . . . . . . . . . . . . 5- 6

Carburetor Mounting Stud Nuts . . . . . . . . . , . 8-12

...

,.

r. ENGINE TROUBLESHOOTING

.

‘,..

.

GASOLINE ENGINE

TROUBLESHOOTING

GUIDE

1~1 10 III1].[ Ir] Ie 1.1 I I I1IIRich Fuel Mixture or Choke Stuck

10 II1I I I I IOlolol

g

ILeak)ng

ton

rd”,,~ ,,Ierr,, ”,ca,

lii!!iii!ill!!-ll!!if~~~

wworn water PumD or Pump Seal

●Water Passages Restricted

●m–. –. 7––.

WC ICL L?.= VI! u’lugc

Rellef Valve Stuck

Faulty Oil Pump

Oirty Oil or Filter

011 Too Light or Diluted

Oi ILevel Low

Oil Too Heavy

O!ls SYSTEM

EisEil Never remove oil level indicator cap

with the engirre rurrning, because hot

oil will blow out of the tube causing possible injury.

CRANKCASE OIL

Change crankcase oil every .s0 operating hours and

only when engine is warm. (Exception: Drain initial

oil fill at 25 operating hours.)

When changing oil, fill the crankcase to the FULL

mark (Figure 1) with agood quality (API) SE oil (gaso-

line operation only) of the viaccsity specified on the

nameplate. If SE oil is not available, SD or SD/CC

oil may be used.

When add ing oil between changes,

to the oil in the crankcase in API

viscosity and brand.

For temperatures above 30”F, use

temperatures below 30° F, use 5W30.

use oil identical

designation, SAE

SAE 30 oil; for

In extremely dusty conditions or in very cold weather,

change oil at least every 25 hours of operation.

T

-KEEP CRANKCASE

OIL AT THIS FULL

LEVEL

NEVER OPERATE

ENGINE WITH --- LOW

OIL SELOW THIS

LEVEL. ALWAYS REPLACE CAP

TIGHTLY OR OIL LEAK-

AGE MAY OCCU@ AT

OIL SEALS.

FIGURE 1. OIL LEVEL INDICATOR

OIL FILTER

Change the crankcase oil filter every 100 hours. Re-

move the filter by turning counterclockwise, using a

filter wrench. Coat the rubber gasket on the base of

filter iightly with oil. Add the rubber strip provided

with the filter to prevent air loss in the area indicated

(Figure 2). It is advisable to wipe dry the drip pan

located below the filter. Install the filter finger-tight

plus 1/4 to 1/2 turn.

CRANKCASE BREATHER

The engine is equipped with an insulated ball check

valve for maintaining crankcase vacuum. Inspect every

200 hours. NO maintenance is generally required. Should

the crankcase become pressurized, “as evidenced by

oil leaks at the seals or around the cap of the oil level

indicator, disassemble and clean as follows:

FIGURE 2. ENGINE OIL FILTER

Emzi Do not overfill crankcase. Do not use

service DS oil. Do not mix brands

nor grades of motor oil.

Remove hose clamp, breather hose, breather cap clamp

and insulator halves to release breather cap and valve

assembly. Wash cap and valve assembly and the baffle

in asuitable solvent and reinstall. See Figure 3.

CRANKCASEEREATtlER

waREATH

CAP AND VALVE -A

““O”’RING

!

SCREEN

BREATHERTUBE —1

—cLAMP

BAFFLE

FIGURE 3. CRANKCASE BREATHER

6

OIL PUMP

To remove the oil pump, it is necessary to detach the

intake cup assembly, as illustrated in Figure 4.

Check the oil pump thoroughly for worn parts. Oil the

pump to prime it before reinstalling. Except for gaskets

and suction cup, the component parts of the pump are

not available individually. Install anew pump assembly

if required.

If new oil pump gaskets are installed, they should be

the same thickness as those removed. Agasket kit with

.various thickness gaskets is available.

------- . . . .

CRANKCASE TURNED~

ON LEFT SIDE -

.\

FIGURE 4. OIL pUMp ASSEMBLY

FUEL5iW’$i$TEM

CARBURETOR (Figure 5)

The carburetor has an idle fuel adjustment (A), amain

fuel adjustment (B), and alow speed stop adjustment

(C). The idle fuel adjustment affects engine operation

at low speed or idle position. The main fuel adjustment

affects operation under load (high speed). Under normal

circumstances, factory carburetor adjustments should

not be disturbed. If either Aor Bhas been disturbed

turn needles (counterclockwise) off their seats 1to

1-1/2 turns to permit initial starting.

Carburetor Idle Fuel Adjustment:

1. Run the engine at least 10 minutes to warm it up.

2. Move speed control on tractor to slow position so

engine is running at approximately 1200 rpm.

3. Turn idle needle (A) out (counterclockwise) until

engine begins to slow down or run unevenly (rich

mixture). Remember this position.

4. Turn idle needle back in (clockwise) past the posi-

tion where the engine runs smoothly until it begins

to slow down or run unevenly (lean mixture).

m

Do not force the needle against

its seat; doing so will damage it.

5. Back the needle out to aposition approximately

halfwa~ between the two positions. This should

provide asmooth running idle.

Yo

B

A914

Rev. MAIN FUEL

ADuJUSTMEIUT

Carburetor Main (Load) Fuel Adjustment: If engine runs

unevenly with aload applied, the main adjusting needle

may need adjustment.

1.

2.

3.

4.

5.

Start engine and allow it to warm up.

Set idle adjustment so engine runs smoothly. (See

Carburetor Idle Fuel Adjustment).

Push in on governor mechanism to slow engine

speed to about 400 to 500 rpm.

Release governor mechanism to aHow engine to

accelerate. If engine accelerates evenly wit bout

hes itat ion, main adjustment is correct. If not, turn

needle (B) outward about 1/2 turn and again re-

lease governor mechanism. Continue this procedure

until engine accelerates evenly and without hesi-

tation after releasing the governor.

If engine tends to hunt (alternate increase and

decrease of speed),

needle alittle more.

turn beyond maximum

open main fuel adjusting

Do not open more than 1/2

power point.

CARBURETOR DISASSEMBLY

1. Remove the main jet assembly and bowl.

2. Remove the float pin and float. See Figure 6.

3. Lift out the fuel inlet valve and unscrew the valve

seat.

4. Remove the no-load adjusting needle.

5. Remove the throttle plate screws and the plate

and pull out the throttle shaft.

6. Remove the choke plate screws and plate and pull

out the choke shaft.

i&#-– FUEL INLET

‘~c:~;EToR

FIGURE 5. CARBURETOR ADJUSTMENTS FIGURE 6. FLOAT ASSEMBLY

4’:

,-“.

Cleaning and Repair: To clean the carburetor, soak all

components thoroughly in agood carburetor cleaner

following the cleaner manufact urer’s instruct ions. Be

sure all carbon is cleaned from the carburetor bore,

especially in the area of the throttle valve. Blow out

the passages with compressed air. If possible, avoid

using wire to clean out the passages.

Check the adjusting needles and nozzle for damage.

If the float is loaded with fuel or damaged, replace it.

The float should fit freely on its pin without binding.

Invert the carburetor body and measure the float level

(Figure 7). If necessary, bend the small lip that the

intake valve rides on to adjust float level.

Check the choke and throttle shafts for excessive side

play and replace if necessary.

BEND TAB

THIS DIMENSION

SHOULD BE

)- I

1/8’’ -3/16”

A913

FIGURE 7. FLOAT ADJUSTMENT

CARBURETOR ASSEMBLY

1. Install the throttle shaft and plate, using new

2.

3.

4.

5.

6.

7.

screws and lockwashers. Install with bevel mated

to the carburetor body. On plates marked with the

letter C, install with the mark on the side toward

the idle port when viewed from the flange end of

the carburetor. To center the plate, back off the

top screw, close the throttle lever and seat the

plate by tapping it with asmall screwdriver. Then

tighten the two screws.

Install the choke shaft and plate. Center the plate

in the same manner as the throttle plate (step 1).

Use new screws and lockwashers.

Install the fuel inlet valve seat and valve.

Install the float, float pin and float spring. Center

the pin so the float bowl does not ride against it.

Check the float level with the carburetor casting

inverted. See Figure 7.

Install the bowl ring gasket, bowl and bowl nut.

Make sure that the bowl is centered in the gasket

the float spring is in place and tighten the main

jet assembly securely. Turn in until it seats and

back out 1to 1-1/2 turns.

Install the idle adjusting screw finger tight. Then

back out 1to 1-1/2 turns.

FUEL PUMP

The engine uses adiaphragm-type fuel pump. If

fuel

does not reach the carburetor, check the fuel

pump

before dismantling it.

1.

2.

3.

Disconnect the fuel line at the carburetor.

Crank the engine slowly by hand and observe

whether fuel comes from the line at the carburetor.

EEiiia Be sure to direct the fuel flow

rnto acontainer so gas does

not

spill on ignition wires.

If there is enough fuel in the tank, and the line

between the tan~ and the pump is open but the

pump fails, repair or replace it.

Failure of the pump is usually due to aleaking

dia-

phragm, valve or valve gasket, aweak or broken spring,

or wear in the drive linkage. If the operator chooses

to

repair the pump rather than install anew one, use

complete repair kit. Refer to Parts Catalog.

Fuel Pump Reconditioning:

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

Remove fuel lines and mounting screws holding

pump to engine.

Make an indicating mark with afile across apoint

at the union of the fuel pump bolt and cover. This

mark will assure proper reassembly.

Remove

assembly screws and remove upper pump body.

Turn pump body over and remove valve plate screw

and washer. Remove valve retainer, valves, valve

springs and valve gasket, noting their position.

Discard valve springs, valves and valve retainer

gasket.

Clean pump body thoroughly with solvent and

a

fine wire brush.

Holding the pump cover with the diaphragm sur-

face up, place the new valve gasket into the

cavity. Assemble the valve spring and valves

in

the cavity. Reassemble the valve retainer. Lock

in position by inserting and tightening fuel

pump

valve retainer screw.

Place pump body assembly in aclean place

and

rebuild the lower diaphragm section.

Holding mounting bracket, press down on the dia-

phragm to compress spring under it, then

turn

bracket 900 to unhook diaphragm so it can

be

removed.

Clean mounting bracket with asolvent and afine

wire brush.

Replace the diaphragm fuel pump rod spring, dia-

phragm gasket, stand new spring in casting, posi-

tion diaphragm, compress spring and turn 90°

to

reconnect diaphragm.

Hold bracket, then place the pump cover on

i

(make sure that indicating marks are in line)

and

insert the four screws. DO NOT TIGHTEN.

With

the hand on the mounting bracket only, push

the

pump lever to the limit of its travel and hold

in

this position while tightening the four screws.

This is important to prevent stretching the

dia-

phragm.

Mount the fuel pump on engine, using new mounting

gaskets. Connect ~he fuer lines.

AIR CLEANER

EE!KI NEVER run engine with air cleaner

removed. Dirt will enter carburetor

and score the cylinders.

To gain access to air cleaner element, loosen thumb

screw and pull out air cleaner inlet cover.

Under normal conditions clean filter element every

50 hours by blowing out with low pressure compressed

air. Replace element every 200 hours. Check or re-

place more often if tractor is operating in dusty or

dirty conditions.

FILTER

ELEMENT

\LOOSEN THUMB SCREW

—TO REMOVE

w,V* I

10

-

;

‘“

J:,

‘t<

FIGURE 8. AIR CLEANER

,.”

,, GOVEW+!X!2RSYSTEM

\.

ADJUSTMENTS (Figure 9) 1.

If governor requires readjustment, observe the foHow-

ing:

Low Speed Adjustment: Atachometer (electric or mech- 2.

anical) is required to accurately set the governor

speed. 3.

Use a screwdriver to adjust low speed stop screw

(Figure 9) so engine runs at 1200 (t 100)rpm when

throttle is held closed.

Readjust carburetor idle mixture so engine runs

smoothly.

Check adjustment made in step 1and readjust

minimum idle speed if necessary.

THESE TWO SURFACES SHOULD

TOUCH WHEN THROTTLE IS IN

FULL SPEED POSITION A

IzEE3 l\

C&wL~v ::1 P

uSE 90° PLIERS TO AVOID @.SWIVEL PLATE

.

FIGURE

9.

GOVERNOR ADJUSTMENTS

High Speed and Cable Adjustment:

1.

2.

3.

Move engine speed control on tractor to “fast”

position.

With speed control in “fast” position, the speed

control cable should be holding governor swivel

plate against stop on governor base plate

(Figure 9).

If speed adjustment is necessary, remove cable

clip and loosen swivel screw. Hold end of cable

housing 1/8 inch from base plate mounting edge

and using a900 pliers reinstall cable clip.

EEEcI Bending the base plate will cause

misalignment between swivel plate and

the edge of base plate.

4.

5.

6.

7.

Back off from “fast” posit ion on throttle cent rol

arm until inner cable moves forward about 1/16

inch.

Hold the swivel plate against the stop edge and

tighten the swivel screw. Recheck to see if con-

trol pulls swivel plate against the base plate.

With engine running, loosen stud adjusting nuts

and turn toward spring (left) to increase or away

from spring (right) to decrease the high speed.

Tighten nuts and check speed.

Top speed at no load should be 3850 (f 100) rpm.

CLEANING

Inspect the governor linkage, springs, etc. for binding

or wear. Clean otlen in dusty conditions.

1“

\

Ka’w’mml Ar’+m BATTERY CHARGING

BREAKER POINTS

To maintain maximum efficiency from the engine,

change the breaker points every 200 hours of operation.

Proceed as follows:

1,

2

3.

4.

5.

6.

7.

Remove the two screws and the cover on the

breaker box.

Remove the two spark plugs so engine can be

easily rotated by hand. If plugs have not been

changed within the last 100 hours, replace them

with new ones after setting the breaker points.

Remove the two mounting screws (A) and pull the

points out of the box- just far enough so screw (B)

can be removed. See Figure 10. Replace points

with anew set but do not completely tighten

mounting screws (A).

Remove and replace condenser with anew one.

Rotate the engine clockwise (facing flywheel) by

hand until points are fully open. Turn screw (C)

until point gap measures .020 inch with aflat

thickness gauge.

Tighten mounting screws and recheck gap.

Proceed to Ignition Timing.

NOT E: Each time rrew breaker points are installed,

place a drop of oil on the point’s pivot point

(Figure 10).

PLACE DROP OF OIL ON PIVOT POINT

WHENEVER NEW POINTS ARE

INSTALLED.

REFER s

APPROXIMATE TIMING TO ADVANCE OR RE;ARD~

I

FIGURE 10. BREAKER POINTS

&TIMING ADJUSTMENT

IGNITION TIMING

Ignition Timing –Engine Running

4

Always check timing after replacing ignition points

or if noticing poor engine performance. Proceed as

follows:

1. To accurately check the ignition timing, use a

timing light when engine is running. Connect the

timing light according to its manufacturer’s in-

structions. Either spark plug can be used as they

fire simultaneously.

2.

3.

4.

5.

6.

Clean off the timing mark on the timing bracket

(located on rear bearing plate) and also clean the

200 mark on the front clutch. (For safety turn off

front clutch and if possible remove belt from front

clutch pulley. )

Start engine and check for alignment of these two

marks.

If misaligned, loosen the mounting screws on

breaker box (Figure 10) and move breaker box left

to advance, or to the right to retard the timing,

Tighten breaker box screws and recheck timing.

Replace breaker box cover and any other hardware

removed.

Ignition Timing -Engine Not Running

1.

2.

3.

4.

5.

Connect acontinuitytest lamp set across the igni-

tion breaker points. Touch one test prod to the

breaker box terminal to which the coil lead is

connected and touch the other test prod to agood

ground on the engine.

Turn crankshaft against rotation (counterclock-

wise) until the points close. Then slowly turn the

crankshaft with rotation (clockwise).

As the points begin to open the light will flicker

or go out. At this time the ‘timing marks should be

aligned. If not, adjustment is necessary.

Align timing marks and loosen breaker box screws

(Figure 10). Move breaker box to the left (advance)

or to the right (retard) until the light flickers.

Tighten the breaker box screws and recheck timingl

SPARK PLUGS

Remove both spark plugs and install new ones every

100 hours. Use Champion H-8 or equivalent. Check to

be sure spark plug gap is set at .025 “.

SPARK

0.025’” PLUG GAP

GASOLINE

FIGURE I1. SPARK “PLUG GAP

13

IGNITION COIL

To test primary and secondary windings within the

ignition coil .proceed as follows:

1.

2.

3.

4.

Use aSimpson 260 VOM or equivalent.

Place back lead on ground (-) terminal of coil and

red lead to positive (+) terminal. Primary resis-

tance should read 3.87 -4.73-ohms.

Change resistance setting on ohmmeter. Place

ohmmeter leads inside “of spark plug cable holes

(Figure 12). Secondary resistance should read

12,600- 15,400-ohms.

If any of the above conditions are not met, replace

coil. Refer to Parts Catalog for correct part number.

=&round

This engine uses a 12 volt, negative

system. Alternator must be

connected to battery at all times when engine is run-

ning. Do not reverse battery cables. Damageto regulator

Keep the battery case clean and dry. An accumulation

of moisture will lead to amore- rapid discharge and

battery failure.

Keep the battery terminals clean and tight. After mak-

ing connections, coat the terminals with alight appli-

cation of petroleum jelly or grease to retard corrosion.

Check battery cells to make sure they are filled to

appropriate level adding distilled water as required.

Check specific gravity in each cell. Specific gravity

shald be 1,280 at 80° F; if not, recharge battery to

bring it up to this level.

or [gnition coil could result if cables are reversed.

NOT E: Poor contact at the battery cable connections

is often a source ot’ trouble. Make sure battery <ables

are in good condition and that contacting surfaces

are clean and tightly connected. Do not reverse battery

leads. Use recommended battery tools when disconne<t-

in,g leads to avoid mechanical battery damage.

FIGURE 12. IGNITION COIL TESTING

BATTERY INSPECTION

Check battery cells with ahydrometer, The specific

gravity reading should be approximately 1.280 at 80 CF.

If one or more cells are low on water, add distilled

water and recharge.

““”~”’

%2

. .,

. . SPECIFIC

GRAVITY READING

r--

SHOULD BE

1.280 AT 80” F.

&

...,.-i.:~

FIGURE 13. SPECIFIC GRAVITY TEST

FLYWHEEL ALTERNATORS

The alternator is apermanent magnet flywheel alterna-

tor with asolid-state voltage regulator-rectifier for

controlling output. If ignition spark is weak or if the

battery discharges inspect the following:

Inspection:

1.

2.

3.

Make sure the alternator stator leads are not

shorted together.

Check mounting of regulator-rectifier case to unit.

It should provide agood electrical ground with

clean, bright surfaces.

Output control plug or plugs (connector) must be

pushed in so it bottoms solidly in the receptacle.

Keep it clean and. tight.

IMPORTANT: Charging

fully charged battery.

system tests require a

15 AMP FLYWHEEL ALTERNATOR SYSTEM

The 15amp system has two white wires coming from

stator and is used on 3600rpm (maximum) engines.

See Figure 14.

14

,/-

(

(’‘-

,.

,.-.

,-

(.

,,-

i

(’

(’

\

TESTING PHELON 15AMP SYSTEM

BASIC TEST PROCEDURE

I1. Battery IBattery Voltage -unit notrunning

2. Regulator Battery Voltage ”after unit is running

3to5 minutes.

3. Alternator Stator Ohmmeter reading from stator output -

and Wiring with unit not running, check at plug.

Fully Charged

Battery.

4. Alternator and Measure AC open circuit stator voltage

Wiring. with unit running. Measure between

two stator leads with plug disconnect-

ed and unit running at approximately

3600rpm.

II

TEST VALUES I

i

12 vDC I

I

13.6 to 14.7 VDC I

5

.11 to .19-Ohms

28 VAC

VOLTAGE

REGULATOR-RECTIFIER CAUTION

\

Regulator must be

n

grounded through

mounting bolts.

=

QwTOTERIVIINAL ~

CONNECTOR

\~ALTERNATOR STATOR

MOUNTED BEHIND BLOWER WHEEL

15 AMP. SYSTEM

Used with Model CCKB-MS/2420

ALTERNATOR STATOR

MOUNTED BEHIND BLOWER WHEEL

\

TO TERMINAL

CONNECTOR

J!!!!

!!!iY”

RECTIFIER

ASSEMBLY

20 AMP. SYSTEM

Used with Model CCKB-MS/2440

and CCKB-MS/2733

FIGURE 14. FLYWHEEL ALTERNATORS

20 AMP FLYWHEEL ALTERNATOR SYSTEM

System Identification: Syncro flywheel alternator For testing this system, use avoltmeter-ohmmeter such

~...systems use aseparate regulator and aseparate recti- as aSimpson 270. Following are various alternator

tier. There are two black wires and one red wire coming problems with individual test procedures.

from the stator assembly. See Figure 14.

15

TESTING SYNCRO 20 AMP SYSTEM .-

TEST (

VALUE I,,

Battery voltage -unit not running. 12 Volts DC

Battery voltage with unit running at 1800rpm or more. 14.2 -14-.8 Volt DC *

AC voltage from stator with plug disconnected and 17 Volts AC *

unit running at approximately 1800 rpm. Black to Black J

Ohmmeter reading at plug when checking two AC stator .5 to .7-Ohms **

leads -unit not running. Black to Black

*-60 Volt minimum at greater than 2000rpm, Red to Ground.

●*-Resistance values (Ohms) are as follows berween wire pairs.

~“::

1.8-2.2A BLA

ARED

NO OUTPUT -STATOR ASSEMBLY: NOT E: Some installations may vary due to voltage drop

Exarni ne Ieadwires for loose or broken connections at

the regulator and rectifier. Use the Rxl scale on the in the length of ammeter harnesses. Other variations

may stem from a loose connector in the harness or loose

ohmmeter for detecting opens in the stator. Disconnect

the three wires that come from alternator stat_or (two or corroded battery leads. Low voltage readings at the

batterv mean Door batterv connections.

black, one red). Connect ohmmeter test leads to red . . . .

leadwire and ground to check continuity. The ohmmeter To test regulator, remove connector. Using the Rx1O,OOO

reading should be approximately 2.()-ohms. scale of your ohmmeter, connect one meter lead to red

leadwire and other meter lead to regulator base. No

Next connect meter to black leadwires and ground. deflection should be noted on the ohmmeter in either

Approximately O.1-ohm should be read from either polarity. Next connect meter, to black

black lead to ground. If no connection exists between base of regulator. Meter will deflect

ground and black leads, stator assembly should be

replaced. polarity with no deflection in the other.

. .

CHECKING RECTIFIER ASSEMBLY:

Examine each of the two diodes for breakdowri by con- ‘FULL CHARGE -WILL NOT REGULATE:

netting ohmmeter (Rxl scale) from one black lead to Check for broken leads at connection

white lead. Meter should read 10-ohms in proper

polarity. Ashorted diode would read zero resistance

and would cause ashort circuit through the lead winding

when in operation. An open diode would re”ad infinite in

both directions indicating that replacement is nec-

essary.

TESTING REGULATOR ASSEMBLY:

To check for proper voltage regulation, attach aDC

voltmeter to battery and operate engine at approximately

1800rpm. Battery voltage will climb to the preset

factory setting (14.2 to 14.8volts).

leadwire and

fully in one

to regulator

plates. To be sure regulator winding operates properly,

connect red lead to ground and start engine. Amaximum

of 4amperes should be noted. This would indicate

stator winding. is satisfactory. If so, replace regulator.

NO CHAR,GE:

If alternator does not charge when load is applied to

battery, shut off engine and disconnect one red lead- -

wire from regulator terminal. Be sure lead is taped or (

isolated from conducting engine parts. Once again,. ‘---

start engine. Alternator should charge to full output;

if it doesn’t, replace stator assembly.

16

STARTING SYSTEM -

ELECTRIC STARTER

Normally the starter will require little or no service

other than possible brush replacement. However, if

through accident or misuse, the starter requires service

or overhaul, the following procedures will provide the

information necessary to perform this service.

—.

FIGURE 15. ST ART.ER ASSEMBLY

STARTER DISASSEMBLY

1. Loosen the Mterminal nut on the magnetic switch

and remove the connector. Then unscrew attaching

screws and remove the magnetic switch.

NOTE: The packings for the magnetic switch are

mounted so that the steel packing is located in

FIGURE 17. REMOVING THROUGH-BOLTS

shown in Figure 17 are used for adjustment of the

thrust gap of the armature shaft and are placed

between the rear bracket and the commutator.

NOT E: These washers are inserted so the steel

washer is located in the commutator side.

3. The armature can easilv be removed from the front

bracket. Be careful nit to miss asmall steel

washer used in the end of the armature shaft. The

shift lever can be reirroved along with the armature

when it is removed. In this case, the spring holder,

lever springs and retainer can be taken out before

the lever. See Figure 18.

the front bracket side.

FIGURE 18. REMOVING ARMATURE

FIGURE 16. MAGNETIC SWITCH REMOVAL

2. After removing the thru bolts, the starting motor

can be divided into three parts –the front bracket,

housing and rear bracket. The spacing washers

4. Remove the ring after driving tlie pinion stopper

toward the pinion gear using acylindrical tool

as shown in Figure 19. The overrunning cIutch

and the pinion stopper should be removed simul-

taneously.

5. All four brushes have been soldered to the brush-

holder in the same way. The brush springs can be

removed from the brushholder.

6. The pole shoes may be removed if necessary, by

removing the flat head machine screws from the

frame.

FIGURE 19. REMOVING RING

FIGURE 20. BRUSHES

STARTER REASSEMBLY

Inspect the parts carefully in ‘accordance with the

procedure described in Inspection of Parts. Make any

repairs necessary. Reassembly is the reverse of

Disassembly. The following precautions should be

taken:

1. Clean all of the parts carefully with adry cloth

and compressed air if it is available.

Eiii53 Do not use steam or high pressure

water to clean the starter,

2.

~.

4.

5.

NOT E: (A) Bearing equipped parts must not ht:

immersed in cleaning fluid. These parts shGuid be

cleaned with a brush dipped ‘in “Varsol” or any

other comparable mineral spirits. (B) Do not

immerse overrunning clutch in cleaning sol~”ent.

(C) Thoroughly dry any parts that have come into

contact with the cleaning fluid.

Apply SAE 20 oil to the armature shaft and splines.

Apply grease (Shell Albania No. 2or equivalent)

sparingly on the shift lever pin, the joint of the

shift lever and plunger, the plunger and spacing

washers at the end of the shaft.

To mount the overrunning clutch; first insert the

pinion stopper into the armature shaft, then apply

the ring to the groove of the shaft rigidly. For the

insertion of the ring, use atool as shown in

Figure 21 and pull the pinion stopper UP.”

Use spacing washers to adjust the armature to give

end play of .004 “to .020 “.

Tighten- the thru bolts to atorque of 35 to 44

in-lbs.

.’

FIGURE 21. MOUNTING OVERRUNNING CLUTCH

18

(-

-.-

(_

(“

\

,/ -

/

\-.

-f’””

\..

FIGURE 22. INSTALLING SHIFT LEVER

INSPECTION OF PARTS

1. Testing Armature for Short Circuits: place the

armature in agrowler and hold athin steel blade

parallel to the core and just above it” while slowly

rotating the armature in the growler. Ashorted

armature will cause the blade to vibrate and be

attracted to the core. Replace shorted armature.

FIGURE 23. TESTING ARMATURE FOR SHORT CIRCUITS

.

2%

3.

4.

Testing Armature for Grounds: Touch armature

shaft or core and the end of each commutator bar

with apair of ohmmeter leads. If the ohmmeter

reading is low, it indicates agrounded armature.

Replace grounded armature.

Testing Armature for Open Circuit: The most likely

place for an open to occur is at the commutator

riser bars. Inspect the points where the conductors

are joined to the commutator bars for loose

connections.

Testing Commutator Runout: Place armature in a

test bench and check runout with adial indicator.

When commutator runout exceeds .004 “, commuta-

tor should be refaced.

FIGURE 24. TESTING ARMATURE FOR GROUNDS

FIGURE 25. TESTING COMMUTATOR RUNOUT

5. Testing Armature Shaft Runout: The armature shaft

as well as the commutator mav be checked. Abent

armature often may be straightened, but if the shaft

is worn, anew armature is required.

FIGURE 26. TESTING ARMATURE RUNOUT

19

6. Testing Field Coils for Grounds: Place one lead

on the connector and the other on aclean spot on

the frame after unsoldering shunt field coil wire.

If the ohmmeter reading is low, the fields are

grounded, either at the connector or in the

windings.

FIGURE 27. TESTING FIELD COILS FOR GROUNDS

7. Testing Field Coils for Open Circuit: Place one

lead on the connector and the other on aclean

spot on the brushholder. If the ohmmeter reading

is high, the field” coil is open. Check the other

three brushholders in the same manner.

FIGURE 28. TESTING FIELD COILS FOR OPENS

8. Inspection of Brushes: When brushes are worn more

than .3 “they are to be replaced. Figure 29 shows

the wear limit. See that the brushes move smoothly

in the brushholders.

,u“

T

WEAR LINll TT –____ .55”

.3”

-L

FIGURE 29. BRUSH WEAR LIMIT

20

9, Inspection for Brush Spring Tension: Measure brush

spring tension with atension meter as shown in

Figure 30. Push the brush and take” areading just ,,

as the brush projects alittle from the brushholder. (’

On anew brush the spring tension should be 29 to.

‘~.

38 ounces.

FIGURE 30. TESTING BRUSH SPRING TENSION

INSPECTION AFTER OVERHAUL

1. For no load test, the starting motor is wired as

shown in Figure 31 and run. The value of the meter

reading at this condition should be as follows:

Voltage 11.svolt .(--

‘>.

-

RPM 3700

Current Draw 60 AMax.

sWITCH AMMETER

I

~1

BATTERY

MvEOTLETRv~

=

~

~—

RPM

ND ICATOR

.—

FIGURE 31. STARTER MOTOR WIRING

.-

,/

(..

STARTING \

J

MOTOR BATTERY

FIGURE 32. BATTERY CONNECTIONS

FIGURE 33, ADJUSTING PINION CLEARANCE

2.

NOTE: The conductor for this test should be large

enough and as short as possible, If anything is

wrong in

items:

o

e

●

●

●

●

●

the previous test, inspect the following

Annealed brush springs

Improperly seated brushes

Insufficient armature “end play

Shorted, open or grounded armature

Grounded or open field coil

Poor electrical connection

Dirty commutator

To adjust pinion clearance, connect the battery

to the starting motor as shown in Figure 32. This

will allow the pinion of the starting motor to slide

and stop. In this state, measure the clearance

between the end of the pinion and pinion stop when

the pinion is pushed lightly toward the commutator

end. Clearance should be .02 “to :06 “. Adjust for

proper clearance by removing the magnetic switch

attaching screws and select the proper thickness

of the fiber packings shown in Figure 33.

ENGINE DISASSEMBLY ,-

(

-.

If engine disassembly is necessary, first remove all

the complete assemblies (e.g. manifold with carburetor

and cartridge air cleaner. Individual assemblies, as the

car buretor, ”can be removed and serviced later, if

necessary. Any special assembly instructions for a

particular group are included in the applicable section.

When reassembling, check each section for these

special assembly instructions or procedures.

FLYWHEEL

To remove the flywheel, turn the flywhe”el mounting

screw outward about two turns and use Onan puller

420-0100 to pull the flywheel (Figure 34). -

FIGURE 34. ONAN FLYWHEEL PULLER-

Do not drop the flywheel. Abroken fin will destroy the

balance. Always use asteel key for mounting the fly-

wheel,

Emit’Do not use ascrewdriver or similar

tool or pry behind the flywheel against

the gearcase. The gearcase cover is die-cast material

and will break if undue pressure is applied in this

manner.

GEAR COVER

After removing the flywheel key and mounting screws,

tap the gear cover gently with asoft-faced hammer to

loosen it.

EziiEcI

When installing the gear cover, make

sure that the pin in the gear cover

engages the governor cup correctly (see below).

Turn the governor cup so that the metal lined hole is

at the three o’clock position. The smooth side of the

governor yoke must ride against the governor cup. Turn - ‘-

the governor arm and shaft clockwise as far as possible (

and hold in this position until the Rear cover is in- -

stalled flush against the crankcase. ‘Be “careful not to

damage the gear cover oil seal. Adjust the roll (stop)

pin to protrude to apoint 3/4 inch from the cover

mounting surface. See Figure 36.

ARM

RSHAF

NOR

YOKE

Side

cup)

SEAL

GOVERNOR

IF FEELER WILL

ENTER HOLE 1/29’,

BALL HAS

FALLEN OUT (’

\.

FIGURE 35. GEAR COVER ASSEMBLY

,.

;

[

GOVERNOR CUP

\Vith the gear cover removed, the governor cup can be

taken off after removing the snap ring from the cam-

shaft center pin. Catch “the flyballs while sliding the

cup off. See Figure 36,

t--k

*

#“,;,,

WHEN GOVERNOR

IS PROPERLY

AS SE ME LEO THE

DIMENSION SHOWN CAMSHAFT

ON ORAWING wlLL .. GEAR

BE AS INDICATED ‘?’

CENTER PIN

sr+AP RINGJ b

3

GOVERNOR CUP ‘/

‘,

GOVERNOR FLYBALL Al

>?.-

Iwiiii

[W?&d

“em

FIGURE 36. GOVERNOR CUP

Replace any flyball that is grooved or has aflat spot.

If the arms of the ball spacer are worn or otherwise

damaged, replace the entire timing gear .set. The

governor cup must spin freely on the camshaft center

pin [vithout excessive looseness or wobble. If the race

surface of the cup is grooved or rough, replace it with

anew one.

\~hen installing the governor cup, tilt the engine so

the gear is up, put the flyballs in place and install the

cup and snap ring on the center pin (Figure 36).

The camshaft center pin extends out 3/4 inch from the

end of the camshaft. This distance provides an in-and-

out travel distance of 7/32 inch for the governor cup,

as illustrated. Hold the cup against the fly balls when

measuring. If the distance is less (the engine may race,

especially at no load), remove the center pin and press

anew pin in only the required amount. Otherwise,

grind off the hub of the cup as required. The camshaft

center piri cannot be pulled outward nor removed with-

out damage. If the center pin extends out too far, the

cup will not hold the flyballs properly,

TIMING GEARS

If replacement of either the crankshaft gear or the

camshaft gear becomes necessary, install both gears

new, never one only. Use agear pulling ring (Onan No.

420-0248) to remove the crankshaft gear. Be sure to

remove the snap ring first.

The camshaft gear is pres=ed on and keyed to the

camshaft. The camshaft and gear must be removed as

an assembly aft,er first removing the crankshaft gear

lock ring and washer. Before removing the camshaft

and gear assembly, remove the cylinder head and valve

assemblies. Remove the operating plunger for the

breaker points. Remove the fuel pump and tappets.

The camshaft may be pressed out of the gear by use of

ahollow tool or pipe which will fit over the camshaft

center pin. Do not press on the center pin or damage

it in any way. The governor ball spacer is apress fit

to the camshaft gear.

When pressing acamshaft gear onto the camshaft, be

sure the gear is started straight and that the key is

properly in place. When replacing the cam gear on units

having automatic spark advance mechanisms, remove

the spark advance mechanism and put blocks beside

the pins to avoid damage when pressing on cam gear.

Install the governor cup assembly before installing the

camshaft and gear in the engine.

Each timing gear is stamped with an Omark near the

edge. The gear teeth must mesh so that these marks

coincide exactly when the gears are installed in the

engine (Figure 37). Be sure, when installing the cam-

shaft gear and shaft assembly, that the thrust washer

is properly in place behind the camshaft gear. Replace

the camshaft retaining washer and lock ring to the

crankshaft.

FIGURE 37. TIMING GEAR REMOVAL

AND INSTALLATION

CYLINDER HEADS

The ‘cylinder heads should be tightened in the order

designated per Figure 38 to atorque of 5foot-pounds,

then 10 foot-pounds, etc. until all are torqued to 29

to 31 foot-pounds,

I0. .0I

5===== 6

NO.1 CYLlNDF41 NO.2 CYL8NDSR

VALVES

FIGURE 3B. HEAD BOLT TIGHTENING

SEQUENCE

Properly seated valves are essential to good engine

performance. The cylinder head is removable for valve

servicing. Do not use apry to loosen ‘the cylinder

head. Rap sharply on the edge with asoft-faced

hammer, taking care not to break any cooling fins. A

conventional type valve spring lifter may be used when

removing the valve spring locks, which are of the split

type. Clean “all carbon deposits from the cylinder head,

piston top, valves, guides, etc. If avalve face is

burned or warped, or the stem worn, install anew

valve.

Worn valve stem guides may be replaced from inside

the valve chamber. See Figure 39. Aseal is provided

behind the intake valve guides only. The smaller

diameter of the tapered valve guides must face toward

the valve head.

Tappets are also replaceable from the valve chamber,

after first removing the valve assemblies.

/

“’VEF7

FIGURE 40. VALVE FACE AND SEAT ANGLES

The valve face angle is 440. The valve seat angle is

45°. This 1° interference angle results in asharp

seating surface between the valve and the top of the

valve seat. The interference angle method of grinding

valves minimizes face deposits and lengthens valve

life (Figure 40). (-’

...

The valves should not be hand lapped, if at all avoid-

able, since the sharp contact may be destroyed. This

is especially important where stellite faced valves

and seats are used. Valve faces should be finished in

amachine to 440. Valve seats should be ground with a

45° stone and the width of the seat band should be

1/32 to 3/64 of an inch wide. Grind only enough to

assure proper seating.

Remove all grinding compound from engine parts and

place each valve in its proper location. Check each

valve for atight seat, using an air pressure type test-

ing tool. If such atool is not available, make pencil

I

I

f

i,

NOTE -USE ASTANDARD NOTE -SEE VALVE TAPPET

AUTOMOTIVE TYPE WRENC

TO ADJUST THE TAPPETS.

IL1

FIGURE 39. CCKE VALVE SYSTEM

L

_

. .

..

-1’

(,

marks at intervals across the valve face and observe

it’ the marks rub off uniformly when the valve is rotated

part of aturn against the seat.

Lightly oil the valve stems and reassemble all parts

removed. Adjust the valve clearance (see Tappet

Adjust ment).

The positive type valve rotocoils serve to prolong

valve life and decrease valve repairs. Check the roto-

coils periodically by removing the cylinder heads and

cranking the engine. When functioning properly, the

valve is rotated afraction of aturn each time it opens.

If rotocoils are faulty, install new ones.

TAPPET ADJUSTMENT

The engine is equipped with adjustable tappets. To

make avalve adjustment, remove the valve covers.

Crank the engine over slowly by hand until the left

hand intake valve, when facing the flywheel, opens

and closes. Continue about 1/4 turn until the correct

timing marks align. This should place the left hand

piston at the top of its compression stroke, the posi-

tion it must be in to get proper valve adjustment for

the left hand cylinder. Clearances are shown in

Dimensions and Clearances section. For each valve,

the gauge should just pass between the valve stem

and valve tappet (Figure 41).

To correct the valve clearance, turn the adjusting

screw as needed to obtain the right clearance. The

screw is self-locking.

To adjust the valves on the right hand cylinder, crank

the engine over one complete revolution and again

line up the correct timing marks. Then follow the

adjustment. given for the valves of the. left hand

cylinder.

INTAKE AND EXHAUST VALVES

(SEE TABLE OF CLEARANCES) /

FIGURE 41. ADJUSTING TAPPETS

PISTONS AND RINGS

Whenever there is anoticeable wear ridge at the top of

each cylinder, remove the ridge with aridge reamer

before removing the pistons. If ridge is -not removed,

the rings can catch the ridge when pushing out the

pistons and cause aring land fracture (Figure 42).

WEAR RIDGE”

—

-

—

PISTON S

RING LAND

CYLINDER

WALL

....-. .

REk40v ING PISTON ,WITH LARGE WEAR

RIDGE COULD BREAK RING OR RING LAND.

FIGURE 42. WEAR RIDGE ON CYLINDER WALL

To remove the piston and connecting rod assemblies,

turn the crankshaft until apiston is at the bottom of

the stroke. Remove the nuts from the connecting rod

bolts. Lift the rod bearing cap from the rod and push

the rod and piston assembly out the top of the cylinder

with the handle end of ahammer. Be careful not to

scratch the crankpin or the cylinder wall when

removing these parts.

NOTE: Keep the connecting rod bearing caps and

bearings with their respective rods.

The pistons are fitted with two compression rings and

one oil control ring with an expander. Remove ‘these

rings from the piston using apiston ring spreader.

Clean the piston ring grooves with agroove cleaner

or the end of abroken ring filed to asharp point (see

Figure 43). All passages should be cleaned with a

non-caustic solvent. Clean the rod bore and the back

of the connecting rod bearings thoroughly.

Mark each piston to make sure the rod will be assem-

bled on the piston from which it was removed. Remove

the piston pin retainer from each side and push the pin

out .

25

B21

FIGURE 43. CLEANING RING GROOVES

Inspect the pistons for” fractures at the ring lands,

skirts and pin bosses. Check for wear at the ring land

using new rings and afeeler gauge as showrr in

Figure 44. See Dimensions and Clearances section

for proper side clearance measurement and ring groove

widths.

Improper width rings or excessive ring side clearance

can result in ring breakage. New rings in worn ring

grooves don’t have good cylirider wall contact

(Figure 45).

Replace pistons showing signs of bad scoring or bur-

ring, excessive skirt clearance, wavy or worn ring

lands, fractures or damage from detonation. Replace

piston pins showing fractures, scored bores or bores

out of round more than 0.002 inch.

CYLINDER

WALL

... ...-—.

FIGURE 45. NEW RING IN WORN

PISTON RING GROOVE

Use anew piston pin to check the pin bushing in the

connecting rod for wear. The clearance should be as

shown in Dimensions and Clearances section.

Before installing new rings on the piston, check the

ring gap by placing each-ring squarely in its cylinder

at aposition corresponding to the bottom of its travel

(see Figure 46). The gap between the ends of the ring

is given in Dimensions and Clearances section. Rings

which are slightly oversize may be filed as necessary

to obtain the correct gap, but do not use rings which

require too much filing. Standard size rings may be

used on .005 inch oversize pistons. Other oversize

rings must be used with corresponding oversize pistons.

RING IN

RBORE

GAGE

w

f’

ix....

-(”

‘k.,..

FIGURE 44. INSPECTING RING LANDS FIGURE 46. FITTING PISTON RINGS

Rings of the tapered type are usually marked top on

one side, or identified in some other manner and the

/“ ring must be installed with this mark toward the closed

“,, end of the piston.

Space each ring gap one third of the way around the,

piston from the preceding one, with no gap directly

in line with the piston. pin. The bottom piston ring

groove should be fitted with an expander and an oil

control ring and the two upper grooves fitted with

compression rings: If achrome faced ring is used, it

will be in the top groove. The oil control ring is select-

ed for best performance in regard to the correct unit

pressure characteristics.

The piston is fitted with afull-floating type piston

pin. The pin is kept in place by two lock rings in the

piston, one at each side. Be sure these lock rings are

properly in place before installing the piston and con-

necting rod in the engine. Refer to Dimensions and

Clearances section for the correct piston-to-cylinder

clearance.

CONNECTING RODS

The connecting rods should be serviced at the same

time the pistons or rods are serviced. Rods must be

removed with the piston. Replaceable bushings and

bearings are used. See Parts Catalog section for

available undersize and standard size bearings.

Proper clearance is obtained by replacing the pin

(’ bushing and the bearings. The rod bearings are pre-

cision size and require no reaming.

Install the connecting rods and caps with raised lines

(witness marks) aligned and with the caps facing toward

the oil base. The rod and cap numbered 2fits on the

crankshaft journal nearest the bearing pla~e. Coat the

crankshaft journal bearing surfaced with oil before

installing the rods. Crank the engine by hand to see

that the rods are free. If necessary, rap the connecting

rod cap screws sharply with asoft-faced hammer to

set the rod square on the journal.

Checking Bearing Clearance with Plastigage: Make

certain that all parts are marked or identified so that

they are reinstalled in their original positions.

Place apiece of correct size Plastigage in the bearing

cap the full width of the bearing insert about 1/4 inch

off center (Figure 47),

Rotate the crank about 30° from bottom dead center

and reinstall the bearing cap. Tighten the bolts to the

torque specified in the Assembly Torques and Special

Tools section. Do not turn the crankshaft,

Remove the bearing cap. Leave the flattened Plasti-

,{. gage on the part to which i! has adhered and compare

~.. .

the widest point with the graduations on the Plasti-

gage envelope to determine bearing clearance.

FIGURE 47. MEASURING BEARING CLEARANCE

WITH PLASTIGAUGE

CYLINDER BLOCK

Inspection:

1.

2.

3.

4.

Make athorough check for cracks. Minute cracks

may be detected by coating the suspected area

with amixture of 25% kerosene and 75% light motor

oil. Wipe the part dry and immediately apply a

coating of zinc oxide (white lead) dissolved in

wood ~lcohol. If cracks are present, the white

coating will become discolored at the defective

area.

Inspect the cylinder bore for scoring. Check the

Welsh plugs for atight, even fit and the fins for

breakage..

Check the cylinder bore for taper, out of round

and wear with acylinder bore gauge, telescope

gauge or inside micrometer {Figure 48). These

measurements should be taken at four places –

the top and bottom of piston -ring travel.

Record measurements taken lengthwise at the top

and bottom of the piston travel as follows:

a.

b.

c.

Lengthwise of the block, measure and record

as “A” the diameter of the cylinder at the top

of the cylinder where the greatest ring wear

occurs.

Also, lengthwise of the block, measure and

record as ‘‘B” the cylinder diameter at the

piston skirt travel.

Crosswise of the block, measure and record “as

“C” the diameter of the top of the cylinder at

the greatest point of wear.

27

FIGURE 48. METHODS OF CYLINDER

BORE INSPECTION

d. Measure and record as “D” the diameter at the

bottom of the cylinder bore and crosswise of

the block.

e. Reading “A” compared to reading “B” and

reading “C” compared to reading “D” indi-

cates cylinder taper.

f.If cylinder taper exceeds 0.005 inch, rebore

and hone to accommodate the next oversize

piston. Reading “A” compared to reading “C”

and reading “B” compared to reading “D”

indicates whether or not the cylinder is out of

round. If the out of round exceeds 0.002 inch,

the cylinders must be rebored and honed for

the next oversize piston. Areboring machine

is used when going to oversize pistons. The

following repair data covers honing to oversize

by use of ahone.

28

Repair:

1.

2.

3.

4.

5.

6.

7.

8.

9.

Ahone can be used to rebore acylinder (Figure

49). Remove stock to 0.002 inc% undersize of finish

bore with coarse hone (100 grit), then complete

honing with finish hones (300 grit).

Anchor the block solidly for either vertical or

horizontal honing. Use either adrill press or

heavyduty drill which operates at approximately

250 to 450 rpm.

Lower the hone into “the cylinder until it protrudes

1/2 to 3/4 inch past the end of the cylinder. Rotate

the adjusting nut until the stones come in contact

with the cylinder wall at the narrowest point.

Turn the hone by hand. Loosen the adjusting nut

until the hone can be turned.

Connect drill to hone and start drill. Move the hone

up and down in the cylinder approximately 40

cycles per minute. Usually the bottom of the cylin-

der must be worked out first because it is smaller.

Then when the cylinder takes auniform diameter,

move the hone up and down all the way through the

bore. Follow the hone manufacturer’s recommenda-

tions for wet or dry honing and oiling the hone.

Check the diameter of the cylinder regularly during

honing: Adial bore gauge is the easiest method

but atelescoping gauge can be used. ”Check the

size at six places in the bore; measure twice at

at the top, middle and bottom at 90° angles.

When the cylinder is approximately 0.002 inch

within the desired bore, ch-ange to fine stones and

finish the bore. The finish should not be smooth

but as shown in Figure 50. The crosshatch formed (

by the scratching of the stones should form an .._

angle of 230. This can be achieved by moving the

hone up and down in the cylinder about 40 cycles

per minute.”

Clean the cylinder block thoroughly with soap,

water and clean rags. Aclean white rag should not

be soiled on the wall after cleaning is complete.

Do not use asolvent or gasoline since they wash.

the oil from the walls but leave the metal

particles, ”

Dry the crankcase and coat it with oil.

FIGURE 49. HONING CYLINDER

,,-

~.,

...

PRODUCE CROSS HATCH SCRATCHES

FOR FAST RING SEATING AVOID THIS FINISH

FIGURE 50. CORRECT HONE FINISH

,-

CRANKSHAFT

Inspect the bearing journals. If they are scored and

cannot be smoothed out by dressing down, the bearing

journals should be refinished to use nearest available

undersize bearings or anew crankshaft should be

installed. If aworn main bearing journal- cannot be

fitted with an available precision type undersize

bearing, then refinish it to the next undersize. If a

-worn rod journal cannot be fitted by installing new

bearing inserts (forged rod), then refinish it to take

the corresponding undersize bearing insert available.

Whenever making major repairs on the engine, always

inspect the drilled passages of the crankshaft. Clean

them to remove any foreign material and to assure

proper lubrication of the connecting rods.

BEARINGS

Remova1of the camshaft or crankshaft bearings requires

complete disassembly of the engine. Use apress or a

suitable drive plug to remove the bearings. Support

the casting to avoid distortion and avoid damaging the

bearing bore during removal and installation. Use oil

on the bearings to reduce friction wherr installing and

again lubricate with oil after installing (see Figure 51).

Use combination bearing driver 420-0324 to install the

camshaft bearings.

..-

,

\,

k.. Camshaft

Replacement camshaft bearings are precision type

which do not require line reaming or line boring after

installation. Coat the bearing with lubricating oil to

reduce friction. Place the bearing on the crankcase

over the bearing bore with the lubricating hole (front

only) in proper position. Be sure to start the bearing

straight. Press the front bearing in flush with the out-

side end of the bearing bore. Press the rear bearing

in until past the ignition plunger hole.

PRECISION TYPE -

~~

.,,,,.

—

Do not line ream

or bore. :~k 7/329’

.--- —__________ _____

ALIGN HOLE IN BEARING, ~

)*J Y“?.

WITH HOLE IN BEARING BORE SIOE

CAMSHAFT BEARING

,;l (LOCK PIN

~:,7-7-TCALIGN BEARING OIL HOLES WITH

I . ‘,&,& OIL HOLES IN BEARING SORE

f

.\: /j ,: ,T

To

j/ ).

~,i THRUST

&:/ WASH ER

fynl)~.~ PRECISION TYPE -

Do not line ream

‘BEARING or bore.

-. _—._

LOCK PIN

CRANKSHAFT BEARING

FIGURE 51. INSTALLATION OF CAM AND

CRANKSHAFT BEARINGS

.

Crankshaft

New crankshaft main bearings are precision type which

do not require line reaming or line boring after install-

ation. See Parts Catalog section for standard size and

undersizes available.

Before putting in the main bearings, expand the bearing

bore by placing the casting in hot water or in an oven

heated to 200°F. If practical, cool the precision bear-

ing to shrink it.

For putting in either the front or rear main bearing,

using instructions following, always align the oil

hole(s) in the bearing with the oil hole(s) in the bearing

bore. The oil passage must be at least 1/2 open. The

cold oiled precision bearing should require only light

taps to position it. Install the bearing flush with the

inside end of the bore. If the head of alock pin is

damaged, use side cutters or “Easy -Out’’tool to re-

move pin. Then install anew lock pin. Apply oil to the

thrust washers to hold in place when the crankshaft

is installed. The oil grooves in the thrust washer

bearings must face the crankshaft. Be sure two notches

fit over lock pins.

OIL SEALS

The bearing plate must be removed to replace its oil

bearing plate driver 420-0181 and gear cover driver

420-0313.

Before installing the seals, fill the space between

seals with afibrous grease or stiff cup grease, This

will improve sealing (-see Figure 52).

When installing the gear cover oil seal, tap the seal

inward until rear (spring side) of casing is 1inch from

the mounting face of the cover. Install new style, thin

open face seal, 1-7/64 inches from mounting face ot’

cover.

When installing the bearing plate oil seal, tap the

seal into the bearing plate bore to bottom against the

shoulder in the plate bore. Use aseal expander, or

place apiece of shim stock around the end of the

crankshaft, when replacing the bearing plate to avoid

damaging the seal. Remove the shim stock as soon

as the plate is in place.

Engines equipped with some types of reduction gear

assemblies, do not use the rear oil seal. The reduction

gear assembly is oiled directly from the engine crank-

case. Refer to the instructions Screened on the case

seal. Drive the oil seal out from the inside using of the reduction gear assembly.

“[ J

Use heavy fiber or

cup grease in space

between seals to

improve seal. I,REAR BEARING PLATE

GE

THIS SURFACE SHOULD BE

CLEANED OF ALL OLD

SEALING COMPOUND BE-

FORE INSTALLING SEAL.

DRIVE OR PRESS OIL

SEAL TO SHOULDER

OF THE PLATE BORE

GEAR COVER OIL” SEAL REAR BEARING PLATE

OIL SEAL

~...

(.,

FIGURE 52. GEAR COVER AND REAR BEARING PLATE OIL SEALS

30

CRANKSHAFT ENDPLAY

After the rear bearing end plate has been tightened

using the torque recommended in Assembly Torques

and Special Tools section, check the crankshaft end-

play as shown in Figure 53. If there is too much

endplay (see Dimensions and Clearances section for

minimum and maximum endplay), remove the rear bear-

ing end plate and replace the gasket with athinner

gasket from the gasket kit. For too little endplay,

remove the rear bearing end plate and replace the

gasket with athicker one. Reinstall the end plate

making sure the thrust washer notches line up with

the lock pins. Torque and recheck endplay of the

crankshaft.

~.,..

~h--

!~ REAR BEARING

PLATE

1, ~,,,,

,,,

)Ik

pl!!!-

., MEASURE EN DPLAY

“’”J !

HERE

.: ..,,.

,,, ,,:...:. (Refer to table of

ocIearan ces)

FIGURE 53. MEASURING CRANKSHAFT.

EN DPLAY

.,

OIL PUMP

Check the oil pump thoroughly for worn parts. Oil the

pump to prime it before reinstalling (Figure 54). Except

for gaskets, the component parts of the pump are not

available individually. The suction cup is available

separately. Install anew pump as”sembly, if required.

CR

UNSCR

FRU4 I

To reas

FIGURE 54.. OIL PUMP

PARTS CATALOG -

This catalog applies to tractor application CCKB Engines. Parts are arranged in groups of related items and are

identified by areference. Part illustrations are typical. Using the Model and Spec No. from the engine nameplate,

select the Parts Key No. that applies to your engine. This Parts Key No. represents parts that differ between

models. Right and left engine sides are determined by facing the blower end (front) of the engine.

INSTRUCTIONS FOR ORDERING REPAIR PARTS

For parts or service, contact the dealer from whom you purchased this equipment or refer to your Neares

Authorized Onan Parts and Service Center.

To avoid errors or delay in filling your parts order, please furnish all information requested.

Always refer to the nameplate on your unit:

1.

2.

.3.

4.

Always give the MODEL and SPEC NO. and SERIAL NO.

PARTS KEY TABLE

MODEL AND SPEC NO. PARTS KEY NO.

CCKB-MS/2420 H,+

CCKB-MS/2440 H,~,2]

CCKB-MS/2733 J3

For handy reference, insert YOUR engine

nameplate information in the spaces above.

Do not order by reference number or group number; always use part number and description.

Give the part number, description and quantity needed of each item. If an older part cannot be identified,

return the part prepaid to your dealer or nearest AUTHORIZED SERVICE STATION. Print your name and

address plainlyon the package. Write aIettertothe same address stating the reason for returning the part.

State definite shimin~ instructions. Any claim for loss or damage to your unit in transit should be filed

(-.

promptly against’ ihe ~ransportation company making the delivery. Shipments are complete unless the “

packing list indicates items are back ordered.

Prices are purposely omitted from this Parts Catalog due to the confusion resulting from fluctuating costs,

import duties, sales taxes, exchange rates, etc. c-.

For current parts prices, consult your Onan Dealer, Distributor or Parts and Service Center.

32.

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26 27 I

___u “II

DRANKSHAFT, FLYWHEEL, CAMSHAFT

AND PISTON GROUP

--- - --- -—.

Htt. PAH 1UTY. PART

NO. NO. USED DESCRIPTION

7150% TRing, Camshaft Center Pin

2150-0612 1Cup, Governor

3510-0015 5Ball, Fly-Governor

4134-0673 1Gear, Ring -Flywheel

5FLYWHEEL (Includes Ring Gear and Rotor)

134-2621 1Key 1(15 Amp. Alternator)

134-2642. “Key 2&3(20 Amp. Alternator)

6105-rx%zE3033Z jGear ~, Timing (Includes

~t

7105-0004 GeeI@- i%-’iJ hAIJtd +)

1Washer, Camshaft Gear Thrust

8515-0001 1Key, Camshaft Gear Mounting

9105-0238 1Camshaft (Includes Center

Pin)

10 150-0075 1Pin, Camshaft Center

11 PISTON AND PIN (Includes Retaining Rings)

l!.’-O*I79 ‘2 Standard

K

11,~-o -2.005” Oversize

112-0 -lo 2.01 O“ Oversize

112-0 -20 2.020” Oversize

1I2-o -30 2.030” Oversize

1I2-o -40 2.040” Oversize

12 112-0069 2Pin, Piston

13 112-0003 4Ring, Piston Pin Retaining

14 114-0203 z. Rod Assembly, Connecting

(Forged) -Includes Bushing

and Place Bolts

15 RING SET, PISTON

113-0153 2Standard

113-0153-05 2.005” Oversize /

REF.

NO.

16

17

18

19

20

21

22

23

24

PART OTY. PART

NO. USED DESCRIPTION

113ZXZ-10 Y.01 0“ Oversize

113-0153-20 2.020” Oversize

113-0153-30 2.030” Oversize

113-0153-40 2.040” Oversize

805-0010 4Bolt, Place -Connecting

Rods (Special)

BEARING, CONNECTING ROD

114-0188 4Standard

114-0188-02 4.002” Undersize

114-0188-10 4.010” Undersize

114-0188-20 4.020” Undersize

114-0188-30 4.030” Undersize

114-0036 2Bushing, Piston Pin -

Connecting Rod

526-0128 Washer, Flywheel Mounting

KEY, FLYWHEEL ~OUNTING

515-0098 1#Key3

515-0002 1Key l&2

104-0170 1Screw, Flywheel Mounting

(Special)

515-0001 1 # Key, Crankshaft Gear

Mounting

518-0014 1Lock, Crankshaft Gear Washer

104-0043 1Washer, Crankshaft Gear

Retaining

F

25 104-CilW13~ i1Crankshaft (Replaces all SpeCS. (’

Key

26 150-1257 1+Spacer, Governor Fly Ball~~

27 150-0077

28 850-0055 1~Plate, Governor Fly Ball

1Washer, Lock -Flywheel

CYLINDER BLOCK GROU~

37 -F 36

6a-2

s

—14

5

r38

r

34

31 -o

/4 24

/

20

,,/-

I22

34

;@

>

>.

-.

.

{’

,“..

REF. PART

NO. NO.

7110-1885

2123-0954

3123-0953

4123-0865

5509+? 117

6110-0666

7110-0867

QTY.

USED

1

1

1

1

1

2

2

PART

DESCRIPTION

Block Assembly, Cylinder

(Includes Parts Marked ●)

Cap, Breather Tube

Tube, Breather

Baffle, Breather Tube

Seal, “O” Ring -Breather

Tube

Cover, Valve Compartment

Gasket, Valve Cover

8517-0048 1●Plug, Camshaft Expansion

9800-0512 5●Screw, Bearing Plate Mounting

(5/16-18 x1”) -Replaces

Stud and Nut used on early

models

10 509-0090 2Seal, Intake Valve Stem

11 110-0892 2Gasket, Cylinder Head

12 110-0884 1Head, Cylinder -Right

(W?Cylinder)

13 110-0883 1Head, Cylinder -Left

(#1 Cylinder)

14 123-0958 1Screen, Breather Tube

15 BEARING, CRANKSHAFT

16

17

18

19

20

21

22

23

24

101-0450

101-0450-02

101-0450-10

101-0450-20

101-0450-30

104-0575

101-0115

101-0422

101-0367

509-0041

516-0072

110-0445

110-0904

526-0063

2

2

2

2

2

2

1

1

2

1

4

5

4

2

‘Standard

.002” Undersize

.010” Undersize

.020” Undersize

.030” Undersize

●Washer, Crankshaft Bearing

Thrust

●Gasket Kit, Bearing Plate

‘Plate, Bearing (Excludes

Bearing)

●Bearing, Camshaft Front or

Rear (Precision)

●Seal, Bearing Plate

“pin, Main Bearing Stop

Nut, Bearing Plate Stud

(5/16-18) -Used on Early

Models

Rotocap, Valve

Washer, Copper -Valve

Compartment Cover

REF. PART QTY. PART

NO. NO. USED DESCRIPTION

—— -..

25

26

27

28

29

30

31

32

33

34

35

850-0045 5“Washer, Lock -Rear Bearing

Plate

120-0386 1●Tube, Crankcase Oil

VALVE

110-1037 2Intake- Chrome Cobalt Alloy

110-0860 2Exhaust-Chrome Cobalt Alloy

INSERT, VALVE SEAT-Chrome Cobalt Alloy

11O-I3872 2●Exhaust, Standard

110-0872-02 2.002” Oversize

11O-O872-O5 2.005” Oversize

110-0872-10 2.010” Oversize

110-0872-25 .025” Oversize

110-1000 ;“Intake, Standard

110-1000-02 2.002” Oversize

110-1000-05 2.005” Oversize

110-1000-10 2.01 O“ Oversize

110-1000-25 2.025” Oversize

●GUIDE, VALVE

110-0902 2Exhaust

110-1827 2Intake

110-0539 4Spring, Valve

123-0951 Clamp, Breather Cap

110-0639 ;Lock, Valve and Spring

Retaining

TAPPET, VALVE

115-0006 4Standard

115-0006-05 .005” Oversize

SCREVV, HEX HEA’& CAP

110-0879 6Cylinder Head

(5/16-18 X1-1/4”)

114-0022 10 Cylinder Head

(5/16-18 X1-3/4”)

800-0012 2Valve Compartment Cover

(1/4-20 X2-1/4”)

526-0122 16 Waaher, Flat -Cylinder Head

Screws

503-0582 Hose, Breather

503-0170 ;Clamp, Breather Hose

809-0035 Screw, Breather Ofamp

123-0998 1Insulator Half, Braather

Tube

●-Included in Cylinder Block Assembly.

35

40 l/o-3J3t

GEAR COVER, OIL BASE

AND OIL PUMP GROUP

/7

I I

Al 3.

9

“.

-.

,,,

,

36

;-

-,

.

REF. PART PART

NO. NO. :SXD DESCRIPTION

7- 509= 1‘Seal, Oil -Governor Shaft

2510-0013 1“Bearing, Governor Shaft -

Upper

3ARM AND SHAFT ASSEM13LY, GOVERNOR

150-1422 1“Key 3

150-1008 1Key l&2

,4 YOKE, GOVERNOR SHAFT

150-1187 1●Key 3

150-0620 1Key l&2

5518-0129 1Ring, Yoke Retaining -

Keyl &2

6516-0130 1●Pin, Governor -Cup Stop

7BEARING, GOVERNOR SHAFT-LOWER

510-0013 1“Key 3

510-0008 1Key l&2

8510-0014 1●Ball, Bearing -Governor Shaft

9COVER ASSEMBLY, GEAR

?(]3-0333 1

103-0480 1

10 103-0011 1

11 123-0694 1

12 123-0191 1

13 102-0158 “1

14 526-0065 2

15 BASE, OIL

102-0770 1

102-0740 1

16 SCREW, HEX CAP

102-0455 4

800-0028 2

114-0022 4

800-0034 1

800-0007 2

Key l&2

Key 3- Complete Assembly Replace!

All Specs (includes Parts Marked*)

Gasket, Gear Cover

Cap and Indicator, Oil Fill

Gasket, Oil Fill Cap

Gasket, Oil Base Mounting

Washer, Copper-Oil Filter

Adapter Mounting

Key 3

Key l&2

Oil Base to Block

(3/8-16 X1-1/4”)

Oil Filter Adapter Mounting

(5/16-18 X1“)

Gear Cover Mounting

(5/16-18 X1-3/4”)

Gear Cover Mounting

(5/16-18 X2-1/4”)

Oil Pump Mounting

(1/4-20 Xl“)

37

REF. PART QTY.

NO. NO. USED

—— —

17

18

19

20

21

22

23

24

25

26

27

WASHER, LOCK

850+050 4

850-0045 5

850-0040 2

505-0110 1

509-0040

516-0141 ;

123-1149 .1

141-0078 1

122-0320 1

122-0323 1

122-0321 1

309-0237 1

120-0491 1

28 120-0648 1

29 801-0048 1

30 120-0140 1

31 120-0398 1

32 120-0161 1

33 526-0066 1

34 815-0046 2

35 ‘821-0018 2

36 122-0347 1

PART

DESCRIPTION

011 Base Mounting (3/8” )

Gear Cover Mounting (5/16”)

Oil Pump Mounting (l/4’r)

Plug (3/8”), Oil Drain

“Seal, Gear Cover

Pin (5/16 xl-I/8”) -

Gear Cover

Tube, Oil Fill

Gasket, Oil Fill Tube

Mounting

Adapter, C)il fill

Filter, Oil (Spin-on)

Gasket, Oil Filter Adapter

Switch, Oil Light

Pump, Oil Complete

(NOTE: Internal parts not

sold separately)

Intake, Oil Pump (Includes

Cup, Screen and Pipe)

Screw (3/6-24 x3/4”) -

Oil By-Pass

Spring, Oil By-Pass Valve

Valve, Oil By-Pass

Gasket Kit, Oil Pump

Washer, Oil Pressure Relief

Valve

“Screw (8-32 x3/8”),

Pan Head

Screw (1/4-20 x5/8”),

Self Locking -Oil Fill

Tube Mounting

Gasket, Oil Filter

“-Included in Gear Cover Assembly.

10

,12

1 1~

@

362,4 .“

32 1Aam:

4W

‘@

7

28

II

1,

e

‘% 1“

.‘. ......

I‘“’ 13

FUEL

REF. PART

NO. NO.

——

20 520-0526

21 654-0017

QTY.

USED

REF. PART QTY. PART PART

DESCRIPTION

Stud, Carburetor Mounting

Washer (5/16”), Shakeproof I.T. -

Carburetor Mounting

Nut (5/16-24), Jam -

Carburetor Mounting

Screw (10-32 x5/16”),

Fillister Head -Air Inlet

Mounting

Adapter, Air Inlet

Gasket, Air Inlet

Screw (10-32 x5/16”) -

Choke Bracket Mounting ‘

Clamp Assembly -Air Cleaner

Cover, Air Cleaner Inlet

Element, Air Cleaner

Cover, Air Cleaner Outlet

Clamp (2”), Air Inlet

Inlet, Air

Bracket, Air Cleaner

Washer, Flat -Air Cleaner

Bracket Mounting

Screw (10-32 x5/8”) -Air

Cleaner Bracket Mounting

Clamo (1-7/8”), Air Inlet

NO. NO. USED DESCRIPTION

——

T149-1318 1“PumD. Fuel 2

2

2800-0054 2

3149-0003 2

4503-0669 1

5502-0388 1

6141-0689 1

7503-0301 2

9WASHER, LOCK

850-0030 3

850-0050 2

850-0030 2

Screw (3/8-16 x2“) -Intake

Manifold Mounting

Gasket, Fuel Pump Mounting

Line, Fuel Pump to Carburetor

Elbow, Carburetor Inlet

(Restricted)

‘Carburetor

Clamp, Rubber Hose

22 868-0002 2

23 815-0199 3

.24 145-0398

25 140-0921

26 813-0097

1

1

2

Air Inlet Mounting (#lo)

Intake Manifold Mounting

(3/8” )

Air Cleaner Bracket

Mounting (#10)

Choke Bracket Mounting (3/8”)

Gasket, Carburetor Mounting

Bracket, Choke

Manifold, Intake

Gasket, Intake Manifold’

Spacer, Fuel Pump Mounting

Clip, Throttle Cable

Elbow, Street (2) Fuel Pump

(1) Carburetor

Tee, Carburetor Inlet

Screw (1/4-20 x1-1/4”) -

Fuel Pump Mounting

27 140-1073

28 140-1094

29 140-1071

30 140-1135

31 503-0311

32 140-1075

33 140-1133

34 526-0234

1

1

1

1

1

1

1

2

850-0030

10 141-0281

11 153-0453

12 154-0951

13 154-0013

14 149-0045

16 518-0176

17 502-0313

2

1

1

1

2

1

2

335 815-0178 2

36 503-0004 1

18 502-0058

19 806-0009 1

2Hose’ ‘,

“-For Components, see separate group.

38

-. ,,’

;

.,

;- .

.’

FUEL PUMP PARTS GROUP

REF.

NO.

4

5

6

;

9

10

11

12

13

14

15

16

17

18

PART

NO.

149-1318

149-0526

815-0148

815-0147

149-0096

149-0095

149-0562

149-0672

140-0539

149-0675

516-0113

149-0710

149-0858

149-1042”

509-0065

149-1044

149-0003

518-0129

(xv. PART

USED DESCRIPTION

TPump, Fuel (Complete)

1Repair Kit (Includes Parts

Marked ‘)

1Body (Not Sold Separately)

4Screw (#8-32 x7/8”),

Machine

2Screw (#6-32 x5/8”),

Phillips -Retainer

2‘Valve and Cage

2●Gasket, Valve

1●Diaphragm Assembly

1“Spring

1Retainer, Valve Cage

1“Spring

1Pin, Rocker Arm

1Body (Not Sold Separately)

1Link and Arm, Rocker (Sold

only as a set)

1*Gasket, Diaphragm -Lower

Side

1ALever, Primer

2ASeal, “O” Ring

1ASpring, Primer Lever

1‘Gasket, Pump Mounting

1ARing, Retainer -Primer

Lever

“-Parts Included in Repair Kit.

A-Not used Key 3.

,.

,,.

39”

.

CARBURETOR PARTS GROUP

REF. PART

NO. NO.

——

141-0689

141-0747

141-0748

141-0281

1 141 -G708

2141-0741

3141-0698

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

141-0706

141-0705

141-0661.

141-0830

141-0696

141-0703

141-0702

141-0701

141-0700

141-0711

141-0713

141-0710

141-0077

141-0712

141-0742

141-0699

141-0697

141-0203

141-0709

141-0799

QTY. PART

USED DESCRIPTION

1. Carburetor, Gasoline

1Repair Kit (Includes Parts

Marked “)

1Gasket Kit (Includes Parts

Marked E)

1CGasket, Carburetor Flange

1Bowl, Fuel

1.Plate, ”Choke

4Screw and Washer -Choke

and Throttle Plate

Mounting

1Plate, Throttle

1‘Retainer, Seal

1Z’Seal, Rubber

1“Valve Seat Assembly, Fuel

1Washer, Fuel Valve Seat

1“Shaft, Float

1Float Assembly

1VGasket, Bowl to Body

1Screw, Throttle Stop

1Spring, Throttle Stop

1Needle, Idle Adjusting

1Spring, Idle Needle

1f“Washer, Main Jet Assembly

1Jet Assembly, Main

1Shaft and Lever, Choke

1Washer

1~Seal, Felt

1“Retainer, Felt Seal

1Shaft and Lever, Throttle

1“Spring, Float

&

17,

“-Parts contained in Repair Kit.

f - Parts contained in Gasket Kit.

,

,

?.

,-

,..

.-

<.,

.!

/-

. ...

-..._.

IGNITION GROUP -/’+’

4

‘u /12

,\

REF. PA RT

NO. NO.

—_

1160-0930

2160-0150

3160-0075

4160-0002

5509-0035

P

17

6312-0069

7167-0188

08160-0043

10 160-0265

QTY. PART

USED DESCRIPTION

1“Cover, Breaker Box

1“Gasket, Breaker Box Cover

1“Cam, Point Gap Adjusting

1 $ .Point Set, Breaker

1“’O”’Ring -Spark Plug Cables

1~“Condenser, Breaker Points

1Clip, Spark Plug Cables

1Gasket, Breaker Box Mounting

1.Plunger

11 167-1464 1Cable (23-1,2”), Spark Plug -

y

,- )—1 2

..

..A< -’3

.7~ Right Side

166-135#fl (Coil, Ignition [~~c!hb YA#Z/

167-t463@~ ;Cable (19”), Spark Plug -

-&/>

dLeft Side

14 160-0264 1“Guide. plunger

15 167-0241 2Plug, Spark

16 160-0257 1BOX Assembly, Breaker

(Includes Parts Marked “)

17 160-0428 1‘Strap, Point Set to Terminal

Block

18 160-0349 1.Block and Terminal Assembly

19 850-0040 2.Washer (1/4’’ ),. Lock

’20 802-0034 2.. Screw(1/4-20 x3/4”) -’

Breaker Box Mounting

21 334-0028 1Wire, Lead

22 160-1165 1Bracket, Timing

23 518-0049 3%crew (8-32 x1/4”) -

Brea er Box

Z4 14[”baY z+~h !

“-Parts included in 160-0257 Breaker Box Assembly.

L5 P5u+?s@32tuz L+Whfhq~ Luk

2{ ILL-u l#9Y 2. t~p ”,’

trJ; L#

)ci’7.

iOVERNOR, STARTER AND BLOWER HOUSING GROUP

23

31

&

‘=42

,,..

(

\.

REF. PART QTY. “PART

NO. NO. USED DESCRIPTION

—— _

-----

., 1870-0053 2

‘.. 2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

(,”

JOINT, BALL

150-0639 2

150-0939 2

LINK, GOVERNOR

520-0187 1

520-0623 1

870-0131 2

150-1386 1

870-0065 1

150-1385 1

870-0131 2

150-0147 1

150-0098 1

821-0009 1

815-0104 1

152-0197 1

WASHER, FLAT

526-0006 1

526-0196 2

526-0018 1

516-0059 1

150-1384 1

134-0589

HOUSING, BLOWgR

134-2871 1

134-2622 1

Nut (10-32), Lock -Governor

;od

Key 3

Key l&2

Key 3

Key l&2

Nut (10-32), Keps -Governor

Ball Joint

Arm, Governor Pivot

Nut (5/16-18), Lock -Governor

Arm Pivot

Bracket, Throttle Control

Nut (10-32) -Governor

Control

Stud, Governor High Speed

Spring, Governor High Speed

Screw (1/4-20 x3/8”), Self

Locking -Governor Control

Arm

,Screw (8-32 x5/16”),

Fillester Head -Governor

Control Swivel

Swivel, Governor Control

Governor Control Swivel (#1z)

Governor Linkage (#10)

Governor Arm Pivot (1/4”)

Key, Hair Pin -Governor

Control Swivel

Bracket, Governor Control

Housing, Cylinder Air -Left

Key 3

Key l&2

REF. PART QTY. PART

NO. NO. USED DESCRIPTION

—— —-

19 HOUSING, CYLINDER Al~-RIGHT

134-2760 1Key 3

134-2500 1Key 2

134-2094 1Key 1

20 134-2131 1Baffle, Air -Key 1&2

21 122-0345 1Tube, Oil Filter Drain

22 520-0751 4Stud, Cylinder Air Housing

Mounting

23 870-0232 4Nut (1/4-20) -Cylinder Air

Housing Mounting

27 WASHER, LC)CK

850-0040 2Control Bracket Mounting (1/4”)

850-0050 3Starter Motor Mounting

(3/8” ) - Key 3

850-0050 5Starter Motor Mounting

(3/8”) -Key 1&2

28 MOTOR, STARTING (For Components, See Separate

Groups)

191-1052. 1

191-0922 1“

191-0734 1

29 191-0864 2

30 191-0854 1

31 SCREW, HEX CAP

800-0051 3

800-0051 2

102-0455 3

32 821-0009 2

33 191-1076 1

Key 3

Key 2

Key 1

Spacer, Starter Motor

Mounting -Key 1&2

Bracket, Starter Motor

Mounting”- Key 1&2

Starter Motor Mounting

(3/t3-16x 1-1/4”) -Key 3

Starter Motor to Bracket

(3/8-16 x1-1/4”) -Key 1&2

Starter Bracket Mounting

(3/8-16 x1-1/4”) -Key 1&2

Screw (1/4-20 x3/8”),

Self Locking -Governor

Control to Blower Housing

Seal, Starter Air -Key 3

T.

(.

(“

.

\.L

\

12 “,

T’

%“

I=-

.‘a$4$ 4

ft

,. /

5

;‘%

REF. PART

NO. NO.

1-

2191-0932

QTY.

USED PART

DESCRIPTION REF. PART QTY. PART

NO. ~. USED DESCRIPTION

1

1Flywheel and Ring Gear

Stator &Harness Assembly

(15 Amp Alternator) -Key 1

Regulator -Rectifier Assembly -

Key 1

Screw (10-32 x1-1/2”),

Round Head -Stator

Mounting

Washer (#1 O), Lock -

Stator Mounting

Connector

Connector

Stator &Harness Assemblv

11 191-0939 1Regulator Assembly -Key 2&3

12 815-0181 4Screw (10-32 x1/2”) -

Regulator and Rectifier

/-

3191-0886 1

3

Mo;nting

15 167-0188 1Clio, Stator Lead

4813-0108 16 323-0879 1’ Connector, Stator Leads

(2 Pins) -Key 2&3

17 323-0882 1Connector, Stator Leads

(3 Sockets) -Key 2&3

18. 323-0881 1Connector, Rectifier Leads

(3 Pins) -Key 2&3

19 323-0880 1Connector, Regulator Leads

(2 Sockets) -Key 2&3

20 323-0496 5Pin, Connector -Key 2&3

21 323-0488 5Socket, Connector -Key 2&3

5850-0030 3

6323-0853

7323-0851

~9191-1016

1

1

1

(20 Amp Alternator) -Key

2&3

10 191-0938 1Rectifier Assembly -Key 2&3

“-See Crankshaft and Flywheei Group for part number.

(“””--

,..

[L

1/11

I16 l— A

C2-)1 H

g8

19

1A 13 ~l. .

20 0

I18

12

191-0734 STARTER MOTOR PARTS GROUP -KEY 1~r

REF. PART

NO. NO.

—191-0734

1191-0742

2

3

4

5

6

7

8

9

10

11

12

13

14

15

191-0743

191-0744

191-0745

191-0746

191-0747

191-0748

191-0749

191-0750

191-0751

191-0752

191-0753

191-0754

191-0755

191-0756

QTY. PART

USED DESCRIPTION

1

1

1

1

1

1

1

1

1

1

1

,.

1

1

1

1

Motor Assembly, Starting

Yoke Assembly (Frame) -

Includes Parts Marked “

Armature

Clutch, Starter

Stop, Pinion

Ring

Washer, Plain

Bracket Assembly, Front

Lever Assembly

Spring, Lever (A)

Spring, Lever (B)

Holder, Spring

Bracket Assembly, Rear

Washer, Plain

Washer, Plain

Washer, Insulator

REF. PART QTY. PART

NO. NO. USED DESCRIPTION

T191=

17 191-0758

18 191-0759

19 191-0760

20 191-0761”

21 191-0762

22 191-0763

23 191-0764

24 191-0765

25 191-0766

26 850-0050

27 800-0051

4“Brush

.4 Spring, Brush

2Bolt, Through

3Screw, Machine P.H.

1Switch Assembly, Solenoid

1- “Coil Assembly, Field

1Bearing, Front

1Bearing, Rear

4“Pole Shoe

4‘Screw, Pan Head

2Washer, Lock -Starter Motor

Mounting

2Screw, Hex Cap -Starter

Motor Mounting

‘-Included in Yoke Assembly.

45

191-0922 STARTER MOTOR PARTS GROUP -KEY 2

REF. PART QTY. PART

NO. NO.

——

191-0922

1191-0983

2191-0984

3191-1010

4191-1011

5191-0987

USED DESCRIPTION

1Motor, Starting -Complete

1Lever Assembly

1Spring Set

1Bearing, Rear Bracket

Assembly

1Screw Set

1Switch Assembly

6191-0988 2Bolt, Through k. _

7191-0989 1Bracket Assembly, Front

(Includes Bearing)

8191-0990 1Bearing, Front Bracket

9191-0991 1Stopper Set, Pinion

10 191-1007 4SSpring, Brush

11 191-1008 -2fBrush. N@ative

12 191-1009 1Bracket A;sembly, Rear

(Includes Bearing)

13 191-0995 1Clutch Assembly

14 191-0996 1Armature -

15 191-0997 1Washer Set

16 191-1005 2Brush, Positive

17 191-1006 1Holder Assembly, Brush

(Includes Parts Marked E)

18 191-1001 1Field Coil Set (Includes

Positive Brush)

f - Parts included in 191-1006 Brush Holder Assembly.

46

f

..-

\.

191-1052 STARTER MOTOR PARTS GROUP -KEY 3

REF. PART QTY. PART

NO. NO. USED DESCRIPTION

—— _

191-1052

191-0983

191-0984

191-1010

1

1

1

1

Motor, Starting -Complete

Lever Assembly

Spring Set

1

2

3Beari;g, Rear Bracket

Assembly

Screw Set

Swdch Assembly

Bolt, Through

4

5

6

7

191-1011

191-0987

191-0988

191-1086

1

1

2

1BracketAss>mbly, Front

(Includes Bearing)

Bearing, Front Bracket

Stopper Set. Pinion

“Spring, Brush

“Bru&~, Negative

Bracket Assembly. Rear

(Includes Bearing)

Clutch Assembly

Armature -

Washer Set

Brush, Positive

Holder Assembly, Brush

(Includes Parts Marked “)

Field Coil Set (Includes

Positive Brushes)

8

9

10

11

12

191-0971

191-0991

191-1007

191-1008

191-1009

1

1

4

2

1

191-1087

191-1088

191-0997

191-1005

191-1006

13

14

15

16

17

1

1

1

2

1

18 191-1089 1

.-Parts Included in 191-1006 Brush Holder Assembly,

SERVICE KITS AND MISCELLANEOUS

NOTE: For other kits. refer to the group for the

part in question.

REF. PART OTY. PART

NO. NO. USED

—— — DESCRIPTION

Gasket Kit, Compfete Engine

Ignition Tune-Up Kit

Carbon Removal Gasket Kit

-168-0103 1

160-0836 1

168-0095 1

522-0267 1Kit, Overhaul

-CAmlON –

REGULXTORMUST BE

VR1 GROUNOLDTHROUGH

MOUNTING OOLTs

MOuKrED8WIMD

q

VOLT

OLM:R UWXL REG ~

RFLT

.“Q*, ”;

M.ALm’

ALT J2

SfATOR JI -- TO

SI -- TO

-- TO

=-- To

START SWITCH

BATTERY --

OIL PRESS LIGHT

IGNITION ‘

-n

T-.-— F:y

~~-j

--

El n

J.1

.

●PARTs LIST REF

REF OES PARTNO. OTY DESCRIPTION”

81 1STARIERLSOLENOIO-Et/GINE

BT1 1BATTERY.12 V

Elt2 2SPARKPLIM

GI 1ALTERNATOR-FLYWHEEL15 AsIP

ICONN[C1OR

:; 1CONNECTOR

SI ISW ITCH-LOW OIL PRESS

S2 IBREAKER & CAP ASSEMBLY

TI 1 IGNITION COIL-(ONAN)

VR1 1“ fl[GuLATOR-flfCTIF IER-VOllAE

FNCINF WI QIMc nlACOAM .unmet --”r. ,... i-n .-n

C

.-

-------- .. .... ..- w,r-l~ m-,-, -*.l WUI=L LLKD-m>f L-i Lu

48

. .

----

1

i,

,-.

I

/-

~

\--

MouKKD iWWAEI

OLWER UHECL

JI

I-- -TO START SWITCH

-- TO BRTTERY

SI -- ‘TO OIL PRESS LIGHT

=.-- TO IGNITION

AA TI

BL -

@

A

xx IL

=sb

g-l= ;.

~~ ‘&j”-’”

.-

RECT REG

CRI VRI El C2

11

. .

PARTS LIST REF

R[F 0[S PARTtAO. OTY OISCRIPTION

81 1STARTERLSOLENOiO-ENGINE

ETI 1EATT[RY, 12 V

tRl \RECTIFIERRSSY

EIL2 2SPARKPLUG

IALTERNATI)R-FLYIHEEL20 AUP

ICONNECTOR

ISWITCH-LOW”OIL PRESS

16REAKERtCkF’ASSEUEIY

1IGNITION COIL-( ONAN)

IffESUIATOR-V0L7Alc[

E

G1

JI

SI

S2

TI

VR

ENGINE WIRING DIAGRAM -MODEL CC KB-t4S/2440H AND CC KB-MS!2733J