Isuzu 4JB1 Engine Specifications

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4JB1 > MAIN SPECIFICATIONS:

Type 4 Cylinder, 4 Cycle, Water Cooled, OHV, Direct Injected

Bore & Stroke 3.7 x 4.0 in. (93 mm x 102 mm)

Piston Displacement 169 cu. in. (2.8 liter)

Compression Ratio 18.2:1

Dry Weight 524 lbs. (238 kg)

Dimensions - L x W x H 31.7 x 23.3 x 29.5 in.

(805 x 590 x 750 mm)

Coolant Capacity (Block) 5.3 qts. (5.0 liter)

Lube Oil Capacity 5.8 qts. (5.5 liter)

Engine Rotation Direction Counter Clockwise From Flywheel

MAIN FEATURES: STANDARD:

Alternator A.C. 12V-35A

Voltage Regulator Integral w / Alt.

Starter 12V- 2.2 kW Gear Reduction

Exhaust Outlet Vertical-Up-Rear

Air Inlet Vertical-Up-Center

Flywheel Housing SAE #4

Flywheel For 10" Overcenter Clutch 2 Piece

Oil Pan Center Sump-35° Inclination

Water Outlet Vertical

Fan 15 in. (380 mm) Blower

INDUSTRIAL RATING*

Intermittent 70 BHP @ 3000 RPM

Continuous 61 BHP @ 3000 RPM

Max Torque 132 lb.-ft. @ 2000 RPM

*SAE J1995 Gross BHP

Specifications subject to change without notice.

*SAE J1995 Gross BHP

Specifications subject to change without notice.

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Fuel Specific Gravity: 0.825

NOTE: Muffler & Air Cleaner not installed

NOTE: Muffler & Air Cleaner not installed

SPECIAL FEATURES:

* Direct Injection

* Glow Plug Starting Assist

* Replaceable Cromard Dry Liners

Power Curve > 4JB1

A - 132 LB-FT INTERMITTENT

B - 116 LB-FT CONTINUOUS

C - 70 BHP INTERMITTENT

D - 61 BHP CONTINUOUS

Rated within 5% at ambient conditions of:

Temperature: 77° F (25°C)

Pressure: 29.31 "Hg (99kPa) DRY

Fuel Specific Gravity: 0.825

Intermittent Rating: (Solid Line)

Continuous Rating: (Dashed Line)

NOTE: Muffler & Air Cleaner not installed

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