Workshop Manual GALANT Mitsubishi Rear Suspension 34

User Manual: Mitsubishi Galant Workshop Rear Suspension Manual Troubleshoot Mitsubishi Galant Workshop Rear Suspension |

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34-1

REAR

SUSPENSION

CONTENTS 34109000145

GENERAL INFORMATION 2..................

SERVICE SPECIFICATIONS 3.................

SPECIAL TOOLS 3..........................

ON-VEHICLE SERVICE 4.....................

Wheel Alignment Check and Adjustment 4.......

Ball Joint Dust Cover Check 4..................

REAR SUSPENSION ASSEMBLY 5...........

UPPER ARM ASSEMBLY 7...................

TRAILING ARM ASSEMBLY 9................

LOWER ARM AND TOE CONTROL ARM

ASSEMBLIES 10............................

SHOCK ABSORBER ASSEMBLY 13.........

STABILIZER BAR 16........................

REAR SUSPENSION - General Information

34-2

GENERAL INFORMATION 34100010192

The rear suspension is a multi-link suspension,

which has been used for the previous models. The

layout of each arm and the rigidity balance of each

bushing have been rationalized to provide both

excellent steering stability and riding comfort.

COIL SPRING

Items Sedan Wagon

Wire diameter ´average diameter ´

free length mm

9¢62 - 102 ¢397,

9¢94 - 102 ¢330*1,

9-10¢63 - 103 ¢386*2

9-10¢63 - 103 ¢405,

10 ¢95 - 103 ¢321*1,

10 - 11 ¢64 - 104 ¢383*2

NOTE

*1: Self-leveling shock absorber

*2: Heavy-duty suspension

CONSTRUCTION DIAGRAM

Shock absorber

Knuckle

Crossmember

Upper arm

Toe control arm

Lower arm

Trailing arm

REAR SUSPENSION - Service Specifications/Special Tools 34-3

SERVICE SPECIFICATIONS 34100030174

Items Specifications

Toe-in At the centre of tyre tread mm 3±3

Toe-angle (per wheel) 0_09’ ±09’

Camber -1_00’ ±30’

Dimension for positioning upper arm bracket mm 37.2 ±2

Toe control arm ball joint turning torque Nm 1.0 - 2.6

Stabilizer link ball joint turning torque Nm 0.5 - 1.5

SPECIAL TOOLS 34100060159

Tool Number Name Use

MB990635,

MB991113 or

MB991406

Steering linkage puller Ball joint and knuckle disconnec-

tion

MB990326 Preload socket Ball joint continuous rotating

check

MB990800 Ball joint remover and

installer

Ball joint dust cover installation

A

B

A: MB991237

B: MB991239

A: Spring compressor

body

B: Arm set

Coil spring compression

REAR SUSPENSION - On-vehicle Service

34-4

ON-VEHICLE SERVICE 33100100106

WHEEL ALIGNMENT CHECK AND

ADJUSTMENT

TOE-IN

Standard value:

At the centre of tyre tread 3 ±3mm

Toe angle (per wheel) 0_09’±09’

Turn the toe control arm mounting bolts of the left and right

toe control arms by equal amounts to adjust.

LH: Clockwise viewed from the rear ®Toe-out

RH: Clockwise viewed from the rear ®Toe-in

Furthermore, toe adjustment can be mode at graduations

of approximately 2.5 mm

CAMBER

Standard value: -1_00’ ±30’

NOTE

1. Camber is preset at the factory and can not be adjusted.

2. If camber is not within the standard value, check and

replace bent or damaged parts.

BALL JOINT DUST COVER CHECK 34101280011

1. Check the dust cover for cracks or damage by pushing

it with finger.

2. If the dust cover is cracked or damaged, replace the

toe control arm assembly or stabilizer link.

NOTE

Cracks or damage of the dust cover may cause damage

of the ball joint.

Crossmember

REAR SUSPENSION - Rear Suspension Assembly 34-5

REAR SUSPENSION ASSEMBLY 34100330113

REMOVAL AND INSTALLATION

Pre-removal Operation

DBrake Fluid Draining <Vehicles with drum brake>

DRear Seat Removal <Sedan>

(Refer to GROUP 52A.)

DRetractor Trim Removal <Wagon>

(Refer to GROUP 52A.)

DCenter Exhaust Pipe Removal

(Refer to GROUP 15.)

Post-installation Operation

DCenter Exhaust Pipe Installation

(Refer to GROUP 15.)

DRetractor Trim Installation <Wagon>

(Refer to GROUP 52A.)

DRear Seat Installation <Sedan>

(Refer to GROUP 52A.)

DParking Brake Lever Stroke Check

(Refer to GROUP 36 - On-vehicle Service.)

DBrake Line bleeding <Vehicles with drum brake>

(Refer to GROUP 35A - On-vehicle Service.)

DWheel Alignment Check and Adjustment

(Refer to P.34-4.)

1

2

3

4

5

6

7

8

9

10

11

12 13

44 Nm

39 Nm

137 - 157 Nm*

15 Nm

100 Nm

88 Nm

Removal steps

1. Cap

2. Shock absorber mounting nuts

AA"3. Brake caliper assembly

4. Brake disc or brake dram

5. Shoe and lining assembly (Refer to

GROUP 36 - Parking Brake

Drum.)

6. Parking brake cable connection

(Refer to GROUP 36.)

7. Brake hose connection <Vehicles

with drum brake>

8. Upper arm mounting bolts

9. Grommet

10. Trailing arm mounting bolt

AB"11. Crossmember mounting nuts

12. Rear wheel speed sensor connec-

tor connection <Vehicles with ABS>

13. Rear suspension assembly

Caution

*: Indicates parts which should be temporarily

tightened, and then fully tightened with the

vehicles on the ground in the unladen condition.

REAR SUSPENSION - Rear Suspension Assembly

34-6

REMOVAL SERVICE POINT

AA"BRAKE CALIPER ASSEMBLY REMOVAL

Secure the removed caliper assembly with wire, so that it

does not fall.

AB"CROSSMEMBER MOUNTING NUT REMOVAL

Hold the crossmember with a garage jack or transmission

jack to remove a crossmember mounting nut.

REAR SUSPENSION - Upper Arm Assembly 34-7

UPPER ARM ASSEMBLY 34100360082

REMOVAL AND INSTALLATION

Post-installation Operation

Wheel Alignment Check and Adjustment

(Refer to P.34-4.)

39 Nm

98 Nm*

57 Nm

57 Nm

1

2

3

4

5

Removal steps

1. Upper arm and knuckle connecting

bolt

2. Upper arm assembly mounting

bolts

3. Upper arm assembly

"AA4. Upper arm bracket

5. Upper arm

Caution

*: Indicates parts which should be temporarily

tightened, and then fully tightened with the

vehicles on the ground in the unladen condition.

REAR SUSPENSION - Upper Arm Assembly

34-8

INSTALLATION SERVICE POINT

"AAUPPER ARM BRACKET INSTALLATION

Install the upper arm bracket that the dimension shown in

the illustration is at the standard value.

Standard value (A): 37.2 ±2mm

NOTE

Refer to distances B and C shown in the illustration to check

the installation angle of the upper arm bracket.

BCB

C

B: 220.1 mm

C: 274.4 mm

Upper arm

Upper arm bracket

A

REAR SUSPENSION - Trailing Arm Assembly 34-9

TRAILING ARM ASSEMBLY 34100420162

REMOVAL AND INSTALLATION

Post-installation Operation

Wheel Alignment Check and Adjustment

(Refer to P.34-4.)

137 - 157 Nm*

1

2

345

118 - 137 Nm*

Removal steps

1. Knuckle and trailing arm assembly

connecting bolt

2. Grommet

3. Trailing arm assembly mounting

bolt

4. Stopper

5. Trailing arm assembly

Caution

*: Indicates parts which should be temporarily

tightened, and then fully tightened with the

vehicles on the ground in the unladen condition.

REAR SUSPENSION - Lower Arm and Toe Control Arm Assemblies

34-10

LOWER ARM AND TOE CONTROL ARM ASSEMBLIES 34100450086

REMOVAL AND INSTALLATION

Post-installation Operation

DCheck the Dust Cover for Cracks or Damage by

Pushing it with Finger

DWheel Alignment Check and Adjustment

(Refer to P.34-4.)

67 - 98 Nm*

98 Nm* 28 Nm

39 Nm

12

3

4

5

6

7

8

98 Nm*

8

2

Lower arm assembly removal steps

1. Stabilizer link connection

2. Wheel speed sensor mounting

bolts

3. Lower arm assembly and knuckle

connecting bolt

4. Lower arm assembly mounting bolt

5. Lower arm assembly

Toe control arm assembly removal

steps

AA"6. Toe control arm and knuckle con-

nection

AB"7. Toe control arm assembly mounting

bolt

8. Toe control arm assembly

Caution

*: Indicates parts which should be temporarily

tightened, and then fully tightened with the

vehicles on the ground in the unladen condition.

REAR SUSPENSION - Lower Arm and Toe Control Arm Assemblies 34-11

REMOVAL SERVICE POINTS

AA"TOE CONTROL ARM AND KNUCKLE

DISCONNECTION

Caution

1. Use the special tool to loosen the nut only; do not

removal it from the ball joint.

2. Tie the special tool with a cord not to let it fall off.

AB"TOE CONTROL ARM ASSEMBLY MOUNTING

BOLT REMOVAL

Place mating marks on the crossmember and the plate before

removing the bolt.

INSPECTION 34100460096

TOE CONTROL ARM BALL JOINT TURNING TORQUE

CHECK

1. After shaking the ball joint stud several times, install the

nut to the stud and use the special tool to measure the

turning torque of the ball joint.

Standard value: 1.0 - 2.6 Nm

2. When the measured value exceeds the standard value,

replace the toe control arm assembly.

3. When the measured value is lower than the standard

value, check that the ball joint turns smoothly without

excessive play. If so, it is possible to use that ball joint.

TOE CONTROL ARM BALL JOINT DUST

COVER CHECK 34101290014

1. Check the dust cover for cracks or damage by pushing

it with finger.

2. If the dust cover is cracked or damaged, replace the

toe control arm assembly.

NOTE

Cracks or damage of the dust cover may cause damaged

of the ball joint. When it is damaged during service work,

replace the dust cover.

MB990635,

MB991113 or

MB991406

Nut

Cord

Ball joint

Plate

Mating marks

MB990326

MB990800

Dust cover

Snap ring

REAR SUSPENSION - Lower Arm and Toe Control Arm Assemblies

34-12

TOE CONTROL ARM BALL JOINT DUST

COVER REPLACEMENT 34101080062

Only when the dust cover is damaged accidentally during

service work, replace the dust cover as follows:

1. Remove the dust cover.

2. Apply multipurpose grease to inside and lip of the dust

cover.

3. Using the special tool, press the dust cover until it contacts

the snap ring.

4. Check the dust cover for cracks or damage by pushing

it with finger.

REAR SUSPENSION - Shock Absorber Assembly 34-13

SHOCK ABSORBER ASSEMBLY 34100510159

REMOVAL AND INSTALLATION

Pre-removal and Post-installation Operation

DRear Seat Removal and Installation <Sedan>

(Refer to GROUP 52A.)

DRetractor Trim Removal and Installation <Wagon>

(Refer to GROUP 52A.)

44 Nm

98 Nm

1

2

3

4

Removal steps

1. Cap

2. Shock absorber mounting nuts

3. Bolt

"AA4. Shock absorber assembly

INSTALLATION SERVICE POINT

"AASHOCK ABSORBER ASSEMBLY INSTALLATION

Install the shock absorber so that the larger diameter side

of the lower bushing inner pipe faces toward the outside

of the vehicle.

Outside of

the body

Lower bushing

inner pipe

REAR SUSPENSION - Shock Absorber Assembly

34-14

DISASSEMBLY AND REASSEMBLY 34100530117

23 Nm

12

3

4

5

8

6

7

9

11

10

12

Disassembly steps

AA""

CA1. Self-locking nut

2. Washer

3. Upper bushing A

"BA4. Upper bracket assembly

5. Upper spring pad

6. Collar

7. Upper bushing B

8. Cup assembly

9. Bump rubber

10. Dust cover

"AA11. Coil spring

12. Shock absorber assembly

DISASSEMBLY SERVICE POINT

AA"SELF-LOCKING NUT REMOVAL

1. Use the special tools to compress the coil spring.

Caution

(1) Install the special tools evenly, and so that the

maximum length will be attained within the

installation range.

(2) Do not use an impact wrench to tighten the special

tool bolt.

2. While holding the piston rod, remove the self-locking nut.

Caution

Do not use an impact wrench.

MB991239

MB991237

REAR SUSPENSION - Shock Absorber Assembly 34-15

REASSEMBLY SERVICE POINTS

"AACOIL SPRING INSTALLATION

1. Install the special tool in the same manner as for removal,

and compress the coil spring to install the shock absorber.

Caution

Do not use an impact wrench to tighten the special

tool bolt.

2. Align the edge of the coil spring to the stepped part of

the shock absorber spring seat.

"BAUPPER BRACKET ASSEMBLY INSTALLATION

Install the upper bracket assembly so that the lower bushing

inner pipe of the shock absorber is at the shown position.

"CASELF-LOCKING NUT INSTALLATION

1. Temporarily tighten the self-locking nut.

2. Remove the special tools (MB991237, MB991239), and

tighten the self-locking nut to the specified torque.

Caution

Do not use an impact wrench.

Coil spring

edge

Spring seat

Lower bushing

inner pipe

REAR SUSPENSION - Stabilizer Bar

34-16

STABILIZER BAR 34100560109

REMOVAL AND INSTALLATION

Post-installation Operation

Check the Dust Cover for Cracks or Damage by Pushing

it with Finger.

39 Nm

39 Nm

44 Nm

1

2

3

4

5

1

Removal steps

1. Stabilizer link mounting nuts

2. Stabilizer link

"AA3. Stabilizer bar bracket

"AA4. Bushing

"AA5. Stabilizer bar

INSTALLATION SERVICE POINT

"AASTABILIZER BAR/BUSHING/STABILIZER BAR

BRACKET INSTALLATION

Position the stabilizer bar identification mark to the left side.

Adjust the identification mark position as shown in the figure,

and tighten the stabilizer bar bracket mounting bolt.

Approx. 20 mm

Outside of

the body

REAR SUSPENSION - Stabilizer Bar 34-17

INSPECTION 34100570119

STABILIZER LINK BALL JOINT TURNING TORQUE

CHECK

1. After shaking the ball joint stud several times, install the

nut to the stud and use the special tool to measure the

turning torque of the ball joint.

Standard value: 0.5 - 1.5 Nm

2. When the measured value exceeds the standard value,

replace the stabilizer link.

3. When the measured value is lower than the standard

value, check that the ball joint turns smoothly without

excessive play. If so, it is possible to use that ball joint.

STABILIZER LINK BALL JOINT DUST COVER CHECK

34101300014

1. Check the dust cover for cracks or damage by pushing

it with finger.

2. If the dust cover is cracked or damaged, replace the

stabilizer link.

NOTE

Cracks or damage of the dust cover may cause damage

of the ball joint. When it is damaged during service work,

replace the dust cover.

STABILIZER LINK BALL JOINT DUST COVER

REPLACEMENT 34101090089

Only when the dust cover is damaged accidentally during

service work, replace the dust cover as follows:

1. Remove the clip ring and the dust cover.

2. Apply multipurpose grease to the lip and inside of the

dust cover.

3. Use plastic tape on the stabilizer link threads as shown

in the illustration, and then install the dust cover to the

stabilizer link.

4. Secure the dust cover with the clip ring.

When installing the clip ring, align the ends at a 90_

angle from the axis of the stabilizer link.

5. Check the dust cover for cracks or damage by pushing

it with finger.

MB990326

Clip ring

Plastic tape

Approx. 90_

Clip ring ends (180_on

opposite side also possible)

NOTES