Mitsubishi Evolution X. Manual — part 905

UPPER ARM ASSEMBLY

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REAR SUSPENSION

34-21

UPPER ARM ASSEMBLY

REMOVAL AND INSTALLATION

M1341003600379

CAUTION

• Do not damage the upper arm ball joint dust cover during maintenance. If it is damaged, replace

the upper arm ball joint dust cover (

P.34-22

).

• The part indicated by

*1

should be temporarily tightened, and then fully tightened with the vehicle

standing on the ground and the curb weight condition.

•

Pre-removal operation
• Fuel Filler Neck Removal (Refer to GROUP 13B, Fuel

Tank

P.13B-10

.) (LH only)

Post-installation operation
• Check the ball joint dust cover for cracks or damage by

pushing it with your finger.

• Fuel Filler Neck Installation (Refer to GROUP 13B, Fuel

Tank

P.13B-10

.) (LH only)

• Wheel Alignment Check and Adjustment (Refer to

P.34-9

.)

AC705361AB

39 ± 6 N·m
29 ± 4 ft-lb

71 ± 10 N·m
52 ± 7 ft-lb

1

2

AC705362 AB

3

9

4

7

5

6

8

9

8.5 ± 1.5 N·m
76 ±13 in-lb

11 ± 2 N·m
98 ± 17 in-lb

110 ± 11 N·m
81 ± 8 ft-lb

110 ± 11 N·m
81 ± 8 ft-lb

39 ± 6 N·m
29 ± 4 ft-lb

*2

*2

*1

*1

*2

Specified grease: Multipurpose grease
SAE J310, NLGI No.2 or equivalent

Removal steps

1.

Stabilizer link and stabilizer bracket
connection

2.

Stabilizer bracket

3.

Rear wheel speed sensor

4.

Upper arm and knuckle connection

5.

Brake hose clip (RH side) (RH only)

6.

Brake tube (RH side) and clip
connection (RH only)

7.

Brake tube (LH side) and clip
connection (LH only)

8.

Brake tube (Center side) and clip
connection (LH only)

9.

Upper arm assembly

The parts indicated by

*2

are the bolts and nut with friction coefficient stabilizer. In removal, ensure

there is no damage, clean dust and soiling from the bearing and thread surfaces, and tighten them
to the specified torque.

Removal steps (Continued)

UPPER ARM ASSEMBLY

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REAR SUSPENSION

34-22

UPPER ARM BALL JOINT ROTATION STARTING
TORQUE CHECK

M1341021600018

Required Special Tool:

• MB991006: Preload socket

.

AC705371AB

MB991006

1. Move the upper arm ball joint stud back and forth for several

times, then measure the upper arm ball joint rotation starting
torque using the special tool MB991006.

Standard value: 3.4 N

⋅ m (30.0 in-lb) or less

2. When the measured value exceeds the standard range,

replace the upper arm assembly.

3. Even if the measured value is within the standard value,

check that the upper arm ball joint has no looseness or gritty
feeling. If there is no looseness or gritty feeling, it is judged
as usable.

UPPER ARM BALL JOINT DUST COVER
INSPECTION

M1341019700029

Refer to

P.34-10

.

UPPER ARM PILLOW BALL BUSHING ROTATION
TORQUE CHECK

M1341021700015

Required Special Tool:

• MB990326: Preload socket

.

AC705383 AB

MB990326

1. Insert the bolt to the upper arm pillow ball bushing, and

install the nut with the washer from the opposite side. Rotate
the inner cylinder (including washer) for several turns, and
measure the rotation starting torque of the upper arm pillow
ball bushing using the special tool MB990326.

Standard value: 1.5 N

⋅ m (13.2 in-lb) or less

2. When the measured value exceeds the standard range,

replace the upper arm assembly.

3. Even if the measured value is within the standard value,

check that the upper arm pillow ball bushing has no
looseness or gritty feeling. If there is no looseness or gritty
feeling, it is judged as usable.

UPPER ARM BALL JOINT DUST COVER
REPLACEMENT

M1341021800012

Required Special Tool:
MB990800: Ball Joint Remover and Installer
Only when the upper arm ball joint dust cover is damaged acci-
dentally during service work, replace the dust cover as follows:
1. Remove the upper arm ball joint dust cover.
2. Fill the specified grease in the upper arm ball joint dust

cover and lubricate the lip.

UPPER ARM ASSEMBLY

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REAR SUSPENSION

34-23

Specified grease: Multipurpose grease SAE J310,
NLGI No.2 or equivalent

Amount to use: Inside of upper arm ball joint dust

cover: 9.0

− 10.0 g (0.32 − 0.35 ounce)

Amount to use: lip part: as required

AC705368AB

MB990800

Dust cover

Snap ring

3. Using the special tool MB990800, punch the upper arm ball

joint dust cover until it contacts the snap ring.

4. Press the upper arm ball joint dust cover with your finger to

check that there are no cracks or damage in the dust cover.

SHOCK ABSORBER ASSEMBLY

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REAR SUSPENSION

34-24

SHOCK ABSORBER ASSEMBLY

REMOVAL AND INSTALLATION

M1341002500681

CAUTION

• The part indicated by

*1

should be temporarily tightened, and then fully tightened with the vehicle

standing on the ground and the curb weight condition.

•

Pre-removal and post-installation operation
• Trunk Room Trim Front Removal and Installation (Refer to

GROUP 52A, Trim

P.52A-11

.)

AC705404AB

2

3

45 ± 7 N·m
33 ± 5 ft-lb

1

71 ± 10 N·m
52 ± 7 ft-lb

*2

*1

*1

Removal steps

1.

Knuckle, lower arm and shock
absorber connecting bolt

2.

Shock absorber mounting nut

>>

A

<<

3.

Shock absorber assembly

The part indicated by

*2

is the nut and nut with friction coefficient stabilizer. In removal, ensure

there is no damage, clean dust and soiling from the bearing and thread surfaces, and tighten them
to the specified torque.

Removal steps (Continued)