Mitsubishi Grandis. Manual - part 885

STRUT ASSEMBLY

FRONT SUSPENSION

33-7

DISASSEMBLY AND REASSEMBLY

M1332001300448

DISASSEMBLY SERVICE POINTS
<<A>> STRUT NUT (SELF-LOCKING NUT) 
REMOVAL

CAUTION

• Install special tool arm set (MB991238) evenly, 

and so that the maximum length will be 
attained within the installation range.

• Do not use an impact wrench to tighten the 

bolt of special tool spring compressor body 
(MB991237), otherwise the special tool will 
break.

1. Use following special tools to compress the coil 

spring.

• Arm set (MB991795)

• Spring compressor (MB991237)

 AC301981AC

75 ± 5 N·m

8

7

10

9

1

2

3

4

5

N

6

Disassembly steps

<<A>> >>C<<

1.

Strut nut (self-locking nut)

2.

Strut washer

3.

Strut insulator assembly

>>B<<

4.

Strut bearing

5.

Spring upper seat

6.

Spring upper pad

>>A<<

7.

Coil spring

8.

Spring lower pad

9.

Strut damper

<<B>>

10. Strut assembly

AC001085 AB

MB991238

MB991237

STRUT ASSEMBLY

FRONT SUSPENSION

33-8

CAUTION

Do not use an impact wrench to loosen the strut 
nut (self-locking nut), otherwise the strut inner 
piston rod locking nut will be loosened.

2. Use the following special tools to loose the strut 

nut (self-locking nut), and then remove it.

• Wrench (MB991681)

• Socket (MB991682)

<<B>> STRUT ASSEMBLY DISPOSAL

WARNING

Wear goggles when drilling to protect your 
eyes from flying metal debris.

The gas must be discharged from the strut assembly 
before discarding it. Place the strut assembly 
horizontally with its piston rod extended. Then drill a 
hole of approximately 3 mm in diameter at the 
location shown in the illustration and discharge the 
gas.

REASSEMBLY SERVICE POINT
>>A<< COIL SPRING INSTALLATION

1. Make sure that the coil spring is mounted in the 

spring lower pad.

2. Install the coil spring by aligning the coil spring 

lower end with the strut spring seat.

>>B<< STRUT BEARING INSTALLATION

CAUTION

Install the strut bearing so as not to be damaged.

>>C<< STRUT NUT (SELF-LOCKING NUT) 
INSTALLATION

1. Ensure that the bearing is seated correctly.

CAUTION

Do not use an impact wrench to tighten the bolt 
of special tool spring compressor body 
(MB991237), otherwise the special tool will break.

2. Install following special tools to the strut assembly 

same as its removal.

• Spring compressor (MB991237)

• Arm set (MB991238)

3. While the coil spring is being compressed by the 

special tools, temporarily tighten the strut nut 
(self-locking nut).

4. Align the hole in the strut spring lower seat with 

the hole in the spring upper seat.

AC302425

MB991681

MB991682

AD

AC207801

AC

 AC303435AC

Coil spring

Strut spring
seat

Spring
lower pad

AC001085 AB

MB991238

MB991237

STRUT ASSEMBLY

FRONT SUSPENSION

33-9

NOTE: 

Using a rod as shown facilitates the alignment.

5. Align lower end of the coil spring with the groove 

in the spring lower seat, and then loosen the 
special tools.

CAUTION

Do not use an impact wrench to tighten the strut 
nut (self-locking nut), otherwise the strut inner 
piston rod locking nut will be loosened.

6. Using the following special tools, tighten the strut 

nut (self-locking nut) to 75 

± 5 N⋅m.

• Wrench (MB991681)

• Socket (MB991682)

INSPECTION

M1332001400230

• Check the bearing for wear or rust.

• Check the rubber parts for damage or 

deterioration.

• Check the spring for deformation, deterioration or 

damage.

• Check the shock absorber for deformation.

AC303720 AC

Spring upper
seat

Rod

Strut spring
seat

AC302425

MB991681

MB991682

AD

LOWER ARM

FRONT SUSPENSION

33-10

LOWER ARM

REMOVAL AND INSTALLATION

M1332001600449

CAUTION

*

: Indicates parts which should be temporarily tightened, and then fully tightened with the vehicle on 

the ground in an unladen condition.

INSPECTION

M1332001700349

• Check the bushing for wear and deterioration.

• Check the lower arm for bend or breakage.

• Check all bolts for condition and straightness.

LOWER ARM BALL JOINT STARTING 
TORQUE CHECK

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

special tool preload socket (MB991006) to 
measure the starting torque of the ball joint.

Standard value: 0 

− 6.6 N⋅m

2. If the measured value is not within the standard 

value, or if the ball joint is difficult to turn or does 
not turn smoothly, replace the lower arm 
assembly.

Post-installation Operation
• Check the dust cover for cracks or damage by pushing it 

with your finger.

• Front Wheel Alignment Check and Adjustment (Refer to 

P.33-4

.)

AC301982

AC207103

AC302428 AC

2

4

3

5

123 ± 12 N·m

5

4

123 ± 12 N·m

1

108 ± 10 N·m

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

Removal steps

1.

Lower arm nut (self-locking nut)

2.

Lower arm bolt

3.

Lower arm nut

4.

Lower arm bolt

5.

Lower arm assembly

AC001091 AB

MB991006