Mitsubishi Lancer Evolution X. Manual - part 231

POWER STEERING GEAR BOX AND LINKAGE

TSB Revision

POWER STEERING

37-39

AC708302AB

4

57 ± 7 N·m
42 ± 5 ft-lb

3

10

8

11

6

2

N

N

12

15

13

5.0 ± 2.0 N·m
44 ± 18 in-lb

20 ± 5 N·m
15 ± 4 ft-lb

5

7

14

9

9

1

50 ± 5 N·m
37 ± 4 ft-lb

70 ± 10 N·m
52 ± 7 ft-lb

40 ± 8 N·m
30 ± 6 ft-lb

110 ± 11 N·m
81 ± 8 ft-lb

28 ± 4 N·m
21 ± 3 ft-lb

110 ± 11 N·m
81 ± 8 ft-lb

28 ± 4 N·m
21 ± 3 ft-lb

53 ± 8 N·m
39 ± 6 ft-lb

Removal steps 

1.

Steering column bolt (steering 
column shaft assembly and 
steering gear and linkage 
connection)

2.

steering column shaft 
assembly and steering gear 
and linkage connection

<<

A

>>

3.

Jam nut (Tie-rod end and 
knuckle connection)

4.

Eye bolt

5.

Pressure hose connection

6.

Gasket

7.

Return hose connection

8.

Rear roll stopper center bolt

9.

Front axle crossmember stay

<<

B

>>

10. Front axle crossmember
11. Rear roll stopper
12. Heat protector

>>

A

<<

13. Joint cover grommet
14. Flange bolt
15. Steering gear and linkage

Removal steps (Continued)

POWER STEERING GEAR BOX AND LINKAGE

TSB Revision

POWER STEERING

37-40

REMOVAL SERVICE POINTS

.

<<A>> JAM NUT (TIE-ROD END AND KNUCKLE 
CONNECTION) REMOVAL

CAUTION

• Loosen the jam nut (tie-rod end connection) from the 

ball joint, but do not remove here. Use the special tool.

• To prevent the special tool from dropping off, suspend 

it with a cord.

1. Install special tool MB991897 or MB992011 as shown in the 

figure.

2. Turn the bolt and knob to make the special tool jaws parallel, 

then hand-tighten the bolt. After tightening, check that the 
jaws are still parallel.
NOTE: To adjust the special tool jaws to be parallel, set the 
orientation of the knob as shown in the figure.

3. Unscrew the bolt to disconnect the ball joint.

.

<<B>> FRONT AXLE CROSSMEMBER REMOVAL 

1. Jack up and support the crossmember, and remove it.
2. Check the hoses and harnesses for roughness, and then 

remove the front suspension crossmember with the rear roll 
stopper and the steering gear and linkage installed.

AC208247AJ

Cord

Bolt

MB991897
or
MB992011

Nut

Ball joint

AC104739AB

Parallel

Knob

Bolt

Correct

Wrong

AC609888

Piece of wood

Transmission jack

AB

POWER STEERING GEAR BOX AND LINKAGE

TSB Revision

POWER STEERING

37-41

INSTALLATION SERVICE POINT

.

>>A<< JOINT COVER GROMMET INSTALLATION

Install by aligning the marks of joint cover grommet and steer-
ing gear and linkage as shown in the figure.

INSPECTION

M1372011001423

PINION TOTAL ROTATION TORQUE CHECK

Required Special Tools:

• MB991006: Preload Socket

CAUTION

Secure the steering gear and linkage to the special mount-
ing point. Fixing the steering gear and linkage to another 
point could deform or damage the gear housing.

.

1. Using the special tool preload socket (MB991006) to rotate 

the pinion at a rate of one turn per 4 to 6 seconds, and then 
measure the pinion total rotation torque.

Standard value:  

Total rotation torque: 0.6 − 1.6 N⋅ m (5.3 − 14.2 in-lb) 

Torque fluctuation: 0.4N⋅ m (3.5 in-lb) or less

NOTE: 

.

•

During measurement, remove the bellows from the gear 
housing.

•

Rotate the pinion by 180

°

 in left and right directions from 

the neutral position, and measure the pinion total rotation 
torque.

2. If the measurement value is outside the standard value, 

replace the gear housing (Refer to 

P.37-42

).

AC609889 AB

Steering joint
cover assembly

Joint cover
grommet

Steering gear

Protrusion part

AC609890

MB991006

AB

POWER STEERING GEAR BOX AND LINKAGE

TSB Revision

POWER STEERING

37-42

DISASSEMBLY AND ASSEMBLY

M1372011101204

Required Special Tool:

• MB992209: Boot band clipping tool
• MB992249: Variable spanner

LUBRICATION AND SEALING POINTS

AC613524 AE

8

7

2

1

1

5

6

4

3

Flare nut

52 ± 2 N·m
38 ± 1 ft-lb

89 ± 9 N·m
65 ± 7 ft-lb

27 ± 2 N·m
20 ± 1 ft-lb

Disassembly steps 

1.

Feed pipe

>>C<<

2.

Jam nut

>>C<<

3.

Tie-rod end

4.

Clip

>>B<<

5.

Band

6.

Bellows

<<

A

>>

>>

A

<<

7.

Tie-rod

8.

Gear housing

Disassembly steps 

AC609895 AC

Sealant: 3M™ AAD Part No. 8663 or equivalent

Grease: Silicone grease