Mitsubishi Lancer Evolution IX. Manual — part 324

POWER STEERING GEAR BOX AND LINKAGE

POWER STEERING

37-21

INSTALLATION SERVICE POINT
>>A<< JOINT COVER GROMMET INSTAL-
LATION

AC304922 AB

A

B

Joint cover
grommet

Steering gear

Align the joint cover grommet notch (arrow A) with
the steering gear lug (arrow B), and then install the
steering joint cover to the steering gear.

INSPECTION

M1372011000323

STEERING GEAR TOTAL PINION
TORQUE CHECK

CAUTION

When holding the steering gear in a vice, secure
its mounting positions. If it is secured in any
other place, the gear housing may become
deformed or damaged.

AC000996 AC

MB991006

1. Using special tool preload socket (MB991006),

rotate the pinion gear at the rate of one rotation in
approximately 4 to 6 seconds to check the total
pinion torque.

Standard value:

Total rotation torque 0.8

− 1.8 N⋅m

Torque fluctuation 0.49 N

⋅m or less

NOTE: Remove the bellows from the rack hous-
ing before measuring.
NOTE: Measure the total rotation torque by turn-
ing the special tool left and right 180

°

from the

neutral position.

2. If the standard values are not met, adjust the

pinion total rotation torque.

3. In case the adjustment is impossible, disassemble

and check the components, and repair if
necessary.

TIE ROD SWING RESISTANCE CHECK

1. Give 10 hard swings to the tie rod.

AC000997

2. Measure the tie rod swing resistance [tie rod

swing torque] with a spring balance.

Standard value: 8

− 27 N [1.5 − 4.9 N⋅m]

3. If the measured value exceeds the standard

value, replace the tie rod.

4. If the measured value is below the standard value,

the tie rod can be re-used if it swings smoothly
without excessive play.

TIE ROD END BALL JOINT DUST COVER
CHECK

1. Check the dust cover for cracks or damage by

pushing it with your finger.

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

the tie rod end (Refer to

P.37-22

).

NOTE: Cracks or damage of the dust cover may
damage the ball joint. If it is damaged during serv-
ice work, replace the dust cover (Refer to

P.37-30

).

POWER STEERING GEAR BOX AND LINKAGE

POWER STEERING

37-22

DISASSEMBLY AND REASSEMBLY

M1372011100290

<LH drive vehicles>

AC311001AB

3

13 ± 3 N·m

Steering gear seal kit

Flare nut

Repair kit grease

23

21

19

4

11 8

28

29

32

31

17

35

11

8

22 ± 4 N·m

59 ± 10 N·m

23 ± 2 N·m
-30˚

12

14

15

33

17

59 ± 10 N·m

25 ± 4 N·m

18

24

23

20

19

21

22

13

34

4

4

3

35

1

36

2

16

30

31

32

27

29

28

25

26

11

88 ± 10 N·m

10

8

9

7

5

6

52 ± 2 N·m

4

Disassembly steps

>>

O

<< 1.

Gear mounting rubber

2.

Gear housing mounting bushing

3.

Feed pipe

4.

O-ring

>>

N

<< 5.

Lock nut

>>

N

<< 6.

Tie rod end

7.

Clip

>>

M

<< 8.

Bellows band

9.

Bellows

>>

L

<< 10.

Tie rod

>>

L

<< 11.

Tab washer

>>

K

<< •

Total pinion torque adjustment

>>

J

<< 12.

Lock nut

<<

A

>> >>

J

<< 13.

Rack support cover

14.

Support spring

15.

Rack support

>>

I

<< 16.

End plug

17.

Lock nut

18.

Valve housing assembly

<<

B

>> >>

H

<< 19.

Lower oil seal

<<

B

>>

20.

Pinion and valve assembly

<<

C

>> >>

G

<< 21.

Seal ring

<<

D

>> >>

F

<< 22.

Upper bearing

<<

D

>> >>

F

<< 23.

Upper oil seal

24.

Valve housing

<<

E

>> >>

E

<< 25.

Circlip

<<

F

>>

26.

Rack stopper

<<

F

>> >>

D

<< 27.

Rack bushing

<<

F

>> >>

D

<< 28.

Oil seal

<<

F

>>

29.

O-ring

<<

F

>> >>

C

<< 30.

Rack assembly

<<

C

>>

31.

Seal ring

32.

O-ring

<<

G

>> >>

B

<< 33.

Lower bearing

<<

H

>> >>

B

<< 34.

Needle bearing

<<

I

>> >>

A

<< 35.

Oil seal

36.

Gear housing

Disassembly steps (Continued)

POWER STEERING GEAR BOX AND LINKAGE

POWER STEERING

37-23

<RH drive vehicles>

AC311005

3

23

21

19

4

11 8

8

11 35

17 31

32

29 28

6

5

7

9

8

10

11

25

26

28

29

27

32

31

30

12

13

14

15

16

17

33

35

36

1

2

34

4

4

3

24

23

22

21

20

19

18

AB

Steering gear seal kit

Flare nut

Repair kit grease

22 ± 4 N·m

59 ± 10 N·m

25 ± 4 N·m

88 ± 10 N·m

52 ± 2 N·m

59 ± 10 N·m

13 ± 3 N·m

23 ± 2 N·m -30˚

4

Disassembly steps

>>

O

<< 1.

Gear mounting rubber

2.

Gear housing mounting bushing

3.

Feed pipe

4.

O-ring

>>

N

<< 5.

Lock nut

>>

N

<< 6.

Tie rod end

7.

Clip

>>

M

<< 8.

Bellows band

9.

Bellows

>>

L

<< 10.

Tie rod

>>

L

<< 11.

Tab washer

>>

K

<< •

Total pinion torque adjustment

>>

J

<< 12.

Lock nut

<<

A

>> >>

J

<< 13.

Rack support cover

14.

Support spring

15.

Rack support

>>

I

<< 16.

End plug

17.

Lock nut

18.

Valve housing assembly

<<

B

>> >>

H

<< 19.

Lower oil seal

<<

B

>>

20.

Pinion and valve assembly

<<

C

>> >>

G

<< 21.

Seal ring

<<

D

>> >>

F

<< 22.

Upper bearing

<<

D

>> >>

F

<< 23.

Upper oil seal

24.

Valve housing

<<

E

>> >>

E

<< 25.

Circlip

<<

F

>>

26.

Rack stopper

<<

F

>> >>

D

<< 27.

Rack bushing

<<

F

>> >>

D

<< 28.

Oil seal

<<

F

>>

29.

O-ring

<<

F

>> >>

C

<< 30.

Rack assembly

<<

C

>>

31.

Seal ring

32.

O-ring

<<

G

>> >>

B

<< 33.

Lower bearing

<<

H

>> >>

B

<< 34.

Needle bearing

<<

I

>> >>

A

<< 35.

Oil seal

36.

Gear housing

Disassembly steps (Continued)

POWER STEERING GEAR BOX AND LINKAGE

POWER STEERING

37-24

LUBRICATION AND SEALING POINTS

AC200119 AC

Grease: Silicone grease

Fluid:
ATF DXRON III or
DEXRON II

Grease: Repair kit grease
Fluid:
ATF DXRON III or
DEXRON II
Sealant:
3M ATD Part No. 8661
or equivalent

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

Fluid:
ATF DXRON III or
DEXRON II

Fluid:
ATF DXRON III or
DEXRON II

Fluid:
ATF DXRON III or
DEXRON II

Grease: Repair kit grease
Fluid:
ATF DXRON III or DEXRON II