lock MITSUBISHI LANCER EVOLUTION 2007 Service Repair Manual

37A-1
STEERING
CONTENTS
GENERAL INFORMATION 2..................
SERVICE SPECIFICATIONS 4.................
LUBRICANTS 4..............................
SEALANT 4..................................
SPECIAL TOOLS 4...........................
ON-VEHICLE SERVICE 7.....................
Steering Wheel Free Play Check 7..............
Steering Angle Check 7........................
Tie Rod End Ball Joint Turning Torque Check 7..
Stationary Steering Effort Check 8...............
Checking Steering Wheel Return to Centre 8.....
Drive Belt Tension Check 8.....................Power Steering Fluid Level Check 9.............
Power Steering Fluid Replacement 9.............
Power Steering System Bleeding 9..............
Oil Pump Pressure Test 10.....................
Power Steering Oil Pressure Switch Check 11....
Ball Joint Dust Cover Check 11.................
STEERING WHEEL* 12.......................
STEERING SHAFT* 14.......................
POWER STEERING GEAR BOX AND
LINKAGE* 16................................
POWER STEERING OIL PUMP 29............
POWER STEERING OIL HOSES 30...........
WARNINGS REGARDING SERVICING OF SUPPLEMENTAL RESTRAINT SYSTEM (SRS) EQUIPPED VEHICLES
WARNING!
(1) Improper service or maintenance of any component of the SRS, or any SRS-related component, can lead to personal
injury or death to service personnel (from inadvertent firing of the air bag) or to the driver and passenger (from rendering
the SRS inoperative).
(2) Service or maintenance of any SRS component or SRS-related component must be performed only at an authorized
MITSUBISHI dealer.
(3) MITSUBISHI dealer personnel must thoroughly review this manual, and especially its GROUP 52B - Supplemental
Restraint System (SRS) before beginning any service or maintenance of any component of the SRS or any SRS-related
component.
NOTE
The SRS includes the following components: SRS-ECU, SRS warning lamp, air bag module, clock spring and interconnecting
wiring. Other SRS-related components (that may have to be removed/installed in connection with SRS service or maintenance) are
indicated in the table of contents by an asterisk (*).

STEERING -On-vehicle Service37A-7
ON-VEHICLE SERVICE
STEERING WHEEL FREE PLAY CHECK
1. With engine running (hydraulic operation), set front wheels
straight ahead.
2. Measure the play on steering wheel circumference before
wheels start to move when slightly moving steering wheel
in both directions.
Limit: 30 mm or less
3. When play exceeds the limit, check for play on steering
shaft connection and steering linkage. Correct or replace.
4. If the free play still exceeds the limit value, set steering
wheel straight ahead with engine stopped. Load 5 N
towards steering wheel circumference and check play.
Standard value: 0 - 10 mm
5. If the play exceeds the standard value, remove steering
gear box and check total pinion torque. (Refer to
P.37A-17.)
STEERING ANGLE CHECK
1. Locate front wheels on turning radius gauge and measure
steering angle.
Standard value:
Inner wheel31_45’±1_30’
Outer wheel27_15’
2. When the angle is not within the standard value, the
toe-in is probably incorrect. Adjust the toe-in.
Standard value: 0±2mm
Adjust the toe-in by undoing the clip and lock nut, and
turning the left and right tie rod turnbuckles by the same
amount (in opposite directions).
3. Recheck the steering angle.
TIE ROD END BALL JOINT TURNING TORQUE
CHECK
1. Disconnect tie rod and knuckle with special tool.
Caution
(1) Loosen the nut of the special tool, but do not
remove it. If it is removed, the ball joint thread
may be damaged.
(2) Tie the special tool with a cord so as not to fall
off.
Clip
Lock nut
Cord
Ball jointNutMB990635,
MB991113 or
MB991406

STEERING -Steering Wheel37A-12
STEERING WHEEL
REMOVAL AND INSTALLATION
Caution:
Before removing the steering wheel and air bag module assembly, refer to GROUP 52B – Service
Precautions and Air Bag Module and Clock Spring.
Post-installation Operation
Checking Steering Wheel Position with Wheels Straight
Ahead

1 2
41±8 N·m
9±2 N·m
9±2 N·m
Removal steps
1. Air bag module assembly
AA"2. Steering wheel

1 250±5 N·m
2
Removal steps
AB"1. Cover
AC"2. Steering wheel and air bag module
assembly

STEERING -Steering Wheel37A-13
REMOVAL SERVICE POINTS
AA"STEERING WHEEL REMOVAL
AB"COVER REMOVAL
Insert the special tool from the indicated position to remove
the cover.
NOTE
The special tool can be inserted through the notch behind
the position shown.
AC"STEERING WHEEL AND AIRBAG MODULE
ASSEMBLY REMOVAL
1. By sliding section A of the clock spring connector shown
in the illutration in the arrow direction, disconnect the
connector.
2. Loosen the bolt completely. Then, remove the steering
wheel and airbag module assembly.
NOTE
Use a hexagonal bit socket or a hexagonal wrench having
an effective length of 75 mm or more in the hexagonal
section and the diameter of 8 mm or more.MB990784
MB990784
Clock spring
connector
Steering
wheel
A
Hexagonal
bit socket

STEERING -Steering Shaft37A-14
STEERING SHAFT
REMOVAL AND INSTALLATION
Caution:
Before removing clock spring, refer to GROUP 52B – Service Precautions and Air Bag Module
and Clock Spring.
Pre-removal Operation
DSteering Wheel Removal (Refer to P.37A-12.)
DInstrument Under Cover Removal
(Refer to GROUP 52A.)Post-installation Operation
DInstrument Under Cover Installation
(Refer to GROUP 52A.)
DSteering Wheel Installation (Refer to P.37A-12.)
DChecking Steering Wheel Position with Wheels
Straight Ahead
Ta b
Column
cover
2Section A – A
13
4 5
67
A
A
18±2 N·m 12±2 N·m
5.0±1.0 N·m8
Removal steps
1. Lower column cover
2. Upper column cover
3. Clock spring and column switch
assembly (Refer to GROUP 52B.)
"AA4. Bolt5. Steering column shaft assembly
and Shaft cover
6. Shaft cover
7. Steering column shaft assembly
8. Cover assembly
INSTALLATION SERVICE POINT
"AABOLT INSTALLATION
Before installing the bolt, coat the mounting hole on the toe
board with the specified sealant.
Specified sealant: 3M ATD Part No.8513 or equivalent
Toe board

STEERING -Steering Shaft37A-15
DISASSEMBLY AND REASSEMBLY
1
2
3 4
5 6
7
Disassembly steps
AA""AA1. Special bolt
"AA2. Steering lock bracket
"AA3. Steering lock cylinder assembly
4. Snap ring5. Steering shaft assembly
6. Tilt spring
7. Steering column assembly
DISASSEMBLY SERVICE POINT
AA"SPECIAL BOLT REMOVAL
1. Drill in the special bolt a hole deep enough for the tap
to stand.
2. Remove the special bolt with a left-hand tap.
REASSEMBLY SERVICE POINT
"AASTEERING LOCK CYLINDER ASSEMBLY/
STEERING LOCK BRACKET/SPECIAL BOLT
INSTALLATION
1. When installing the steering lock cylinder assembly and
steering lock bracket to the steering column assembly,
temporarily install the steering lock in alignment with the
column boss.
2. Check that the steering lock works properly. Then, tighten
the special bolts until the heads twists off.
Steering lock
bracket
Steering lock body
Special boltLeft-hand tap

STEERING - Power Steering Gear Box and Linkage37A-16
POWER STEERING GEAR BOX AND LINKAGE
REMOVAL AND INSTALLATION
Caution: SRS
Before removing steering gear box, refer to GROUP 52B. Also, put the front wheels in straight-ahead
position. Failure to do so may damage the SRS clock spring and render the SRS air bag inoperative,
which results serious driver injury.
Caution
If the vehicle is equipped with the Brembo disc brake, during maintenance, take care not to contact
the parts or tools to the caliper because the paint of caliper will be scratched. And if there is
brake fluid on the caliper, wipe out quickly.
Pre-removal Operation
DClock Spring Removal (Refer to GROUP 52B.)
DPower Steering Fluid Draining (Refer to P.37A-9.)Post-installation Operation
DClock Spring Installation (Refer to GROUP 52B.)
DPower Steering Fluid Supplying and bleeding
(Refer to P.37A-9.)
DChecking Steering Wheel Position with Wheels
Straight Ahead

17
6
3 4
57±7 N·m5
8
70±10 N·m
2
15±3 N·m
9
10
12±2 N·m 12±2 N·m
70±10 N·m
Removal steps
1. Crossmember
(Refer to GROUP 32.)
DRear roll stopper(Refer to GROUP 32.)
2. Joint cover grommet
3. Return hose
4. Return tube5. O ring
6. Return tube
7. Eye bolt
8. Pressure hose assembly
9. Clamp
10. Steering gear and linkage

STEERING - Power Steering Gear Box and Linkage37A-19
DISASSEMBLY AND REASSEMBLY
31
30
28
11
10
8
97
5
6
29
2618
33
22
20
Flare nut
21
23
36
32 17
1615
14 13
12 3
19
Steering gear seal set
Repair kit grease35
23
21
19
8
1135
17
32 3129
2811
8 3
4 4
27 25
22±4 N·m
25±4 N·m59±10 N·m
88±10 N·m 52±2 N·m
13±3 N·m
1
2 4
23±2 N·m→-30_
59±10 N·m
34
24
4

Disassembly steps
"OA1. Gear mounting rubber cushion
2. Gear housing mounting bushing
3. Feed pipe
4. O-ring
"NA5. Lock nut
"NA6. Tie rod end
7. Clip
"MA8. Band
9. Bellows
"LA10. Tie rod
"LA11. Tab washer
"KADTotal pinion rotating torque adjustment
"JA12. Lock nut
AA""JA13. Rack support cover
14. Support spring
15. Rack support
"IA16. End plug
17. Lock nut18. Valve housing assembly
AB""HA19. Lower oil seal
AB"20. Pinion and valve assembly
AC""GA21. Seal ring
AD""FA22. Upper bearing
AD""FA23. Upper oil seal
24. Valve housing
AE""EA25. Circlip
AF"26. Rack stopper
AF""DA27. Rack bushing
AF""DA28. Oil seal
AF"29. O-ring
AF""CA30. Rack assembly
AC"31. Seal ring
32. O-ring
AG""BA33. Lower bearing
AH""BA34. Needle bearing
AI""AA35. Oil seal
36. Gear housing

STEERING - Power Steering Gear Box and Linkage37A-20
18
24
23
22
21
20
34
36
33
17
1615
14
13
123
19
3523
21
19
8
1135
17
31
3229
2811
8
3
4 4
31
32
27
29
28
26
25
1110
8
9
756
304
22±4 N·m
25±4 N·m
59±10 N·m
59±10 N·m
88±10 N·m
52±2 N·m
23±2 N·m→–30_
13±3 N·m
1 2
4
Flare nut
Steering gear seal set
Repair kit grease3
4

Disassembly steps
"OA1. Gear mounting rubber cushion
2. Gear housing mounting bushing
3. Feed pipe
4. O-ring
"NA5. Lock nut
"NA6. Tie rod end
7. Clip
"MA8. Band
9. Bellows
"LA10. Tie rod
"LA11. Tab washer
"KADTotal pinion rotating torque adjustment
"JA12. Lock nut
AA""JA13. Rack support cover
14. Support spring
15. Rack support
"IA16. End plug
17. Lock nut18. Valve housing assembly
AB""HA19. Lower oil seal
AB"20. Pinion and valve assembly
AC""GA21. Seal ring
AD""FA22. Upper bearing
AD""FA23. Upper oil seal
24. Valve housing
AE""EA25. Circlip
AF"26. Rack stopper
AF""DA27. Rack bushing
AF""DA28. Oil seal
AF"29. O-ring
AF""CA30. Rack assembly
AC"31. Seal ring
32. O-ring
AG""BA33. Lower bearing
AH""BA34. Needle bearing
AI""AA35. Oil seal
36. Gear housing

STEERING - Power Steering Gear Box and Linkage37A-22
DISASSEMBLY SERVICE POINTS
AA"RACK SUPPORT COVER REMOVAL
AB"LOWER OIL SEAL/PINION AND VALVE
ASSEMBLY REMOVAL
With a plastic hammer, lightly tap the pinion and valve
assembly in its spline to remove the lower oil seal and pinion
and valve assembly from the valve housing.
AC"SEAL RING REMOVAL
Cut the seal ring to remove from the pinion and valve assembly.
Caution
When cutting the seal ring, be careful not to damage
the pinion and valve assembly.
AD"UPPER BEARING/UPPER OIL SEAL REMOVAL
Using a socket, pull out the upper oil seal and bearing from
the valve housing.
AE"CIRCLIP REMOVAL
1. Turn the rack stopper clockwise until the circlip end comes
out of the slot in the rack housing.
2. Turn the rack stopper anticlockwise to remove the circlip.
Caution
Do not turn the rack stopper anticlockwise first.
Otherwise, the circlip will get caught in the slot in
the housing, which makes the rack stopper unable
to turn.MB991204
Socket
Circlip
Rack stopper