power steering MITSUBISHI LANCER 2005 User Guide

37-2
STEERING SHAFT* . . . . . . . . . . . . . .37-21
REMOVAL AND INSTALLATION . . . . . . . . 37-21
DISASSEMBLY AND REASSEMBLY . . . . . 37-22
POWER STEERING GEAR BOX AND
LINKAGE* . . . . . . . . . . . . . . . . . . . . .37-24
REMOVAL AND INSTALLATION . . . . . . . . 37-24
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . 37-26
DISASSEMBLY AND REASSEMBLY . . . . . 37-27
TIE ROD END BALL JOINT DUST COVER
REPLACEMENT . . . . . . . . . . . . . . . . . . . . . 37-36
POWER STEERING OIL PUMP
ASSEMBLY. . . . . . . . . . . . . . . . . . . . .37-37
REMOVAL AND INSTALLATION . . . . . . . . 37-37
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . 37-38
DISASSEMBLY AND REASSEMBLY . . . . . 37-39
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . 37-41
POWER STEERING HOSES*. . . . . . .37-42
REMOVAL AND INSTALLATION . . . . . . . . 37-42

GENERAL INFORMATION
POWER STEERING37-3
GENERAL INFORMATION
M1372000100337
Power steering has been adopted in all vehicles to
make the steering system easier to handle.
FEATURES
•A 4-spoke steering wheel is used. <Comfort>
•MOMO leather-wrapped 3-spoke steering wheel
is used. <Sport>
•A steering column has a shock absorbing
mechanism and a tilt steering mechanism.•Integral-type rack and pinion gear with high
rigidity and excellent response is used.
•A vane type pump with a fluid flow rate control
system which change steering effort according to
the engine speed is used.
•The separate plastic resin oil reservoir is used to
reduce weight and to make the fluid level
checking easier.
SPECIFICATIONS
Item Comfort Sport
Steering
wheelType 4-spoke type MOMO leather-wrapped
3-spoke type
Outside diameter mm 380 365
Maximum number of turns 3.19 2.86 <L.H. drive vehicles>
3.08 <R.H. drive vehicles>
Steering
columnColumn mechanism Shock absorbing mechanism and Tilt steering mechanism
Power steering type Integral type
Oil pump Type Vane pump
Basic discharge amount cm
3/rev.7.2 <1300, 1600>
8.1 <2000>7.2 <1300, 1600>
8.1 <2000>
Relief pressure MPa 8.8 8.8
Reservoir type Separate type (plastic)
Pressure switch Equipped
Steering
gearType Rack and pinion
Stroke ratio (Rack stroke/Steering
wheel maximum turning radius)45.74 45.74
Rack stroke mm 146 131 <L.H. drive vehicles>
141 <R.H. drive vehicles>

GENERAL INFORMATION
POWER STEERING37-4
CONSTRUCTION DIAGRAM
1300, 1600 - L.H. drive vehicles
1300, 1600 - R.H. drive vehicles
AC304488AB
Steering wheel
Steering column
shaft assembly
Pressure hose
assembly Oil reservoir
Suction hoseReturn hose
Oil pump assembly
Steering gear
AC304489AB
Steering wheel
Steering column
shaft assembly
Pressure hose
assembly Oil reservoir
Suction hose
Return hose
Oil pump assembly
Steering gear

GENERAL INFORMATION
POWER STEERING37-5
2000 - L.H. drive vehicles
2000 - R.H. drive vehicles
AC304486AB
Steering wheel
Steering column
shaft assembly
Pressure hose
assembly Oil reservoir
Suction hose
Return hose
Oil pump assembly
Steering gear
AC304487AB
Steering wheel
Steering column
shaft assembly
Pressure hose
assembly Oil reservoir
Suction hose
Return hose
Oil pump assembly
Steering gear

SERVICE SPECIFICATIONS
POWER STEERING37-6
SERVICE SPECIFICATIONS
M1372000300386
Item Standard value Limit
Steering wheel free
play mmWith engine running
−30
With engine stopped 10 or less
−
Steering angle Inner wheel Comfort 39°30' ± 1°30'
−
Sport (L.H. drive vehicles) 33°40' +1°00'/-2°00'
−
Sport (R.H. drive vehicles) 37°00' +1°00'/-2°00'
−
Outer wheel
(reference)Comfort 32°30'
−
Sport (L.H. drive vehicles) 28°46'
−
Sport (R.H. drive vehicles) 30°00'
−
Toe-in At the centre of tyre tread mm 1 ± 2
−
Toe-angle (per wheel) 0°03' ± 06'
−
Tie rod end ball joint turning torque N⋅m0.5 − 2.5
−
Tie rod swing resistance N [Tie rod swing torque N⋅m] 8 − 27 [1.5 − 4.9]
−
Stationary steering effort N [Fluctuation allowance N] 29 or less [5.9 or less]
−
Oil pump pressure
MPa (750 ± 100 r/min.)Oil pump relief pressure 8.8 − 9.5
−
Pressure under no-load conditions 0.2 − 0.7
−
Steering gear retention hydraulic pressure 8.8 − 9.5
−
Oil pressure switch operating pressure
MPaOFF → ON 1.5 − 2.0
−
ON → OFF 0.7 − 2.0
−
Steering gear total pinion torque N⋅m
[Change in torque N⋅m]1300, 1600 (Comfort) 0.8 − 2.1 [0.6 or less]
−
1600 (Sport), 2000 0.7 − 2.1 [0.6 or less]
−
Opening dimension of special tool boot band crimping tool (MB991561)
mm2.9
−
Band crimped width mm 2.4 − 2.8
−

LUBRICANTS
POWER STEERING37-7
LUBRICANTS
M1372000400350
SEALANTS
M1372000500357
Item Specified lubricant Quantity
Power steering fluid ATF DEXRON III or DEXRON II Approximately 1.0 L
Steering gear Bearing ATF DEXRON III or DEXRON II As required
O-ring and seal ring
Oil seal
Special tool (MB991212,
MB991213)
Pinion and valve assembly
seal ring part
Bellows Silicon grease As required
Tie rod end ball joint Multipurpose grease SAE J310,
NLGI No.2 or equivalentAs required
Oil pump Friction surface of rotor vane,
cam ring and pump coverATF DEXRON III or DEXRON II As required
O-ring
Item Specified sealant
Steering shaft cover assembly bolt hole on the toeboard 3M ATD Part No.8513 or equivalent
Steering gear End plug 3M ATD Part No.8661, 8663 or
equivalent
Rack support cover

SPECIAL TOOLS
POWER STEERING37-8
SPECIAL TOOLS
M1372000600354
Tool Number Name Use
MB991897 Ball joint remover Knuckle and tie rod end ball joint
disconnection
NOTE: Steering linkage puller
(MB990635 or MB991113) is also
available to disconnect knuckle and
tie rod end ball joint.
MB990326 Preload socket Tie rod end ball joint turning torque
check
MB991548 Power steering oil
pressure gauge
adapter (Pump
side)Oil pump pressure test
MB991549 Power steering oil
pressure gauge
adapter (Hose
side)
MB990662 Power steering oil
pressure gauge
MB990784 Ornament remover Cover removal
MB990228 or
MB991006Preload socket Steering gear total pinion torque
check and adjustment
AC106827
MB990326
MB991548
MB991549
MB990662
MB990784
MB991006

SPECIAL TOOLS
POWER STEERING37-9
MB990607 Torque wrench
socket•Rack support cover removal
<Comfort>
•Rack support adjustment
<Comfort>
MB991621 Piston driver•Rack support cover removal
<Sport>
•Rack support adjustment <Sport>
MB990925 Bearing and oil
seal installer set•Lower bearing removal
•Oil seal and bearing installation
•MB990927, MB990938, MB990939
(For details, refer to GROUP 26,
Special Tools P.26-4).
MB991120 Needle bearing
pullerNeedle bearing removal
MB991202 Oil seal and
bearing installer•Oil seal installation <Comfort>
•Needle bearing installation
•Lower bearing installation
MB991199 Oil seal and
bearing installerOil seal installation <Sport>
MB991197 Bar (long type) Oil seal installation
MB991212
MB991213Oil seal protector Rack installation Tool Number Name Use
MB991621
MB990925
MB991120
MB991202
MB991199
AB
MB991197
MB991212

SPECIAL TOOLS
POWER STEERING37-10
MB991203 Oil seal and
bearing installerOil seal and bearing installation
MB991317 Seal ring installer Seal rings installation
MB990941 Torque tube
bearing installerLower oil seal installation
MB991561 Boot band crimping
toolBellows band installation
MB990776 Front axle base Tie rod end ball joint dust cover
installation Tool Number Name Use
MB991203
MB991317
MB990941
MB991561
MB990776

ON-VEHICLE SERVICE
POWER STEERING37-11
ON-VEHICLE SERVICE
STEERING WHEEL FREE PLAY CHECKM1372001000311
1. With the engine running (hydraulic operation), set
the front wheels straight ahead.
2. Measure the play on the steering wheel
circumference before the wheels start to move
when slightly moving the steering wheel in both
directions.
Limit: 30 mm
3. When the play exceeds the limit, check for the
play on the steering shaft and steering linkage
connection. Correct or replace.
4. If the free play still exceeds the limit value, set the
steering wheel straight ahead with the engine
stopped. Load 5 N towards the steering wheel
circumference and check the play.
Standard value (steering wheel play with the
engine stopped): 10 mm or less
5. If the play exceeds the standard value, remove
the steering gear (Refer to P.37-24) and check
the total pinion torque (Refer to P.37-27).
STEERING ANGLE CHECKM1372001100374
1. Place the front wheel on a turning radius gauge
and measure the steering angle.
Standard value:
2. If the steering angle is not within the standard
value, adjust the toe-in as follows.
Standard value:
at the centre of tyre tread: 1 ± 2 mm
Toe angle (per wheel): 0°03' ± 06'
3. Loosen the lock nut, and unclip the bellows.
4. Adjust the toe-in by turning the left and right tie
rod turnbuckles by the same amount (in opposite
directions).
NOTE: The toe will move out as the left
turnbuckle is turned toward the front of the vehicle
and the right turnbuckle is turned toward the rear
of the vehicle.
5. Tighten the lock nut to the specified torque, and
tighten the bellows by the clip.
Tightening torque: 40 ± 5 N⋅m
6. Recheck the steering angle.
ACX01122
AB
AC000756AB
Inner
wheelsComfort 39°30' ± 1°30'
Sport (L.H.
drive vehicles)33°40' +1°00'/-2°00'
Sport (R.H.
drive vehicles)37°00' +1°00'/-2°00'
Outer
wheels
(reference)Comfort 32°30'
Sport (L.H.
drive vehicles)28°46'
Sport (R.H.
drive vehicles)30°00'
AC006074AD
Lock nut
Clip