steering MITSUBISHI LANCER EVOLUTION IV 1998 Owner's Manual

REAR AXLE – Sensor Relay 27-52
SENSOR RELAY
REMOVAL AND INSTALLATION
12
3
4
Steer sensor removal steps
Steering wheel and column cover
(Refer to GROUP 37 – Steering Wheel
and Shaft.)
A1. Steer sensorAcceleration sensor and AYC relay
removal
2. Longitudinal acceleration sensor
3. Lateral acceleration sensor
4. AYC relay
NOTE
For the wheel speed sensor, refer to GROUP 35B.
REMOVAL SERVICE POINT
ASTEER SENSOR REMOVAL
Remove the steer sensor from the column switch.
Caution
(1) A photocoupler is used as the steer sensor. Use care
not to allow dust or grease to be on the sensor.
(2) Do not bend or dirty with grease the slit plate on
the column switch side.Slit plate
Steer sensor

REAR SUSPENSION – Service Specifications / Lubricant / Special Tools34-2
SERVICE SPECIFICATIONS
ItemsStandard value
Toe-in mm3 ± 2
Camber–1
00 ± 30’
Rear thrust angle0
00 ± 9’
Upper arm ball joint turning torque Nm {kgf
cm}0.5 – 2.5 {5 – 25}
Trailing arm ball joint turning torque Nm {kgf
cm}0.5 – 2.5 {5 – 25}
Toe control arm ball joint turning torque Nm {kgf
cm}0.5 – 2.5 {5 – 25}
Toe control arm slide bushing operating torque Nm {kgf
cm}0.2 – 1.5 {2 – 15}
Stabilizer link ball joint turning torque Nm {kgf
cm}1.7 – 3.1 {17 – 32}
LUBRICANT
ItemsSpecified lubricantQuantity
Inside and lips of upper arm ball joint dust coverMolybdenum disulfide-base chassis grease:
SHOWA SHELL SEKIYU SUNLITE MB2
As required
Inside and lips of trailing arm ball joint dust coverSHOWA SHELL SEKIYU SUNLITE MB2,
NISSEKI CLAKNOCK FL, or equivalent
Inside and lips of control arm ball joint dust cover
Inside and lips of stabilizer link ball joint dust coverSHOWA SHELL SEKIYU VARIANT R-2 or
equivalent
SPECIAL TOOLS
ToolNumberNameUse
MB991004Wheel alignment
gauge attachmentMeasurement of wheel alignment with aluminum wheels>
MB990326Preload socketMeasurement of ball joint turning torque
MB990635,
MB991113, or
MB991406Steering linkage
pullerDisconnection of ball joint from knuckle
MB990800Ball joint remover &
installerPressfitting of ball joint dust cover

BASIC BRAKE SYSTEM – Brake Pedal35A-4
BRAKE PEDAL
REMOVAL AND INSTALLATION
Pre-removal Operation

Instrument Under Cover Removal

Steering Column Assembly Removal
(Refer to GROUP 37A – Steering Wheel and Shaft.)

Accelerator Pedal RemovalPost-installation Operation

Accelerator Pedal Installation

Steering Column Assembly Installation
(Refer to GROUP 37A – Steering Wheel and Shaft.)

Instrument Under Cover Installation

Brake Pedal Adjustment (Refer to P.35A-2.)
29 Nm
12 Nm
14 Nm
1 2
3
4 5
67 813 Nm
11
910
8 9
Removal steps
1. Stop lamp switch connector
2. Stop lamp switch
3. Snap pin
4. Clevis pin
5. Brake pedal shaft bolt
6. Brake pedal7. Brake pedal pad
8. Brake pedal return spring
9. Bushing
10. Pipe
11. Pedal support member

ABS – Troubleshooting35B-11
3. INSPECTION CHART FOR TROUBLE SYMPTOMS
Get an understanding of the trouble symptoms and check according to the inspection procedure chart.
Trouble symptomsInspection pro-
cedure No.Reference page
When the ignition key is turned to “ON” (engine stopped), the ABS warning lamp
does not illuminate.135B-12
Even after the engine is started, the ABS warning lamp remains illuminated.235B-13
After the ignition key is turned to “ON”, the ABS warning lamp blinks twice, and
when turned to “START”, it illuminates. When returned to “ON”, the lamp
flashes once, and then switches off.335B-13
When the ignition key is turned to “START”, the ABS warning lamp does not
illuminate.435B-14
Brake operation is abnormal535B-14
Caution
(1) If steering movements are made when driving at high speed, or when driving on road surfaces
with low frictional resistance, or when passing over bumps, the ABS may operate even though
sudden braking is not being applied. Because of this, when getting information from the customer,
check if the problem occurred while driving under such conditions as these.
(2) During ABS operation, the brake pedal may vibrate or may not be able to be depressed. Such
phenomena are due to intermittent changes in hydraulic pressure inside the brake line to prevent
the wheels from locking and is not an abnormality.

37A-1
STEERING
CONTENTS
SERVICE SPECIFICATIONS 2. . . . . . . . . . . . . .
SPECIAL TOOLS 2. . . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE 2. . . . . . . . . . . . . . . . . .
1. Steering Angle Check 2. . . . . . . . . . . . . . . . .
2. Oil Pump Belt Tension Check and
Adjustment 2. . . . . . . . . . . . . . . . . . . . . . . . . . .
STEERING WHEEL
3. . . . . . . . . . . . . . . . . . . .
POWER STEERING GEAR & LINKAGE 3. . .
POWER STEERING OIL PUMP 7. . . . . . . . . . .
POWER STEERING FLUID COOLER 9. . . . .

STEERING – Service Specifications / Special Tools / On-vehicle Service37A-2
SERVICE SPECIFICATIONS
ItemsStandard value
Steering angleEVOLUTION-IVInner wheel33
30’ ± 2

Outer wheel28
20’
EVOLUTION-VInner wheel33
10’ ± 2

Outer wheel28
10’
Steering gearPinion total turning torque
Nm {kgfcm}
Total turning torque0.9 – 1.7 {9 – 17}
Nm {kgf
cm}Torque fluctuations0.4 {4} or less
SPECIAL TOOLS
ToolNumberNameUse
MB991197Installer barPressfitting of gear housing oil seal
MB991199Oil seal installer
MB991214Oil seal protectorInstallation of rack assembly
ON-VEHICLE SERVICE
1. STEERING ANGLE CHECK
Locate front wheels on turning radius gauge and measure
steering angle.
Standard value:
Inner wheel
33
30’ ± 2

33
10’ ± 2

Outer wheel
28
20’
28
10’
When the angle is not within the standard value, the toe
is probably incorrect. Adjust toe (Refer to GROUP 33A –
On-vehicle Service) and recheck steering angle.
2. OIL PUMP BELT TENSION CHECK AND
ADJUSTMENT
Refer to GROUP 11 – Engine Adjustments.

STEERING –
Steering Wheel /
Power Steering Gear & Linkage37A-3
STEERING WHEEL

REMOVAL SERVICE POINT
STEERING WHEEL REMOVAL
(1) Peel off the dual lock fasteners from the steering wheel
spokes and remove the horn pad.
(2) Remove the bolts indicated by arrows in the illustration
and remove the steering wheel from the boss plate.
(3) Using the special tool, remove the boss plate from the
steering column.
POWER STEERING GEAR &
LINKAGE
For removal, installation and inspection procedure, follow the
conventional procedures except the following.
INSPECTION
PINION TOTAL TURNING TORQUE
The conventional procedures apply except for the standard
value.
Standard value:
Total turning torque 0.9 to 1.7 Nm {9 to 17 kgf
cm}
Torque fluctuations 0.4 Nm {4 kgf
cm} or less
Dual lock
fastener
Boss plate
MB990803

STEERING – Power Steering Gear & Linkage37A-4
DISASSEMBLY AND REASSEMBLY
1 2
3
4
5 6
7
8 9 10 11 12 13 14 15
16
17
1833
20
35
22 23
24 25 26
27 29
31
Unit: Nm {kgf
m}
22 {2.2}
3034
49 – 59
{5.0 – 6.0}
28
19
21
59 {6.0}
25 {2.5}
59 { 6.0}
1
13 {1.3}
88 {9.0}
7
32
10 2 22
20
18
7
1034
16
30
3128 27
Steering gear seal kit
Flare nut
Repair kit grease
Disassembly steps
1. Feed pipe
2. O-ring
N3. Lock nut
N4. Tie rod end
M5. Dust cover
6. Clip
L7. Band
8. Bellows
K9. Tie rod
K10. Tab washer
JPinion total turning torque adjustment
11. Lock nut
A12. Rack support cover
13. Support spring
14. Rack support
I15. End plug
16. Lock nut
17. Valve housing assemblyBH18. Lower oil seal
B19. Pinion & valve assembly
CG20. Seal ring
DF21. Upper bearing
DF22. Upper oil seal
23. Valve housing
EE24. Circlip
F25. Rack stopper
FD26. Rack bushing
GD27. Oil seal
28. O-ring
FC29. Rack assembly
C30. Seal ring
31. O-ring
HB32. Lower bearing
IB33. Needle bearing
JA34. Oil seal
35. Gear housing

STEERING – Power Steering Gear & Linkage37A-5
LUBRICANT AND SEALANT APPLICATION POINTS
Same as before.
DISASSEMBLY SERVICE POINT
Follow the conventional procedures.
REASSEMBLY SERVICE POINTS
Follow the conventional procedures except followings.
AOIL SEAL INSTALLATION
CRACK ASSEMBLY INSTALLATION
(1) Apply a coating of repair kit grease to the rack tooth
face.
Caution
Do not close the vent hole in the rack with grease.
(2) Cover rack serrations with special tool.
(3) Apply the specified fluid on the special tool, seal ring
and O-ring surfaces.
Specified fluid:
MITSUBISHI GENUINE ATF II
Caution
Do not use ATF-SP II.
(4) Slowly insert the special tool-covered rack into the gear
housing from power cylinder side.
Caution
When inserting the rack, align the oil seal center with
the tip of the special tool to prevent the retainer spring
from slipping.
MB991197 Gear housing
Oil seal
MB991199
Vent hole
Seal ring, O-ring
MB991214
Oil seal

STEERING – Power Steering Gear & Linkage37A-6
JADJUSTMENT OF PINION TOTAL TURNING
TORQUE
(1) With special tool, tighten rack support cover to 15 Nm
{1.5 kgf
m}.
(2) Return rack support cover approx. 30
.
(3) Using the special tools, rotate the pinion shaft at the
rate of one rotation in approximately 4 to 6 seconds to
check that the turning torque and the torque fluctuation
confirm to the standard values.
Standard value:
Pinion total turning torque
0.9 – 1.7 Nm {9 – 17 kgf
cm}
Torque fluctuation 0.4 Nm {4 kgf
cm} or less
(4) If either the turning torque or the torque fluctuation
deviates from the standard value, turn back the rack
support cover within the range of 0 to 30
to adjust it
for the standard value.
Caution
1. When adjusting, set the standard value at its
highest value.
2. Assure no ratcheting or catching when operating
rack towards the axial direction.
3. Be sure to measure the turning torque through
the whole stroke of the rack.
NOTE
If the standard value cannot be obtained by turning back
the rack support cover within the specified angle range,
check rack support cover components and replace as
required.
NTIE ROD END / LOCK NUT INSTALLATION
Turn down the tie rod until the dimension shown in the
illustration is reached; then, temporarily tighten the lock nut.
NOTE
The lock nut is to be tightened to the specified torque after
toe-in has been adjusted with the steering gear & linkage
mounted in the vehicle.
MB990607
MB991006
End of groove in
which bellows fitsLock nut
197.2 mm
212.2 mm