Mitsubishi Lancer Evolution X. Manual - part 225

 

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Mitsubishi Lancer Evolution X. Manual - part 225

 

 

SPECIAL TOOLS

TSB Revision

POWER STEERING

37-15

MB991548
Power steering oil 
pressure gauge 
adapter (Pump 
side)

MB991548-01

Oil pump pressure test

MB991549
Power steering oil 
pressure gauge 
adapter (Hose 
side)

MB991549-01

MB990662
Power steering oil 
pressure gauge

MB990662-01

MB990784
Ornament remover

General service 
tool

Cover removal

MB990803
Steering wheel 
puller

General service 
tool

Steering wheel removal

MB990228 or 
MB991006
Preload socket

MB990228-01

Steering gear total pinion torque 
check

MB990925
Bearing and oil 
seal installer set

MB990925-01 or 
general service 
tool

• Oil seal and bearing installation
• MB990927, MB990938, MB990939 

(For details, refer to GROUP 26 − 

Special Tools 

P.26-6

).

MB991203
Oil seal and 
bearing installer

Tool not available Oil seal and bearing installation

Tool

Tool number and 
name

Supersession

Application

MB991548

MB991549

MB990662

MB990784

MB990803

MB991006

MB990925

MB991203

ON-VEHICLE SERVICE

TSB Revision

POWER STEERING

37-16

ON-VEHICLE SERVICE

STEERING WHEEL FREE PLAY CHECK

M1372001001080

1. With the engine running (hydraulic pressure applied), 

position the front wheel in the straight ahead position.

2. Measure the side to side steering wheel play until the front 

wheels actually start moving while turning the steering wheel 
slightly in the left and right directions.

Limit: 30 mm (1.2 inch) or less

3. If the steering wheel play exceeds the limit value, check the 

steering shaft joint or steering linkage for looseness, and 
replace or repair the faulty components if necessary.

4. If the steering wheel play still exceeds the limit value after 

Step 3 is performed, position the steering wheel in the 
straight ahead position, and then apply the force 
(approximately 5 N) in the circumferential direction.

Standard value (steering wheel play with the engine 
stopped): 16.5 mm (0.65 inch) or less

5. If the steering wheel play is outside the standard value after 

Step 4 is performed, remove the steering gear and linkage 
(Refer to 

P.37-38

), and check and adjust the pinion total 

rotation torque. (Refer to 

P.37-38

).

STEERING ANGLE CHECK

M1372001101485

CAUTION

After adjusting the steering angle, perform calibration to 
make the ASC-ECU learn the neutral position of the steer-
ing wheel sensor. (Refer to GROUP 35C 
 On-vehicle Ser-

vice, Steering Wheel Sensor Calibration 

P.35C-289

.)

1. Check that the wheel alignment is normal. (Refer to GROUP 

33 − On-vehicle Service, Wheel Alignment Check and 

Adjustment (Refer to 

P.33-8

.)

MB992209
Bellows band 
crimping tool

MB992209

Bellows band installation

MB992249

Variable spanner

Tie-rod removal and installation

Tool

Tool number and 
name

Supersession

Application

MB992209

MB992249

ON-VEHICLE SERVICE

TSB Revision

POWER STEERING

37-17

2. Place the front wheel onto the turning radius gauge, and 

measure the steering angle.

Standard value:

3. If the measured value is not within the standard value, adjust 

the tie-rod ends (right and left), and repeat Steps 1 and 2.

4. If the measured value is not within the standard value after 

performing Step 3, replace the steering gear and linkage 
assembly. (Refer to 

P.37-38

.)

TIE-ROD LOOSENESS CHECK

M1372018200210

When an abnormal noise is generated by the steer-
ing system, check the tie-rod for looseness. For the 
tie-rod looseness check, using a push-pull gauge 
and a spring scale, carry out the items below.

• Install a dial gauge.

• Check the points to load for a push-pull gauge 

and a spring scale.

• Operate to stabilize the load and fluctuation with 

a push-pull gauge and a spring scale.

• Carry out the dial gauge measurement and calcu-

lation with a push-pull gauge and a spring scale.

WHEN THE PUSH-PULL GAUGE IS USED

1. Before the looseness check, check the items below.

(1) Check that the Mitsubishi genuine wheel with specified 

size is mounted. Also check that the wheel bearing is not 
loose. (Refer to GROUP 26 − On-vehicle Service − Wheel 

Bearing Check for Looseness in the Axial Direction 

P.26-7

.)

(2) Raise the vehicle at the jack up point on the side sill of 

the inspection side, and lift the tire for approximately 30 
mm. At this time, check that the tire of the opposite side is 
grounded.

2. Install a dial-gauge respectively to the "Position a (front side 

position)" and "Position b (rear side position)" on the wheel 
rim, 25 mm below from the wheel center. (Install the dial 
gauges to the smooth position that is around the edge of the 
tire.)

Inner wheel

33° 10' ± 1° 30'

(Left/right deviation 
within 2° 00’)

Outer wheel (reference value)

28° 10'

AC000756AB

AC703667

198 mm (7.8 in)

AE

Jam nut

Edge of bellows
assembly groove

AC701745

AF

Wheel center

25 mm

Measurement 
position

Position b

Vehicle front

Position a

ON-VEHICLE SERVICE

TSB Revision

POWER STEERING

37-18

3. The push-pull gauge shall be set to the smooth position that 

is 25 mm above from the wheel center and the edge of the 
tire on the wheel rim. Then the position on the vehicle front 
side shall be the "Position A" and the vehicle rear side shall 
be the "Position B".

4. To stabilize the relationship between the load and 

fluctuation, push with the specified load by 100N of "Position 
A, "Position B", and "Position A" using the push-pull gauge. 
Note that the pushed load on each position shall be 
extracted.

5. Using the push-pull gauge, carry out the procedure below to 

read the value on the dial gauge and calculate the 
looseness.
NOTE: The +/

 sign acquired with the calculation result shall 

be used as it is.

AC808016

Front of
vehicle

AB

A

B

AC808583

AB

Wheel center

25 mm

Point of load

· Smooth position around the edge of 
  the tire on the wheel rim

Position B

AB

Vehicle front

Position A

AC901674

AB

Push-pull gauge

Point of load for the push-pull gauge

Vehicle front

Position B

Position A

 

 

 

 

 

 

 

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