Mitsubishi Lancer Evolution VI. Manual - part 78

STEERING  – 

Steering Wheel and Shaft

37A-4

DISASSEMBLY SERVICE POINT

A

A

"

STEERING LOCK BRACKET / STEERING LOCK
CYLINDER REMOVAL

If it is necessary to remove the steering lock cylinder, use
a hacksaw to cut the special bolts at the steering lock bracket
side.

REASSEMBLY SERVICE POINT

"

A

A

STEERING LOCK CYLINDER/STEERING LOCK
BRACKET / SPECIAL BOLT INSTALLATION

1.

When installing the steering lock cylinder and steering
lock bracket to the column tube, temporarily install the
steering lock in alignment with the column boss.

2.

After checking that the lock works properly, tighten the
special bolts until the head twists off.

Caution
The steering lock bracket and bolts must be replaced
with new ones when the steering lock is installed.

Steering lock bracket

Steering lock cylinder

STEERING  – 

Power Steering Gear Box

37A-5

POWER STEERING GEAR BOX <L.H. DRIVE VEHICLES>

REMOVAL AND INSTALLATION

CAUTION: SRS
For vehicles with SRS, before removal of steering gear box, refer to GROUP 52B, centre front wheels and
remove ignition key. Failure to do so may damage SRS clock spring and render SRS system inoperative,
risking serious driver injury.

Pre-removal Operation

D

Power Steering Fluid Draining

D

Center Member Removal

D

Front Exhaust Pipe Removal

Post-installation Operation

D

Front Exhaust Pipe Installation

D

Center Member Installation

D

Power Steering Fluid Supplying

D

Power Steering Fluid Line Bleeding

D

Steering Wheel Position Check with Wheels Straight
Ahead

D

Front Wheel Alignment Adjustment

D

Dust Cover Check for Cracks or Damage by
Pushing it with Finger.

15 Nm

15 – 33 Nm

69 Nm

17 Nm

5 Nm

15 – 33 Nm

7

8

9

3

4

5

1

2

6

11 Nm

Removal steps

1. Steering shaft assembly and gear

box connecting bolt

2. Band
3. Split pin

A

A

"

4. Tie-rod end and knuckle connection

5. Return tube connection
6. Pressure tube connection
7. Cylinder clamp

A

B

"

8. Gear box assembly
9. Steering cover assembly

STEERING  – 

Power Steering Gear Box

37A-6

REMOVAL SERVICE POINTS

A

A

"

TIE-ROD END AND KNUCKLE DISCONNECTION

Caution
1.

In order not to damage the ball joint thread, the tie
rod end mounting nut must be only loosened but not
removed from the ball joint. Be sure to use the special
tool.

2.

Tie the special tool with a cord so as not to fall off.

A

B

"

GEAR BOX ASSEMBLY REMOVAL

Caution
Do not damage the bellows and the tie-rod end dust cover
when removing the gear box assembly.

INSPECTION

D

Check the rubber parts for cracks and breakage.

GEAR BOX TOTAL PINION TORQUE

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

Standard value: 0.9 – 1.7 Nm
[Change in torque: 0.4 Nm]

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

NOTE
When measuring, remove the bellows from the rack housing.
Measure the pinion torque through the whole stroke of the
rack.
If the measured value is not within the standard range, first
adjust the rack support cover, and then check the total pinion
starting torque again.

Cord

Ball joint

Nut

MB990635 or
MB991113

MB991006

STEERING  – 

Power Steering Gear Box

37A-7

If the total pinion starting torque cannot be adjusted to within
the standard range by adjusting the rack support cover, check
the rack support cover, rack support spring, rack support
and replace any parts if necessary.

CHECK THE TIE ROD FOR SWING RESISTANCE

1.

Give 10 hard swings to the tie rod.

2.

Measure the tie rod swing resistance with a spring balance.

Standard value: 5– 18 N [1.5– 4.9 Nm]

3.

If the measured value exceeds the standard value, replace
tie rod.

4.

Even if the measured value is below the standard value,
the tie rod which swings smoothly without excessive play
may be used.