Mitsubishi Lancer Evolution 7. Manual — part 330
STEERING -
Steering Shaft
37A-15
DISASSEMBLY AND REASSEMBLY
1
2
3
4
5
6
7
Disassembly steps
A
A" "AA 1. Special bolt
"
AA 2. Steering lock bracket
"
AA 3. Steering lock cylinder assembly
4. Snap ring
5. Steering shaft assembly
6. Tilt spring
7. Steering column assembly
DISASSEMBLY SERVICE POINT
A
A" 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
"
AA STEERING 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.
Steeringlock
bracket
Steering lock body
Special bolt
Left-hand tap
STEERING - Power Steering Gear Box and Linkage
37A-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
D
Clock Spring Removal (Refer to GROUP 52B.)
D
Power Steering Fluid Draining (Refer to P.37A-9.)
Post-installation Operation
D
Clock Spring Installation (Refer to GROUP 52B.)
D
Power Steering Fluid Supplying and bleeding
(Refer to P.37A-9.)
D
Checking Steering Wheel Position with Wheels
Straight Ahead
<L.H. drive vehicles>
1
7
6
3
4
57 ± 7 N·m
5
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.)
D
Rear roll stopper(Refer to GROUP 32.)
2. Joint cover grommet
3. Return hose
4. Return tube
5. 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 Linkage
37A-17
1
7
6
2
3
4
15 ± 3 N·m
57 ± 7 N·m
5
70 ± 10 N·m
<R.H. drive vehicles>
Removal steps
1. Crossmember
(Refer to GROUP 32.)
2. Joint cover grommet
3. Return hose connection
4. Return tube
5. Pressure hose connection
6. Clamp
7. Steering gear and linkage
INSPECTION
GEAR BOX PINION TOTAL ROTATION TORQUE CHECK
Caution
Secure the steering gear box and linkage in their mounting
positions only. Otherwise, deformation or damage could
result.
1. Using the special tool, turn the pinion gear at a speed
of one rotation per 4 to 6 seconds to measure total rotation
torque.
Standard values:
Total rotation torque: 0.8 – 1.8 N·m
Torque fluctuation: 0.49 N·m or less
NOTE
(1) Remove the bellows from the rack housing before
measuring.
(2) Measure the total rotation torque by turning the special
tool left and right 180_ from the neutral position.
2. If the standard values are not met, adjust the pinion total
rotation torque. (Refer to P.37A-26.)
3. In case the adjustment is impossible, disassemble and
check the components, and repair if necessary.
MB991006
STEERING - Power Steering Gear Box and Linkage
37A-18
TIE ROD SWING RESISTANCE CHECK
1. Swing the tie rod 10 times hardly.
2. With the tie rod end downwards as shown, use a spring
scale to measure swing resistance (swing torque).
Standard value: 8 - 27 N (1.5 - 4.9 N·m)
3. If the measured value is above the standard value, replace
the tie rod.
4. If below, check the ball joint for looseness or ratcheting.
The tie rod is still serviceable when the ball joint swings
smoothly.
TIE ROD END BALL JOINT DUST COVER CHECK
1. Check the dust cover for cracks or damage by pushing
it with finger.
2. If the dust cover is cracked or damaged, replace the
tie rod end. (Refer to P.37A-19, 20.)
NOTE
A cracked or damaged dust cover may damage the ball
joint. Replace the dust cover when it is damaged during
service work.
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