Mitsubishi Evolution X. Manual — part 873
AC703667
198 mm (7.7in)
AC
Lock nut
Edge of bellows
assembly groove
ON-VEHICLE SERVICE
TSB Revision
POWER STEERING
37-15
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
TIE ROD END BALL JOINT DUST COVER CHECK
M1372008600701
1. Using your fingers, press the dust cover to check for cracks
or damage.
2. If there are any cracks in the dust cover or it is damaged,
replace the tie-rod end (Refer to
NOTE: If the dust cover has a crack or damage, the ball
joint could be damaged.
TIE ROD END BALL JOINT BREAKAWAY
TORQUE CHECK
M1372011600217
Required Special Tools:
• MB990326: Preload Socket
• MB991897 or MB992011: Ball Joint Remover
CAUTION
• Loosen the self-locking nut (tie-rod end connection)
from the ball joint, but do not remove here. Use the spe-
cial tool.
•
AC208247AJ
Cord
Bolt
MB991897
or
MB992011
Nut
Ball joint
To prevent the special tool from dropping off, suspend
it with a rope.
1. Install special tool MB991897 or MB992011 as shown in the
figure.
AC104739AB
Parallel
Knob
Bolt
Correct
Wrong
ON-VEHICLE SERVICE
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POWER STEERING
37-16
2. Turn the bolt and knob to make the special tool jaws parallel,
then hand-tighten the bolt. After tightening, check that the
jaws are still parallel.
NOTE: To adjust the special tool jaws to be parallel, set the
orientation of the knob as shown in the figure.
3. Unscrew the bolt to disconnect the ball joint.
ACX01129 AB
MB990326
4. Move the ball joint stud several times and install the nut on
the stud. Using the special tool MB990326, measure the ball
joint breakaway torque.
Standard value: 2.9 N
⋅ m (26 in-lb) or less
5. If the breakaway torque exceeds the standard value, replace
the tie rod end.
6. If the breakaway torque is under the standard value, check
the ball joint for end play or ratcheting. If no end play or
ratcheting, the ball joint can be re-used.
CAUTION
Always use a new ball joint nut as it is a self-locking nut.
7. Install the tie rod end to the knuckle, then tighten a new
self-locking nut to the specified torque.
Tightening torque: 40
± 8 N⋅ m (30 ± 5 ft-lb)
STATIONARY STEERING EFFORT CHECK
M1372001700945
1. Park the vehicle on a level paved road, position the steering
wheel in the straight ahead position.
2. Start the engine, and maintain the engine speed at 1000
±
100 r/min.
AC609390AB
3. Position the spring scale on the circumference of the
steering wheel, and measure the steering force at the time
when the steering wheel is turned to right or left side (within
the range of one and a half turns) from the center position.
Standard value:
Steering force: 32 N (7.2 lb) or less
Fluctuation band: 5.9 N (1.33 lb) or less
4. If not within the standard value, check and adjust the
suspected components.
ON-VEHICLE SERVICE
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POWER STEERING
37-17
STEERING WHEEL RETURN TO CENTER CHECK
M1372001800715
Conduct a road test:
1. Make both gradual and sudden turns and check the steering
wheel return.
AC000989AC
70˚ or
more
70˚ or
more
2. At a vehicle speed of approximately 35 km/h (22 mph), turn
the steering wheel 90 degrees, hold a few seconds, then
release. If the steering wheel then returns 70 degrees or
more, the return can be judged satisfactory.
NOTE: There will be a momentary feeling or "heaviness"
when the wheel is turned quickly, but this is not abnormal
(Oil pump discharge amount is especially apt to be insuffi-
cient during idling).
DRIVE BELT TENSION CHECK AND
ADJUSTMENT
M1372001900864
Refer to GROUP 11A
− Engine Adjustment, and Drive Belt Ten-
sion Check and Adjustment
.)
FLUID LEVEL CHECK
M1372002000648
1. Park the vehicle on a flat, level surface.
2. Start the engine, and then turn the steering wheel several
times to raise the temperature of the fluid to approximately
50
− 60° C (122 − 140° F).
3. With the engine running, turn the wheel all the way to the left
and right several times.
AC608306
With engine stopped
AC
Fluid level change: Within 5 mm (0.2 in)
With engine running
4. Check the fluid in the oil reservoir for foaming or milkiness.
Check the difference of the fluid level when the engine is
stopped, and while it is running. If the change of the fluid
level is 5 mm (0.2 inch) or more, air bleeding should be done
(Refer to
).
ON-VEHICLE SERVICE
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POWER STEERING
37-18
FLUID REPLACEMENT
M1372002100902
1. Raise and support the front wheels.
AC507662 AB
Return hose
2. Disconnect the return hose connection, and then connect a
vinyl hose to the return hose, and drain the fluid into a
container.
AC705444 AB
Crank angle sensor
Oil filter
3. Disconnect the crank angle sensor connector.
4. While operating the starter motor intermittently, turn the
steering wheel all the way to the left and right several times
to drain all of the fluid.
5. Connect the return hose securely, and then secure with the
clip.
6. Fill the oil reservoir with GENUINE MITSUBISHI POWER
STEERING FLUID to the lower position of the filler, and then
bleed the air (Refer to
).
7. Install the crankshaft position sensor.
AC608435 AD
MUT-III main harness A
V. C. I.
USB cable
Data link connector
8. Use the scan tool MB991958, check if the DTC is set. If it is
set, erase it.
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