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Mitsubishi Montero (2004+). Manual - part 1132

UPPER ARM ASSEMBLY

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FRONT SUSPENSION

33A-9

REMOVAL SERVICE POINT

<<A>> UPPER ARM BALL JOINT AND KNUCKLE DISCON-
NECTION

CAUTION

• Do not remove the nut from ball joint. Loosen it and use

special tool MB991897 to avoid possible damage to ball
joint threads.

• Hang special tool MB991897 with a cord to prevent it

from falling.

1. Install special tool MB991897 as shown in the figure.

2. Turn the bolt and knob as necessary to make the jaws of

special tool MB991897 parallel, tighten the bolt by hand and
confirm that the jaws are still parallel.
NOTE: When adjusting the jaws in parallel, make sure the
knob is in the position shown in the figure.

3. Tighten the bolt with a wrench to disconnect the ball joint.

INSTALLATION SERVICE POINT

>>A<< UPPER ARM BALL JOINT AND KNUCKLE CONNEC-
TION
If the upper arm ball joint is disengaged from the knuckle,
always renew the upper arm ball joint dust cover and retainer
by following the procedure below.
1. Unclip the spring ring to remove the dust cover.

CAUTION

Be careful not to damage the ball joint stud.
2. Use a flat-tipped screwdriver to remove the retainer.

AC106820 AB

CORD

BOLT

MB991897

NUT

BALL JOINT

AC106821

KNOB

PARALLEL

BOLT

GOOD

BAD

AC306265AC

RETAINER

STUD

UPPER ARM ASSEMBLY

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FRONT SUSPENSION

33A-10

3. Apply multi-purpose grease to the new retainer, and

assemble it to the new dust cover.

4. Fill multi-purpose grease inside the dust cover as shown.

Standard value: 12

± 1 g (0.4 ± 0.04 oz)

5. Apply multi-purpose grease to the dust cover lip.
6. Tape the stud threads to avoid damage.

CAUTION

Ensure grease does not come into contact with the ball
joint threads and tapers.Wipe off the grease if contami-
nated.

7. Install the ball joint to the dust cover.
8. Secure the dust cover with the clip ring.
9. Engage the upper arm ball joint with the knuckle.

NOTE: The retainer is secured in a predetermined position
by tightening the ball joint nut to the specified torque.

INSPECTION

M1332004400068

• Check the bushing for wear and deterioration.

• Check the upper arm for bend or breakage.

• Check all bolts for condition and straightness.

UPPER ARM BALL JOINT TURNING TORQUE CHECK

Required Special Tool:

• MB990326: Preload Socket

1. After shaking the ball joint stud several times, install the nut

to the stud and use special tool MB990326 to measure the
turning torque of the ball joint.

Standard value: 0.4

− 2.5 N⋅m (4 − 22 in-lb)

2. If the measured value exceeds the standard value, replace

the upper arm ball joint assembly.

3. If the measured value is lower than the standard value,

check that the upper arm ball joint turns smoothly without
excessive play. If so, it is possible to use that ball joint.

AC306266

RETAINER

DUST COVER

AC306267

28 mm
(1.1 in)
OR MORE

AC306268

DUST COVER

CLIP RING

ACX00716

MB990326

SHOCK ABSORBER ASSEMBLY

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FRONT SUSPENSION

33A-11

UPPER ARM BALL JOINT DUST COVER CHECK
1. Press the dust cover with your finger to check that there are

no cracks or damage in the dust cover.

2. If the dust cover is cracked or damaged, replace the upper

arm ball joint assembly.
NOTE: If the dust cover is cracked or damaged, it is possible
that there may also be damage to the ball joint.

SHOCK ABSORBER ASSEMBLY

REMOVAL AND INSTALLATION

M1332004600051

CAUTION

To prevent bushings from breakage, the parts indicated by * should be temporarily tightened, and
then fully tightened with the vehicle on the ground in the unladen condition.

Pre-removal Operations
• Upper Arm Assembly Removal (Refer to

P.33A-8

• Battery, Battery Tray Removal

• Condenser Tank Removal (Refer to GROUP 14, Radiator

P.14-8

• Air Cleaner Assembly Removal (Refer to GROUP 15, Air

Cleaner

P.15-6

Post-installation Operations
• Air Cleaner Assembly Installation (Refer to GROUP 15,

Air Cleaner

P.15-6

• Condenser Tank Installation (Refer to GROUP 14, Radia-