Mitsubishi Montero Sport (2004+). Manual — part 407

FRONT AXLE DIAGNOSIS

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FRONT AXLE

26-9

INSPECTION PROCEDURE 9: Oil leakage

DIAGNOSIS

STEP 1. Check the vent plug for clogging.
Q: Is the vent plug clogged?

YES : Clean or replace the part. Then go to Step 5.
NO : Go to step 2.

STEP 2. Check the cover installation.
Q: Is the cover installed properly?

YES : Go to Step 3.
NO : Repair. Then go to Step 5.

STEP 3. Check the oil seal for wear or damaged.
Q: Is the oil seal worn or damaged?

YES : Replace the seal. Then go to Step 5.
NO : Go to Step 4.

STEP 4. Check the oil level.

Remove the filler plug and check the gear oil level.
Q: Is the gear oil level more than 8 mm (0.3 inch) below the

bottom of the filler plug hole?
YES : Refill Hypoid gear oil API classification GL-5 or

higher; Above

−23°C(−10°F): SAE 90, 85W-90,

80W-90, From

−34 to −23°C(−30 to −10°F): SAE

80W, 80W-90, Below

−34°C(−30°F): SAE 75W. Then

go to Step 5.

NO : There is no action to be taken.

STEP 5. Retest the system.
Q: Is there oil leakage?

YES : The procedure is complete.
NO : Repeat to Step 1.

AC000439

UPPER LIMIT

LOWER LIMIT

AB

8 mm (0.3 in)

SPECIAL TOOLS

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FRONT AXLE

26-10

SPECIAL TOOLS

M1261000600427

TOOL

TOOL NUMBER
AND NAME

SUPERSESSION APPLICATION

MB990954
Lock nut wrench

MB990954-01

Removal and adjustment of jam nut

MB990925
Bearing and oil
seal installer set

MB990925-01 or
General service
tool

• Press-fitting of wheel bearing outer

race MB990935 MB990938

• Press-fitting of oil seal (differential

carrier)

• Press-fitting of drive pinion rear

bearing outer race MB990934
MB990938

• Press-fitting of drive pinion front

bearing outer race MB990936
MB990938

MB990955
Oil seal installer

MB990955-01

• Press-fitting of front hub oil seal

(Used together with MB990938)

• Press-fitting of housing tube dust

seal (Used together with MB990938)

MB991897
Ball joint
remover

MB991113-01,
MB990635-01 or
General service
tool

Ball joint removal
NOTE: Steering linkage puller
(MB990635 or MB991113) is also used
to disconnect knuckle and tie rod end
ball joint.

MB990956
Needle bearing
installer

MB990956-01

Press-fitting of knuckle needle bearing
(used together with MB990938)

MB990956
MB990985
Oil seal installer

MB990985-01

Press-fitting of knuckle oil seal (used
together with MB990938)

MB991561
Boot band
crimping tool

MB991561

Resin boot band installation

B990954

MB990925

MB990955

AC106827

MB990956

MB990985

MB991561

SPECIAL TOOLS

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FRONT AXLE

26-11

MB990906
Driveshaft
attachment

MB990241-01

Removal and installation of inner shaft

MB990590
Rear axle shaft
oil seal remover

A: MB990212

Adapter

B: MB990211

Slide hammer

−

MB990560
Bearing remover

MD998348-01

Removal and press-fitting of inner shaft
bearing

MB990909
Working base

−

Supporting of front differential carrier
assembly

MB991116
Adapter

−

MB990810
Side bearing
puller

MB990810-01

Wheel bearing inner race (outside)
removal

MB990811
Differential side
bearing cap

MB990811-01

TOOL

TOOL NUMBER
AND NAME

SUPERSESSION APPLICATION

MB990906

MB990590

A

B

MB990560

MB990909

MB990810

MB990811

SPECIAL TOOLS

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FRONT AXLE

26-12

MB990767
End yoke holder

MB990767-01

Removal and installation of companion
flange

MB990339
Bearing puller

MB990339-01

Removal of drive pinion front bearing
inner race

MB990648
Bearing remover

MB990648-01

MB991171
Pinion height
gauge set

A: MB990819

Drive pinion
gauge
assembly

B: MB991170

Cylinder
gauge

−

• Inspection of drive pinion rotation

starting torque

• Measurement of drive pinion height

MB990326
Preload socket

General service
tool

Measurement of wheel bearing turning
torque

TOOL

TOOL NUMBER
AND NAME

SUPERSESSION APPLICATION

B990767

MB990339

MB990648

MB990326