Mitsubishi Galant 9G. Manual — part 471

FRONT AXLE DIAGNOSIS

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FRONT AXLE

26-4

SYMPTOM PROCEDURES

INSPECTION PROCEDURE 1: Noise during Wheel Rotation

DIAGNOSIS

STEP 1. Check the wheel bearing end play.
(1) Remove the caliper assembly and suspend it with a wire.
(2) Remove the brake disc from the front hub.
(3) Attach a dial gauge as shown in the illustration, and then

measure the end play while moving the hub in the axial
direction.

Limit: 0.05 mm (0.002 inch)

Q: Is the wheel bearing end play within the limit?

YES : Go to step 2.
NO : Replace the part, then go to Step 5.

STEP 2. Check the drive shaft and inner shaft for bending.
Q: Is the drive shaft and inner shaft bent?

YES : Replace the part. Then go to Step 5.
NO : Go to step 3.

STEP 3. Check the center bearing for wear.
Q: Is the center bearing worn?

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

STEP4. Check the drive shaft assembly for wear or
damage.
Q: Is the drive shaft assembly worn or damaged?

YES : Replace the drive shaft assembly. Then go to Step 5.
NO : There is no action to be taken.

STEP 5. Retest the system.
Q: Is the abnormal noise eliminated?

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

AC102438

SPECIAL TOOLS

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FRONT AXLE

26-5

INSPECTION PROCEDURE 2: Noise Due to Excessive Play of Wheel in Turning Direction

DIAGNOSIS

STEP 1. Check for play in the inner shaft and side
gear serration, the drive shaft and side gear
serration, or the drive shaft and front hub
serration.

Q: Is the play found?

YES :

Replace the part. Then go to Step 2.

NO :

The procedure is complete.

STEP 2. Retest the system.

Q: Is the abnormal noise eliminated?

YES :

The procedure is complete.

NO :

Repeat from Step 1.

SPECIAL TOOLS

M1261000600405

TOOL

TOOL NUMBER
AND NAME

SUPERSESSION APPLICATION

MB990767
Front hub and
flange yoke
holder

MB990767-01

Fixing of the hub

MB991618
Hub bolt remover

General service
tool

Removal of the hub bolt

MB991897
Ball joint
remover

MB991113-01,
MB990635-01 or
General service
tool

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

MB990241 Axle
shaft puller

A: MB990242

Puller shaft

B: MB990244

Puller bar

MB990241-01 or
General service
tool

Removal of the drive shaft

MB991354
Puller body

General service
tool

B990767

MB991618

AC106827

MB990241AB

A

B

MB991354

SPECIAL TOOLS

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FRONT AXLE

26-6

MB990590 Rear
axle shaft oil seal
remover

A: MB990212

Adapter

B: MB990211

Slide hammer

−

Removal of the front wheel hub

A: MB991017
B: MB990998
C: MB991000
A, B: Front hub

remover and
installer

C: Spacer

MB990998-01

• Removal of the hub

• Provisional holding of the wheel

bearing

• Measurement of hub starting torque

• Measurement of wheel bearing end

play
NOTE: MB991000, which belongs to
MB990998, should be used as a
spacer.

MB990685
Torque wrench

General service
tool

Measurement of hub starting torque

MB990326
Preload socket

General service
tool

MB990810
Side bearing
puller

General service
tool

• Removal of the center bearing

bracket

• Removal of the wheel bearing inner

race (outside)

MB991172
Inner shaft
installer base

−

Press-fitting of the inner shaft

MB991248
Inner shaft
remover

MD998348-01 or
General service
tool

Removal of the inner shaft

TOOL

TOOL NUMBER
AND NAME

SUPERSESSION APPLICATION

MB990590

A

B

AC100320 AB

A

B

C

MB990326

MB990810

MB991248

SPECIAL TOOLS

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FRONT AXLE

26-7

MB991561
Boot band
crimping tool

MB991561

BJ boot (resin boot) band installation

MB990925
Bearing and oil
seal installer set

MB990925-01 or
General service
tool

• Removal and installation of the

center bearing

• Press-fitting of the dust seal outer,

inner

MB990890
Rear suspension
bushing base

MB990890-01

Press-fitting of the dust seal outer, inner

TOOL

TOOL NUMBER
AND NAME

SUPERSESSION APPLICATION

MB991561

MB990925

MB990890

TOOL

TYPE

TOOL NUMBER

O D mm (in)

A

MB990926

39.0 (1.54)

MB990927

45.0 (1.77)

MB990928

49.5 (1.95)

MB990929

51.0 (2.00)

MB990930

54.0 (2.13)

MB990931

57.0 (2.24)

MB990932

61.0 (2.40)

MB990933

63.5 (2.50)

MB990934

67.5 (2.66)

MB990935

71.5 (2.81)

MB990936

75.5 (2.97)

MB990937

79.0 (3.11)

B

MB990938

−

C

MB990939

−

ACX02372

A

B

C

BRASS BAR

BAR (SNAP-IN TYPE)

TOOL BOX

MB990925

AC

INSTALLER ADAPTER