Mitsubishi Montero Sport (2004+). Manual - part 409

FRONT AXLE HUB ASSEMBLY

TSB Revision

FRONT AXLE

26-17

<<B>> JAM NUT REMOVAL
Use special tool MB990954 to remove jam nut.

.

<<C>> FRONT HUB ASSEMBLY REMOVAL
Do not drop the outer bearing inner race.

INSTALLATION SERVICE POINT

.

>>A<< JAM NUT INSTALLATION
Using special tool MB990954 tighten the jam nut by the follow-
ing procedures.
1. Tighten the jam nut to 127 

− 196 N⋅m (94 − 145 ft-lb), and 

then turn the front hub assembly to run in the bearings.

2. Loosen the nuts to 0 N

⋅m (0 in-lb).

3. After re-tightening to 25 N

⋅m (18 ft-lb), loosen the jam nuts 

by approximately 30 degree angle.

.

>>B<< SPRING WASHER INSTALLATION
Install the lock washer. If the hole position is not aligned with 
the jam nut, move it within a range of not more than 20 degree 
angle until the holes are aligned.

.

AC004639

MB990954

AB

AC004640AB

OUTER
BEARING
INNER
RACE

AC004641 AB

MB990954

AC004642 AB

MAXIMUM 20˚

FRONT AXLE HUB ASSEMBLY

TSB Revision

FRONT AXLE

26-18

>>C<< HUB ROTARY SLIDING RESISTANCE AND WHEEL 
BEARING AXIAL MOVEMENT ADJUSTMENT <4WD>
1. Use a spring scale to measure the hub rotary sliding 

resistance (hub rotation breakaway torque) as shown in the 
illustration.

Standard value: 4 

− 19 N (0.9 − 4.3 lb) [0.3 − 1.3 N⋅m (2.7 

− 11.5 in-lb)]

2. If the rotary sliding resistance is not within the standard 

value, remove the lock washer and adjust by the following 
procedure.

(1) If the rotary sliding resistance is lower than the standard 

value, use special tool MB990954 to tighten the jam nut.

(2) If the rotary sliding resistance is higher than the standard 

value, use special tool MB990954 to loosen the jam nut.

3. Install a dial gauge as shown in the illustration, and then 

move the hub in the axial direction and measure how far the 
front wheel bearing moves.

Standard value: 0.05 mm (0.002 inch) or less

4. If the distance exceeds the standard value, remove the 

spring washer and use special tool MB990954 to tighten the 
jam nut.

5. If adjustment is not possible, disassemble the hub and 

inspect each part.

.

>>D<< DRIVESHAFT END PLAY ADJUSTMENT <4WD>
1. Push the driveshaft in by hand towards the knuckle until they 

touch.

2. Measure the clearance between the drive flange and the 

spacer with a feeler gauge as shown in the illustration.

Standard value: 0.4 

− 0.7 mm (0.02 − 0.03 inch)

3. If the amount of play is not within the standard value, adjust 

by selecting a shim that will bring the play to the standard 
value.

AC004643 AB

AC004644 AB

AC004633 AB

FRONT AXLE HUB ASSEMBLY

TSB Revision

FRONT AXLE

26-19

DISASSEMBLY AND ASSEMBLY

M1261001900238

Required Special Tools:

• MB990935: Installer Adapter 

• MB990938: Bar 

• MB990939: Brass Bar 

• MB990955: Oil Seal Installer 

DISASSEMBLLY SERVICE POINTS

.

<<A>> OUTER BEARING OUTER RACE/INNER BEARING 
OUTER RACE REMOVAL
Use special tool MB990939 to remove outer bearing outer race 
and inner bearing outer race.

.

AC004655 AC

5

3
2

8

1

4

4

1

8

7

6

5

3

2

22 N·m
16 ft-lb

49 - 59 N·m
36 - 43 ft-lb

 

  

DISASSEMBLY 

STEPS 

 

1.  OUTER BEARING INNER RACE

 >>B<<

2. OIL SEAL
3. INNER BEARING INNER RACE

 <<A>>  >>A<<

4.  OUTER BEARING OUTER RACE

 <<A>>  >>A<<

5.  INNER BEARING OUTER RACE

 

   

6.  ABS ROTOR <VEHICLES WITH 

ABS>

<<B>>  

7. BRAKE 

DISC

 

8.  FRONT HUB ASSEMBLY

 

  

DISASSEMBLY 

STEPS 

 

AC004656

OUTER BEARING
OUTER RACE

INNER BEARING
OUTER RACE

MB990939

AB

FRONT AXLE HUB ASSEMBLY

TSB Revision

FRONT AXLE

26-20

<<B>> BRAKE DISC REMOVAL

CAUTION

Lock disc in vise and grip with copper or aluminum board.
Make the mating marks on the brake disc and front hub, and 
then separate the front hub and brake disc, if necessary.

ASSEMBLY SERVICE POINTS

.

>>A<< INNER BEARING OUTER RACE/OUTER BEARING 
OUTER RACE INSTALLATION
Use special tools MB990938, MB990935 to install inner bear-
ing outer race and outer bearing outer race.
NOTE: Replace the inner race and outer race assembly as a 
set.

.

>>B<< OIL SEAL INSTALLATION
Use special tools MB990938, MB990955 to install oil seal.

AC004657 AB

MATING
MARKS

AC004658 AB

INNER BEARING
OUTER RACE

OUTER BEARING
OUTER RACE

MB990938

MB990935

AC004659AB

MB990938

MB990955