Mitsubishi Montero (2004+). Manual - part 1164

POWER STEERING OIL PUMP ASSEMBLY

TSB Revision

POWER STEERING

37A-45

POWER STEERING OIL PUMP ASSEMBLY

REMOVAL AND INSTALLATION

M1372005200221

Pre-removal Operation
• Removal of Battery and Battery Tray

• Power Steering Fluid Draining (Refer to 

P.37A-18

.)

Post-installation Operation
• Power Steering Fluid Line Bleeding (Refer to 

P.37A-18

.)

• Installation of Battery and Battery Tray

• Drive Belt Tension Check (Refer to 

P.37A-17

.)

AC000667

3

2

4

1

22 

± 4 N

·

m

16 

± 3 ft-lb

AB

57 

± 7 N

·

m

42 

± 5 ft-lb

22 

± 4 N

·

m

16 

± 3 ft-lb

REMOVAL STEPS

1. DRIVE BELT (REFER TO GROUP 

11A, TIMING BELT 

P.11A-36

.)

2. CONNECTION OF SUCTION 

HOSE

3. CONNECTION OF PRESSURE 

TUBE 

4. OIL PUMP ASSEMBLY

REMOVAL STEPS (Continued)

POWER STEERING OIL PUMP ASSEMBLY

TSB Revision

POWER STEERING

37A-46

DISASSEMBLY AND ASSEMBLY

M1372005400236

CAUTION

Never disassemble the terminal assembly. It cannot be reassembled.

ACX01167 AC

OIL PUMP CARTRIDGE KIT

OIL PUMP SEAL KIT

7

6

6

3

5

8

4

9

20

11

22

6

16

14

18

12

2

10

7

18

12

17

11

16

15

14

10

2

9

8

13

4

5

3

6

19

1

22

21

20

24 

± 2 N

·

m

18 

± 1 ft-lb

9.9 

± 2.1 N

·

m

88 

± 18 in-lb

35 

± 4 N

·

m

26 

± 3 ft-lb

44 

± 5 N

·

m

32 

± 4 ft-lb

37 

± 2 N

·

m

27 

± 2 ft-lb

28 

± 2 N

·

m

20 

± 2 ft-lb

OIL PUMP PULLEY AND SHAFT KIT

: GENUINE MITSUBISHI POWER STEERING FLUID

DISASSEMBLY STEPS

1. PUMP COVER
2. O-RING
3. ADAPTER RING

>>E<<

4. VANES

>>D<<

5. CAM RING
6. SNAP RING
7. PULLEY AND SHAFT

>>C<<

8. ROTOR
9. SIDE PLATE

>>A<<

10. O-RING 

>>A<<

11. O-RING

>>B<<

12. OIL SEAL
13. TERMINAL ASSEMBLY

>>A<<

14. O-RING
15. INNER PLUG A

>>A<<

16. O-RING
17. INNER PLUG B

>>A<<

18. O-RING

DISASSEMBLY STEPS (Continued)

POWER STEERING OIL PUMP ASSEMBLY

TSB Revision

POWER STEERING

37A-47

Required Special Tools:

• MB990938: Bearing and Oil Seal Installer

• MB991203: Oil Seal and Bearing Installer

ASSEMBLY SERVICE POINTS

.

>>A<< O-RING INSTALLATION

.

>>B<< OIL SEAL INSTALLATION
Use special tool MB991203 and MB990938 to install the oil 
seal.

.

19. INNER PLUG C

>>A<<

20. O-RING
21. SUCTION CONNECTOR

>>A<<

22. O-RING

DISASSEMBLY STEPS (Continued)

NO.

ID 

× WIDTH mm (in)

1

6.8 

× 1.9 (0.27 × 0.07)

2

INNER PLUG A, C 12.4 

× 2.6 (0.49 × 0.10)

INNER PLUG B

14.8 

× 2.4 (0.58 × 0.09)

3

21 

× 1.9 (0.83 × 0.07)

4

14.8 

× 1.9 (0.58 × 0.07)

5

3.8 

× 1.9 (0.15 × 0.07)

6

15.8 

× 2.4 (0.62 × 0.09)

7

9.8 

× 1.9 (0.39 × 0.07)

8

6.8 

× 1.9 (0.27 × 0.07)

AC203965

SIDE PLATE

SUCTION CONNECTOR

PUMP BODY

3

1 (C)

6

5

4

7

8

AB

2 (A,B,C)

TERMINAL 
ASSEMBLY

INNER PLUG
A,B,C

AC000752

MB990938

AB

MB991203

POWER STEERING OIL PUMP ASSEMBLY

TSB Revision

POWER STEERING

37A-48

>>C<< ROTOR INSTALLATION
Install the rotor to the pulley assembly so that the rotor's punch 
mark is at the pump cover side.

.

>>D<< CAM RING INSTALLATION
Install the cam ring with its identification mark towards the side 
plate.

.

>>E<< VANE INSTALLATION
Install the vane to the rotor with its round edge outwards (facing 
towards cam ring).

INSPECTION

M1372005500170

• Check the valve subassembly for clogging.

• Check the driveshaft assembly for wear or damage.

• Check the rotor and vane groove for "stepped" wear.

• Check the contact surface of cam ring and vanes for 

"stepped" wear.

• Check the vanes for damage.

AC000753 AB

PUNCH MARK

AC000754 AB

IDENTIFICATION 
MARK

AC000755AB

VANE

ROUND EDGE