Mitsubishi Montero (2002-2004). Manual - part 830

CRANKSHAFT OIL SEAL

TSB Revision

ENGINE MECHANICAL

11A-25

INSPECTION

M1112002600101

• Check the oil pan for cracks.

• Check the oil pan sealant-coated surface for damage and 

deformation.

• Check the oil screen for cracked, clogged or damaged wire 

net and pipe.

CRANKSHAFT OIL SEAL

REMOVAL AND INSTALLATION <FRONT OIL SEAL>

M1112003400393

Required Special Tool:
MD998717: Crankshaft Front Oil Seal Installer

Pre-removal and Post-installation Operation
• Timing Belt Removal and Installation (Refer to 

P.11A-33

.)

ACX00362AC

N

1

2

3

4

5

6

6

8.5 ± 0.5 N·m
76 ± 4 in-lb

ENGINE OIL

REMOVAL STEPS

>>B<<

1.

CRANKSHAFT SPROCKET

2.

CRANKSHAFT POSITION 
SENSOR

>>B<<

3.

CRANKSHAFT SENSING BLADE

>>B<<

4.

CRANKSHAFT SPACER

5.

KEY

>>A<<

6.

CRANKSHAFT FRONT OIL SEAL

REMOVAL STEPS (Continued)

CRANKSHAFT OIL SEAL

TSB Revision

ENGINE MECHANICAL

11A-26

INSTALLATION SERVICE POINT

.

>>A<< CRANKSHAFT FRONT OIL SEAL INSTALLATION
1. Apply a small amount of engine oil to the oil seal lip and then 

insert.

2. Using special tool MD998717, tap the oil seal into the front 

case.

.

>>B<< CRANKSHAFT SPACER / CRANKSHAFT SENSING 
BLADE / CRANKSHAFT SPROCKET INSTALLATION
To prevent the crankshaft pulley mounting bolt from loosening, 
degrease or clean the crankshaft, the crankshaft spacer, the 
crankshaft sensing blade and the crankshaft at the shown posi-
tions.

ACX00363AB

OIL SEAL

MD998717

CRANKSHAFT

MD998717

ACX01536AB

CRANKSHAFT

CRANKSHAFT

SPACER

CRANKSHAFT

SENSING BLADE

CRANKSHAFT

SPROCKET

SHADED PART : DEGREASE

CLEANING

CRANKSHAFT OIL SEAL

TSB Revision

ENGINE MECHANICAL

11A-27

REMOVAL AND INSTALLATION <REAR OIL SEAL>

M1112003700394

Required Special Tools:
MD998718: Crankshaft Rear Oil Seal Installer

MD998781: Flywheel Stopper

REMOVAL SERVICE POINT

.

<<A>> DRIVE PLATE BOLT REMOVAL
Use special tool MD998781 to secure the drive plate and 
remove the drive plate bolt.

Pre-removal and Post-installation Operation
• Transmission and Transfer Assembly Removal and Instal-

lation (Refer to GROUP 23 

P.23Aa-37

.)

ACX00359

1

2

3

4

5

5

ENGINE OIL

(LIP PORTION)

N

AE

74 ± 2 N·m
55 ± 1 ft-lb

REMOVAL STEPS

<<A>>

>>B<<

1.

DRIVE PLATE BOLT

2.

ADAPTOR PLATE

3.

DRIVE PLATE

4.

CRANKSHAFT ADAPTOR

>>A<<

5.

CRANKSHAFT REAR OIL SEAL

REMOVAL STEPS (Continued)

ACX00296AB

MD998781

CRANKSHAFT OIL SEAL

TSB Revision

ENGINE MECHANICAL

11A-28

INSTALLATION SERVICE POINTS

.

>>A<< CRANKSHAFT REAR OIL SEAL INSTALLATION
1. Apply a small amount of engine oil to the entire 

circumference of the oil seal lip.

2. Use special tool MD998718 to tap in the oil seal as shown in 

the illustration.

.

>>B<< DRIVE PLATE BOLT INSTALLATION
Use special tool MD998781 in the same way as during removal 
to install the drive plate bolt.

ACX00356AB

MD998718