Mitsubishi Montero (2004+). Manual - part 117

 

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Mitsubishi Montero (2004+). Manual - part 117

 

 

ROCKER ARMS AND CAMSHAFT

TSB Revision

ENGINE OVERHAUL

11B-27

2. Place the lash adjuster in container A and clean its outside 

surface.
NOTE: Use a nylon brush if deposits are hard to remove.

CAUTION

The steel ball spring is extremely weak, so the lash 
adjuster's functionality may be lost if the air bleed wire is 
pushed in hard.
3. While gently pushing down the internal steel ball using wire 

[0.5 mm (0.020 inch) in diameter] or special tool MD998442, 
move the plunger through five to ten strokes until it slides 
smoothly. In addition to eliminating stiffness in the plunger, 
this operation will remove dirty oil.
NOTE: If the plunger remains stiff or the mechanism 
appears otherwise abnormal, replace the lash adjuster.

4. Remove the lash adjuster from the container. Then, push 

down the steel ball gently and push the plunger to eliminate 
diesel fuel from the pressure chamber.

CAUTION

The steel ball spring is extremely weak, so the lash 
adjuster's functionality may be lost if the air bleed wire is 
pushed in hard.
5. Place the lash adjuster in container B. Then, gently push 

down the internal steel ball using a wire [0.5 mm (0.020 
inch) in diameter] or special tool MD998442 and move the 
plunger through five to ten strokes until it slides smoothly. 
This operation will clean the lash adjuster's pressure 
chamber.

6. Remove the lash adjuster from the container. Then, push 

down the steel ball gently and push the plunger to eliminate 
diesel fuel from the pressure chamber.

AKX00626

DIESEL
FUEL

AB

AKX00628

WIRE OR MD998442

DIESEL FUEL

AB

AKX00629

DIESEL FUEL

AB

WIRE OR MD998442

AKX00628

WIRE OR MD998442

DIESEL FUEL

AB

AKX00629

DIESEL FUEL

AB

WIRE OR MD998442

ROCKER ARMS AND CAMSHAFT

TSB Revision

ENGINE OVERHAUL

11B-28

CAUTION

Do not use container C for cleaning. If cleaning is per-
formed in container C, foreign matter could enter the pres-
sure chamber when the chamber is filled with diesel fuel.
7. Place the lash adjuster in container C. Then, gently push 

down the internal steel ball using a wire [0.5 mm (0.020 
inch) in diameter] or special tool MD998442.

8. Stand the lash adjuster with its plunger at the top, then push 

the plunger downward firmly until it moves through its 
greatest possible stroke. Return the plunger slowly, then 
release the steel ball and allow the pressure chamber to fill 
with diesel fuel.

9. Remove the lash adjuster from the container, then stand the 

lash adjuster with its plunger at the top. Push the plunger 
firmly and check that it does not move. 
NOTE: If the lash adjuster contracts or moves, perform the 
operations (7) through (9) again to fill it with diesel fuel com-
pletely. Replace the lash adjuster if it still contracts or moves 
after performing these steps.

10.Stand the lash adjuster upright to prevent diesel fuel from 

spilling out. Do not allow the lash adjuster to become 
contaminated by dirt or other foreign matter. Fit the lash 
adjuster onto the engine as soon as possible.

AKX00630

WIRE OR MD998442

DIESEL FUEL

AB

AKX00631

WIRE OR MD998442

DIESEL
FUEL

AB

AKX00627

CYLINDER HEAD AND VALVES

TSB Revision

ENGINE OVERHAUL

11B-29

CYLINDER HEAD AND VALVES

REMOVAL AND INSTALLATION

M1113006900497

AKX00644

108 ± 5 N·m
80 ± 4 ft-lb

    0 N·m
    0 in-lb

108 ± 5 N·m
80 ± 4 ft-lb

1

5

2

6

7

13

3

14

9

11

16

17

19

12

10

21

18

22

20

8

4

AE

APPLY ENGINE OIL
TO ALL MOVING
PARTS BEFORE
INSTALLATION.

15

REMOVAL STEPS

<<A>> >>D<<

1. CYLINDER HEAD BOLT
2. WASHER
3. CYLINDER HEAD ASSEMBLY
4. CYLINDER HEAD GASKET

<<B>> >>C<<

5. RETAINER LOCK
6. VALVE SPRING RETAINER

>>B<<

7. VALVE SPRING
8. INLET VALVE 

<<B>> >>C<<

9. RETAINER LOCK
10. VALVE SPRING RETAINER

>>B<<

11. VALVE SPRING

12. EXHAUST VALVE

>>A<<

13. VALVE STEM SEAL
14. VALVE SPRING SEAT

>>A<<

15. VALVE STEM SEAL
16. VALVE SPRING SEAT
17. INLET VALVE GUIDE
18. SNAP RING
19. EXHAUST VALVE GUIDE
20. INLET VALVE SEAT
21. EXHAUST VALVE SEAT
22. CYLINDER HEAD

REMOVAL STEPS (Continued)

CYLINDER HEAD AND VALVES

TSB Revision

ENGINE OVERHAUL

11B-30

Required Special Tools:

• MD998051: Cylinder Head Bolt Wrench

• MD998772: Valve Spring Compressor

• MD998774: Valve Stem Seal Installer

REMOVAL SERVICE POINTS

.

<<A>> CYLINDER HEAD BOLT REMOVAL
Use special tool MD998051 to loosen the cylinder head bolt.

.

<<B>> RETAINER LOCK REMOVAL
1. Using special tool MD998772, compress the spring.
2. Remove the retainer locks.

INSTALLATION SERVICE POINTS

.

>>A<< VALVE STEM SEAL INSTALLATION
1. Install the valve spring seat.

CAUTION

• Valve stem seals for intake valves and for exhaust 

valves are different. Be sure to install the correct ones.

• Valve stem seal identification color.

Intake: GRAY
Exhaust: GRAY GREEN

AK302682AB

MD998051

AKX00617

MD998772

AB

AK302838

RUBBER COLOR:
GRAY

INTAKE

EXHAUST

RUBBER COLOR:
GRAY GREEN

AB

 

 

 

 

 

 

 

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