Mitsubishi Montero (2002-2004). Manual - part 831

CYLINDER HEAD GASKET

TSB Revision

ENGINE MECHANICAL

11A-29

CYLINDER HEAD GASKET

REMOVAL AND INSTALLATION

M1112004000525

Pre-removal and Post-installation Operation
• Intake Manifold Removal and installation (Refer to 

GROUP 15, Intake Manifold 

P.15-7

.)

• Timing Belt Removal and installation (Refer to 

P.11A-33

.)

• Front Exhaust Pipe Removal and Installation (Refer to 

GROUP 15, Exhaust and Main Muffler 

P.15-13

.)

AC204259AB

1

2

3

4

5

6

7

8

9

10

12

17

N

N

N

N

N

14 ± 1 N·m
120 ± 13 in-lb

19 ± 1 N·m
14 ± 1 ft-lb

11

10

14 ± 1 N·m
120 ± 13 in-lb

<COLD ENGINE>
108 ± 5 N·m
80  ± 3 ft-lb

<COLD ENGINE>
108 ± 5 N·m
80  ± 3 ft-lb

3.5 ± 0.5 N·m
31 ± 4 in-lb

3.5 ± 0.5 N·m
31 ± 4 in-lb

13

14

15

16

18

16

18

14 ± 1 N·m
120 ± 13 in-lb

13 ± 2 N·m
111 ± 22 in-lb

39 ± 3 N·m
29 ± 2 ft-lb

19

19

BACK OFF

108 ± 5 N·m
80  ± 3 ft-lb

BACK OFF

108 ± 5 N·m
80  ± 3 ft-lb

N

REMOVAL STEPS

1.

WATER OUTLET PIPE 
ASSEMBLY

>>C<<

2.

O-RING

3.

HEATER HOSE CONNECTION

4.

HEATER HOSE CONNECTION

>>D<<

5.

WATER PASSAGE ASSEMBLY

>>D<<

6.

GASKET

7.

WATER PIPE ASSEMBLY

>>C<<

8.

O-RING

9.

BREATHER HOSE

10. SPARK PLUG CABLE
11. IGNITION COIL
12. OXYGEN SENSOR 

CONNECTOR

13. ENGINE OIL DIPSTICK 

ASSEMBLY

14. O-RING
15. INTAKE MANIFOLD PLENUM 

STAY

REMOVAL STEPS (Continued)

CYLINDER HEAD GASKET

TSB Revision

ENGINE MECHANICAL

11A-30

Required Special Tool:
MD998051: Cylinder Head Bolt Wrench

REMOVAL SERVICE POINT

.

<<A>> CYLINDER HEAD ASSEMBLY REMOVAL
Use special tool MD998051 to tighten each bolt two or three 
steps in the order shown in the illustration.

INSTALLATION SERVICE POINTS

.

>>A<< CYLINDER HEAD GASKET INSTALLATION
1. Degrease the cylinder head and cylinder block gasket 

mounting surfaces.

2. Make sure that the gasket has the proper identification mark 

for the engine.

3. Lay the cylinder head gasket on the cylinder block with the 

identification mark at the front top.

.

16. ROCKER COVER
17. CAMSHAFT POSITION 

SENSOR CONNECTOR

<<A>>

>>B<<

18. CYLINDER HEAD ASSEMBLY

>>A<<

19. CYLINDER HEAD GASKET

REMOVAL STEPS (Continued)

ACX00352AB

MD998051

EXHAUST SIDE

EXHAUST SIDE

INTAKE SIDE

RIGHT
BANK

LEFT
BANK

FRONT

1

2

3

4

5

6

7

8

8

7

4

1

5

6

2

3

ACX00349AB

IDENTIFICATION MARK

CYLINDER HEAD GASKET

TSB Revision

ENGINE MECHANICAL

11A-31

>>B<< CYLINDER HEAD ASSEMBLY INSTALLATION

CAUTION

Be careful that no foreign material gets into the cylinder, 
coolant passages or oil passages. Engine damage may 
result.
1. Use a scraper to clean the gasket surface of the cylinder 

head assembly.

CAUTION

Install the head bolt washers with the beveled side facing 
upwards as shown in the illustration.
2. Using special tool MD998051 and a torque wrench, tighten 

the bolts to the specified torque in the order shown in the 
illustration. (in two or three cycles)

Tightening torque: 108 

± 5 N⋅m (80 ± 3 ft-lb)

.

>>C<< O-RING INSTALLATION

CAUTION

Never apply lubricant such as engine oil to the O-ring. 
Install the O-ring into the groove of the pipe, and then apply 
water around the O-ring.

.

ACX00348

MD998051

EXHAUST SIDE

EXHAUST SIDE

FRONT

INTAKE SIDE

RIGHT
BANK

LEFT
BANK

CYLINDER 
BOLT 
WASHER

AB

1

2

3

4

5

6

7

8

8

7

4

1

5

6

2

3

ACX00758AB

PIPE

O-RING

CYLINDER HEAD GASKET

TSB Revision

ENGINE MECHANICAL

11A-32

>>D<< GASKET/WATER PASSAGE ASSEMBLY 
INSTALLATION
Bend the tabs onto the water passage assembly. Then install 
the water passage assembly to the cylinder head so that the 
gasket doesn't slip.

ACX00344AB

WATER PASSAGE 
ASSEMBLY

TABS

TABS

GASKET