Mitsubishi Evolution X. Manual - part 182

CYLINDER HEAD GASKET

TSB Revision

ENGINE MECHANICAL

11A-59

AC706764AC

30

26

29

24

N

23

20

18

21

22

N

28

N

19

25

27

N

12 ± 1 N·m
107 ± 8 in-lb

17 ± 3 N·m
13 ± 2 ft-lb  

Apply engine oil to all
moving parts before
installation.

(Engine oil)

(Engine oil)

12 ± 1 N·m
107 ± 8 in-lb

<Cold engine>
35 ± 2 N·m
26 ± 1 ft-lb

30 ± 2 N·m
23 ± 1ft-lb

to

to +90˚ to +90˚

<Cold engine>
35 ± 2 N·m
26 ± 1 ft-lb to +90˚ to +90˚

Removal steps 

•

Valve timing chain (Refer to 

P.11A-69

)

<<

B

>>

>>

E

<<

18. Front camshaft bearing cap 

assembly

>>

C

<<

19. Camshaft bearing

<<

C

>>

>>

D

<<

20. Oil feeding camshaft bearing cap

<<

C

>>

>>

D

<<

21. Camshaft bearing cap

<<

C

>>

>>

D

<<

22. Camshaft bearing cap

<<

C

>>

>>

D

<<

23. Thrust camshaft bearing cap

>>

C

<<

24. Camshaft and camshaft sprocket 

assembly

>>

C

<<

25. Camshaft bearing

<<

D

>>

>>

B

<<

26. Cylinder head bolt

<<

D

>>

>>

B

<<

27. Cylinder head bolt washer

<<

D

>>

>>

B

<<

28. Cylinder head bolt and washer 

assembly

>>

A

<<

29. Cylinder head assembly

>>

A

<<

30. Cylinder head gasket

Removal steps (Continued)

CYLINDER HEAD GASKET

TSB Revision

ENGINE MECHANICAL

11A-60

Required Special Tools:

• MB991454: Engine Hanger Balancer

• MB991895: Engine Hanger

• MB991928: Engine Hanger

REMOVAL SERVICE POINTS

.

<<A>> FUEL HIGH-PRESSURE HOSE DISCON-
NECTION

1. Follow the steps below to unlock the fuel high-pressure hose 

connector.

(1) Insert a flat-tipped screwdriver [6 mm (0.24 inch) wide 

and 1 mm (0.04inch) thick] into the retainer of the fuel 
high-pressure hose connector.

CAUTION

When pushing up the retainer of the fuel high-pressure 
hose connector, pay attention to avoid damage to the 
retainer. 

(2) Turn the flat-tipped screwdriver inserted into the retainer 

by 90 degrees to push up the retainer and unlock the fuel 
high-pressure hose connector.

2. Remove the fuel high-pressure hose.

.

AC506790AB

Fuel high-pressure
hose

Retainer

Fuel rail

AC407430AC

Retainer

Fuel rail

Flat-tipped 
screwdriver

Fuel high-pressure
hose

AC407429AC

Retainer

Fuel rail

Fuel high-pressure
hose

Flat-tipped 
screwdriver

CYLINDER HEAD GASKET

TSB Revision

ENGINE MECHANICAL

11A-61

<<B>> FRONT CAMSHAFT BEARING CAP 
ASSEMBLY REMOVAL

CAUTION

Be careful not to drop the camshaft bearing.
Loosen the mounting bolts of front camshaft bearing cap in the 
order of number shown in the figure, and remove the front cam-
shaft bearing cap assembly.

.

<<C>> OIL FEEDING CAMSHAFT BEARING 
CAP/CAMSHAFT BEARING CAP/THRUST 
CAMSHAFT BEARING CAP REMOVAL

CAUTION

When the camshaft bearing cap mounting bolts are loos-
ened at once, the mounting bolts jump out by the spring 
force and the threads are damaged. Always loosen the 
mounting bolts in four or five steps.
Loosen the mounting bolts of the camshaft bearing caps in the 
order of number shown in the figure in four or five steps, and 
remove the camshaft bearing caps.

.

AC506745

AD

1

2

3

4

Engine front

Front camshaft
bearing cap
assembly

AC506746

AC

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

Engine front

Camshaft bearing cap

Camshaft bearing cap

CYLINDER HEAD GASKET

TSB Revision

ENGINE MECHANICAL

11A-62

<<D>> CYLINDER HEAD BOLT/CYLINDER HEAD 
BOLT WASHER/CYLINDER HEAD BOLT AND 
WASHER ASSEMBLY REMOVAL

1. Temporarily install the engine oil pan which was removed at 

the valve timing chain removal (Refer to 

P.11A-51

).

2. Place a garage jack against the engine oil pan with a piece 

of wood in between to support the engine and transaxle 
assembly.

3. Remove special tool MB991928 or MB991895 which was 

installed for supporting the engine and transaxle assembly 
when the valve timing chain was removed.

4. Loosen and remove the bolts in two or three steps in the 

order of number shown in the figure. 

AC705461

MB991454

AC

MB991928

AC705462

MB991454

AC

MB991895

AC506767AD

1

2

3

4

5

6

7

8

9

10

Engine front