Mitsubishi Eclipse. Manual - part 110

CYLINDER HEAD GASKET

TSB Revision

ENGINE MECHANICAL <2.4L>

11A-35

Required Special Tool:

• MB991654: Cylinder Head Bolt Wrench (12)

REMOVAL SERVICE POINTS

.

<<A>> POWER STEERING OIL PUMP AND BRACKET 
ASSEMBLY REMOVAL
Remove the power steering oil pump and bracket assembly 
from the engine with the hose attached.
NOTE: Place the removed power steering oil pump in a place 
where it will not be a hindrance when removing and installing 
the cylinder head assembly, and secure it with a cord or wire.

.

<<B>> CYLINDER HEAD ASSEMBLY REMOVAL

CAUTION

Be careful not to damage or deform the plug guides when 
removing the cylinder head bolts. Plug guides cannot be 
replaced separately.
Using special tool MB991654, loosen the bolts in two or three 
steps in the order of the numbers shown in the illustration, then 
remove the cylinder head assembly.

INSTALLATION SERVICE POINTS

.

>>A<< CYLINDER HEAD GASKET INSTALLATION
1. Wipe off all oil and grease from the gasket mounting 

surface.

2. Match the shapes of the cylinder head holes with their 

respective cylinder head gasket holes.

.

AC000142

INTAKE SIDE

EXHAUST SIDE

FRONT OF
ENGINE

AB

MB991654

1

2

3

5

10

8

7

9

6

4

CYLINDER HEAD GASKET

TSB Revision

ENGINE MECHANICAL <2.4L>

11A-36

>>B<< CYLINDER HEAD ASSEMBLY INSTALLATION
1. When installing the cylinder head bolts, the length below the 

head of the bolts should be within the limit. If it is outside the 
limit, replace the bolts.

Limit (A): 99.4 mm (3.91 inches)

2. Apply a small amount of engine oil to the thread section and 

the washer of the cylinder head bolt.

CAUTION

• Always tighten cylinder head bolts at a 90 degree angle. 

If it is less than 90 degree angle, the bolt will loosen.

• If it is more than 90 degree angle, remove the head bolt 

and repeat the procedure from step 1.

3. Using special tool MB991654, tighten the bolts by the 

following procedure.

.

AC000143

(ENGINE OIL)

AB

A

STEP OPERATION

REMARKS

(1)

Tighten to 79 

± 4 

N

⋅m (58 ± 3 ft-lb)

Tighten in the order shown in 
the illustration.

(2)

Fully loosen.

Tighten in the reverse order of 
that shown in the illustration.

(3)

Tighten to 20 

± 2 

N

⋅m (15 ± 1 ft-lb)

Tighten in the order shown in 
the illustration.

(4)

Tighten 90

° of a 

turn.

Tighten in the order shown in 
the illustration. Mark the head 
of the cylinder head bolt and 
cylinder head with a paint mark.

(5)

Tighten 90

° of a 

turn.

Tighten in the order shown in 
the illustration. Check that the 
painted mark of the head bolt is 
aligned with that of the cylinder 
head.

AC000142

INTAKE SIDE

EXHAUST SIDE

FRONT OF
ENGINE

AC

MB991654

10

9

8

6

1

3

4

2

5

7

AC000144

STEP (4)

STEP (5)

90˚

90˚

PAINTED MARKS

PAINTED MARKS

AB

CYLINDER HEAD GASKET

TSB Revision

ENGINE MECHANICAL <2.4L>

11A-37

>>C<< FUEL HIGH-PRESSURE HOSE INSTALLATION

CAUTION

Do not allow engine oil to enter the fuel rail.
1. Apply a small amount of new engine oil to the O-ring.
2. While turning the fuel high-pressure hose to the right and 

left, install the fuel rail, while being careful not to damage the 
O-ring. After installing, check that the hose turns smoothly.

3. If the hose does not turn smoothly, the O-ring is probably 

being clamped. Disconnect the fuel high-pressure hose and 
check the O-ring for damage.

4. Re-insert the fuel rail and confirm the hose turns smoothly.

AC206397

FUEL HIGH-
PRESSURE
HOSE

O-RING

FUEL RAIL

AB

TIMING BELT

TSB Revision

ENGINE MECHANICAL <2.4L>

11A-38

TIMING BELT

REMOVAL AND INSTALLATION

M1112004300720

Required Special Tools:

• MD998738: Adjusting Screw
• MD998767: Tensioner Wrench

Pre-removal Operation
• Engine Mount Bracket Removal (Refer to GROUP 32, 

Engine Mounting 

P.32-4

.)

Post-installation Operation
• Engine Mount Bracket Installation (Refer to GROUP 32, 

Engine Mounting 

P.32-4

.)

• Drive Belt Tension Adjustment [Refer to GROUP 00, 

Maintenance Service 

− Drive Belts (Check Condition) 

P.00-46

.]

AC000145

23 ± 3 N·m
17 ± 3 ft-lb

48 ± 6 N·m
36 ± 4 ft-lb

25 ± 4 N·m
18 ± 4 ft-lb

11 ± 1 N·m
96 ± 8 in-lb

14 ± 1 N·m
117 ± 13 in-lb

8.8 ± 1.0 N·m
78 ± 9 in-lb

8.8 ± 1.0 N·m
78 ± 9 in-lb

11 ± 1 N·m
96 ± 8 in-lb

9

7

5

8

4

3

2

1

AB

6

REMOVAL STEPS

1.

DRIVE BELT (POWER 
STEERING OIL PUMP AND A/C 
COMPRESSOR)

2.

DRIVE BELT (GENERATOR)

3.

WATER PUMP PULLEY

4.

CRANKSHAFT PULLEY

5.

TIMING BELT UPPER COVER 
ASSEMBLY

6.

TIMING BELT LOWER COVER 
ASSEMBLY

>>C<<

•

TIMING BELT TENSION 
ADJUSTMENT

<<A>>

>>B<<

7.

TIMING BELT

8.

TENSIONER PULLEY

>>A<<

9.

AUTO-TENSIONER

REMOVAL STEPS (Continued)