Mitsubishi Galant 9G. Manual — part 590

ROCKER ARMS AND CAMSHAFT

TSB Revision

ENGINE OVERHAUL <2.4L ENGINE>

11B-32

>>B<< ADJUSTING SCREW INSTALLATION

When installing provisionally the screw to rocker arm, project it
slightly 3mm (0.12 in) from the same face level of the rocker
arm end.

.

>>C<< ROCKER SHAFT SPRING/ROCKER ARMS
AND ROCKER ARM SHAFT INSTALLATION

1. In accordance with the tags made during removal, install the

rocker arm, and other parts to the rocker arm shaft.

2. Install the rocker arm shaft with oil hole to the lower (cylinder

head) side.

3. Temporarily install the rocker arm, rocker arm shaft

assembly and intake.

4. Temporarily install the rocker arm, rocker arm shaft

assembly and exhaust.

5. Confirm the each rocker arm and rocker arm shaft assembly

are in position and then tighten to the specified torque.

Tightening torque:

M6: 13

± 1 N⋅m (115 ± 8 in-lb)

M8: 31

± 3 N⋅m (23 ± 3 ft-lb)

.

>>D<< CAMSHAFT OIL SEAL INSTALLATION

1. Apply engine oil to the lip area of the oil seal and the front

end outside diameter of camshaft.

2. Using special tool MD998713, install the camshaft oil seal.

AK301421

3 mm
(0.12 in)

AC

AK301422

TIMING BELT SIDE

AC

AK300160

MD998713

AC

ROCKER ARMS AND CAMSHAFT

TSB Revision

ENGINE OVERHAUL <2.4L ENGINE>

11B-33

INSPECTION

M1113005500441

.

CAMSHAFT

Measure the cam height. If it is below the limit, replace the
camshaft.

STANDARD
VALUE

MINIMUM
LIMIT

A: Intake low speed
cam A

33.84 mm
(1.332 in)

33.34 mm
(1.313 in)

B: Intake low speed
cam B

37.35 mm
(1.471 in)

36.85 mm
(1.451 in)

C: Intake high speed
cam

37.21 mm
(1.465 in)

36.71 mm
(1.445 in)

D: Exhaust cam

37.86 mm
(1.491 in)

37.36 mm
(1.471 in)

AK300161

AK301488AC

A

B

C

D D

A

B

C

D D

A

B

C

D D

A

B

C

D D

CYLINDER HEAD AND VALVES

TSB Revision

ENGINE OVERHAUL <2.4L ENGINE>

11B-34

CYLINDER HEAD AND VALVES

REMOVAL AND INSTALLATION

M1113006900594

Required Special Tools:

• MB991654: Cylinder Head Bolt Wrench (12)

• MB991999: Valve Stem Seal Installer

• MD998735: Valve Spring Compressor

AK301262 AC

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

APPLY ENGINE OIL
TO ALL MOVING
PARTS BEFORE
INSTALLATION.

78 ± 2 N·m

0 N·m 20 ± 2 N·m

58 ± 1 ft-lb 0 in-lb 15 ± 1 ft-lb

→ → → + 90˚ → + 90˚

REMOVAL STEPS

<<A>> >>D<<

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

<<B>> >>C<<

4. RETAINER LOCK
5. VALVE SPRING RETAINER

>>B<<

6. VALVE SPRING
7. INTAKE VALVE

<<B>> >>C<<

8. RETAINER LOCK
9. VALVE SPRING RETAINER

>>B<<

10.VALVE SPRING

11. EXHAUST VALVE

>>A<<

12. VALVE STEM SEAL
13. VALVE SPRING SEAT

>>A<<

14. VALVE STEM SEAL
15. VALVE SPRING SEAT
16. INTAKE VALVE GUIDE
17. EXHAUST VALVE GUIDE
18. INTAKE VALVE SEAT
19. EXHAUST VALVE SEAT
20. CYLINDER HEAD

REMOVAL STEPS (Continued)

CYLINDER HEAD AND VALVES

TSB Revision

ENGINE OVERHAUL <2.4L ENGINE>

11B-35

REMOVAL SERVICE POINTS

.

<<A>> CYLINDER HEAD BOLTS REMOVAL

Using special tool MB991654, loosen the cylinder head bolts.
Loosen each bolt evenly, little by little, in two or three steps.

.

<<B>> RETAINER LOCK REMOVAL

1. Set special tool MD998735 as illustrated to compress the

valve spring. Remove the retainer lock.

2. Relieve the spring tension and remove the valve, retainer,

spring, etc. Tag the removed valves, springs, and other
parts, to indicate their cylinder number and location for
reassembly.

INSTALLATION SERVICE POINTS

.

>>A<< VALVE STEM SEAL INSTALLATION

CAUTION

The special tool must be used to install the valve stem
seal. Improper installation could result in oil leaking past
the valve guide.
1. Install the valve spring seat.
2. Using special tool MB991999, install a new valve stem seal.

.

AK300162

MB991654

AC

AK300163

MD998735

AC

AK300164

MB991999

AE