Mitsubishi Grandis. Manual — part 660

ROCKER ARMS AND CAMSHAFT

ENGINE OVERHAUL

11B-35

ROCKER ARMS AND CAMSHAFT

REMOVAL AND INSTALLATION

M1113005400693

AK305650

1

2

3

4

5

6

7

3.5 ± 0.5 N·m

Apply engine oil to
all moving parts
before installation.

AB

8

11

15

16 17

18

19

21

22
23

24

25

26

27

9

28

12

13

12

13

11 ± 1 N·m

44 ± 5 N·m

47 ± 7 N·m

13 ± 1 N·m

15

16 17

12

13

12

13

15

16 17

12

13

12

13

15

16 17

12

13

12

13

20

13 ± 1 N·m

10

12

12

12

12

12

12

12

12

13

13

13

13

13

13

13

13

14

9.0 ± 1.0 N·m

Removal steps

1. Breather hose
2. PCV hose
3. PCV valve
4. PCV valve gasket
5. Oil filler cap
6. Rocker cover
7. Rocker cover gasket
8. Oil seal

>>D<<

9. Oil seal

<<A>> >>C<<

10.Rocker arms and rocker arm shaft

(Intake side)

<<A>> >>C<<

11.Rocker arms and rocker arm shaft

(Exhaust side)

12.Nut

>>B<<

13.Adjusting screw
14.Rocker arm shaft assembly (Intake

side)

15.Rocker arm "C"
16.Piston arm assembly
17.Rocker arm "D"
18.Rocker arm shaft (Exhaust side)

>>A<<

19.Oil control valve

Removal steps (Continued)

ROCKER ARMS AND CAMSHAFT

ENGINE OVERHAUL

11B-36

REMOVAL SERVICE POINT
<<A>> ROCKER ARMS AND ROCKER
ARM SHAFT REMOVAL

When the rocker arm is removed from the rocker
shaft, keep them with the tags that show the
installation location for the reinstallation of the rocker
arm, the T-lever, the piston arm assembly and so on.

INSTALLATION SERVICE POINTS
>>A<< OIL CONTROL VALVE
INSTALLATION

CAUTION

Do not reuse the O-ring. Install the O-ring after
wrap a tape not having adhesion (such as a seal
tape) round the notch on the oil passage of oil
control valve to prevent it from damage. The
damaged O-ring may cause oil leakage.

1. Apply a little amount of engine oil to the O-ring of

oil control valve.

2. Install the oil control valve to the cylinder head.
3. Tighten the oil control valve to the specified torque

of 11

± 1 N⋅m.

>>B<< ADJUSTING SCREW
INSTALLATION

Install provisionally the screw to rocker arm, insert it
so that end of the screw is flush with the edge of the
rocker arm or projects slightly 3 mm.

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

1. In accordance with the tags for the reinstallation,

install the rocker arm and so on to the rocker arm
shaft.

2. Install the rocker arm shaft with oil hole to the

lower (cylinder head) side.

3. Install the rocker arm, rocker arm shaft assembly

and intake temporarily.

4. Install the rocker arm, rocker arm shaft assembly

and exhaust temporarily.

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

M8: 31

± 3 N⋅m

20.O-ring
21.Snap ring
22.Accumulator spring seat
23.Plunger spring
24.Accumulator plunger
25.Accumulator body
26.Taper plug
27.Oil control valve filter
28.Camshaft

Removal steps (Continued)

AK303651AE

Tape

AK301421

3 mm

AD

AK301422

Timing belt side

AD

ROCKER ARMS AND CAMSHAFT

ENGINE OVERHAUL

11B-37

>>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 Camshaft oil seal installer

(MD998713), install the camshaft oil seal.

INSPECTION

M1113005500560

CAMSHAFT

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

AK300160

MD998713

AD

AK300161

Standard
value

Minimum
limit

A: Intake low speed
cam A

34.41 mm

33.91 mm

B: Intake low speed
cam B

37.47 mm

36.97 mm

C: Intake high speed
cam

37.21 mm

36.71 mm

D: Exhaust cam

37.86 mm

37.36 mm

AK301488AD

A

B

C

D D

A

B

C

D D

A

B

C

D D

A

B

C

D D

CYLINDER HEAD AND VALVES

ENGINE OVERHAUL

11B-38

CYLINDER HEAD AND VALVES

REMOVAL AND INSTALLATION

M1113006900635

AK301262AE

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

78 ± 2 N·m

0 N·m 20 ± 2 N·m

→ → → + 90˚ → + 90˚

Apply engine oil to
all moving parts
before installation.

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)