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Mitsubishi L200. Manual - part 42

ROCKER ARMS AND CAMSHAFT

ENGINE OVERHAUL

11B-42

INSTALLATION SERVICE POINTS

>>A<< STEM END CAP INSTALLATION

AK500648AB

Stem end cap

Valve

Install the stem end cap securely to attach the stem
end surfaces of the intake and exhaust valves.

>>B<< ROCKER ARM ASSEMBLY INSTALLATION

AK500649AB

Protrusion

Rocker arm

Nut

Adjusting screw

Temporarily install the adjusting screw to the rocker
arm with screw nut.

Protrusion: 5.5

− 6.5 mm

>>C<< SNAP RING / WAVE WASHER / SUB GEAR
/ C SPRING INSTALLATION

AK500650

1. Fix the camshaft using the hexagonal area of the

inlet camshaft.

AK500651

Sub gear

Camshaft

2.3 – 2.8 mm

Dowel pin

2. Press and fit a dowel pin into the inlet camshaft

and sub gear to be the dimension shown in the
illustration.

AK500652AB

C-spring

Dowel pin

Camshaft

3. Place the c-spring adjoining the dowel pin which

is pressed and fit into the inlet camshaft.

AK500652AC

C-spring

Dowel pin

Camshaft

4. Within the area "A" between the c-spring and inlet

camshaft, place the dowel pin which is pressed
and fitted into the sub gear.

5. Install the wave washer and snap ring.

AK500655AB

Thread hole of
camshaft (M6)

Hole of sub gear (Ø8)

Driver

Flange bolt (M6 × 20)

ROCKER ARMS AND CAMSHAFT

ENGINE OVERHAUL

11B-43

6. Set two flange bolts (M6

× 20) to two places on

the sub gear. As shown in the illustration, turn the
sub gear in a clockwise direction so that the sub
gear hole (

φ8) can align with the inlet camshaft

thread hole (M6).

CAUTION

• Do not turn the sub gear excessively.
• Do not press the snap ring strongly with a

driver.

7. Screw the bolts to attach the bolt heads to the sub

gear. Temporarily fix the sub gear.

8. After the temporary installation of the sub gear,

remove two flange bolts (M6

× 20) described in

No. 6.

>>D<< INLET CAMSHAFT ASSEMBLY/ EXHAUST
CAMSHAFT INSTALLATION

AK500656 AB

Timing mark

1. Install the camshaft so that each timing mark can

be in position as shown in the illustration.
NOTE: Carefully install the camshaft because a
rocker arm assembly is easily dropped at the
camshaft installation.

2. Confirm all the stem end caps are installed.
3. Confirm the rocker arm assembly is straightly

mounted on the pivot bolts and stem end caps.

>>E<< OIL PIPE / O-RING / CAMSHAFT BEARING
CAP FRONT LEFT / CAMSHAFT BEARING CAP
INSTALLATION

AK500658AB

1. Apply specified sealant to portions indicated in

illustration.

Specified sealant:
Three bond 1212D or equivalent

2. Installation the bearing cap.

AK404134AB

Symbol identifying
intake or exhaust

Cap No.

Front mark

NOTE: Install the camshaft bearing cap in numeri-
cal order in accordance with "cap No." stamped
on the upper surface of the bearing cap.

3. Installation the O-ring and oil pipe.

AK501386AB

4. In accordance with the tightening order shown in

the illustration, tighten the bearing cap bolt to the
specified torque.

>>F<< CAMSHAFT OIL SEAL INSTALLATION

AK500659AB

MD998713

1. Apply oil to the oil seal lips.
2. Using the special tool Camshaft oil seal installer

(MD998713), press-fit a new camshaft oil seal into
the front left bearing cap.

ROCKER ARMS AND CAMSHAFT

ENGINE OVERHAUL

11B-44

INSPECTION

M1113005501660

CAMSHAFT

AK500660

Measure the cam height.

Standard value:

Intake:

35.47 mm <Except Euro5>
35.42 mm <Euro5>

exhaust: 35.41 mm

Limit:

Intake:

34.97 mm <Except Euro5>
34.92 mm <Euro5>

exhaust: 34.91 mm

VALVE CLEARANCE ADJUSTMENT

Turn the crankshaft clockwise to bring No. 1 cylinder

to the top dead centre position.

AK500661AB

No. 1

No. 4

No. 3

No. 2

1. Measure the valve clearance.

If the valve clearance is not as specified, loosen
the rocker arm lock nut and adjust the clearance
using a thickness gauge between the cam shaft
and the roller while turning the adjusting screw.

Standard value (cold engine):

Intake valve: 0.09 mm
Exhaust valve: 0.14 mm

AK500662AB

Nut

Adjusting
screw

screwdriver

Thickness gauge

MB992046

2. While holding the adjusting screw with a

screwdriver to prevent it from turning, tighten the
lock nut to the specified torque using a special
tool Valve adjusting socket (MB992046).

Tightening torque: 15

± 3 N⋅m

3. Turn the crankshaft 360

° clockwise to bring No. 4

cylinder to the top dead centre position.

AK500661AC

No. 1

No. 4

No. 3

No. 2

4. Adjust the valve clearance at points shown in the

illustration.

5. Repeat steps 3 to 5 to adjust the valve clearance

of remaining valves.

CYLINDER HEAD AND VALVES

ENGINE OVERHAUL

11B-45

CYLINDER HEAD AND VALVES

REMOVAL AND INSTALLATION

M1113006903407

AK600424AB

78 ± 2 N·m 0 N·m

29 ± 2 N·m +90˚ +90˚

Apply engine oil to
all moving parts
before installation.

13
14

15
16

Removal steps

<<A>>

<< 1.

Cylinder head bolt

Cylinder head bolt washer

Cylinder head assembly

<< 4.

Cylinder head gasket

>> >>

<< 5.

Valve spring retainer lock

Valve spring retainer

Valve spring

Intake valve

<< 9.

Valve spring retainer lock

10. Valve spring retainer
11. Valve spring

12. Exhaust valve

<< 13. Valve stem seal

14. Spring seat

<< 15. Valve stem seal

16. Spring seat
17. Intake valve guide
18. Exhaust valve guide
19. Exhaust valve seat
20. Intake valve seat
21. Cylinder head

Removal steps (Continued)

Content .. 40 41 42 43 ..