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
2.3 – 2.8 mm
Dowel pin
Dowel pin
AB
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
A
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
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
1
5
7
3
2
6
8
4
9
10
1
5
7
3
2
6
8
4
9
10
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.
1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
2
Removal steps
<<A>>
>>
D
<< 1.
Cylinder head bolt
2.
Cylinder head bolt washer
3.
Cylinder head assembly
>>
C
<< 4.
Cylinder head gasket
<<
B
>> >>
B
<< 5.
Valve spring retainer lock
6.
Valve spring retainer
7.
Valve spring
8.
Intake valve
<<
B
>
>>
B
<< 9.
Valve spring retainer lock
10. Valve spring retainer
11. Valve spring
12. Exhaust valve
>>
A
<< 13. Valve stem seal
14. Spring seat
>>
A
<< 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)
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