Mitsubishi L200. Manual — part 44
CYLINDER HEAD AND VALVES
ENGINE OVERHAUL
11B-50
1. Before correcting the valve seat, check for
clearance between the valve guide and valve and,
if necessary, replace the valve guide.
2. Using the seat grinder, correct to obtain the
specified seat width and angle.
3. After correction, valve and valve seat should be
lapped with a lapping compound.
VALVE SEAT REPLACEMENT PROCEDURE
AK400379 AC
0.5 - 1 mm
Cut away
0.5 - 1 mm
1. Cut the valve seat to be replaced from the inside
to thin the wall thickness. Then, remove the valve
seat.
AK400380AD
Valve seat
height
Oversize hole diameter
2. Rebore the valve seat hole in cylinder head to the
oversize valve seat diameter.
Intake valve seat hole diameter:
0.30 O.S.: 33.300
− 33.325 mm
Exhaust valve seat hole diameter:
0.30 O.S.: 29.300
− 29.321 mm
3. When the valve sheet is a press fit, engine oil is
applied to the valve sheet or the cylinder head not
to damage the inside diameter of the cylinder
head.
4. Using valve seat cutter, correct the valve seat to
the specified width and angle.
See "VALVE SEAT RECONDITIONING
PROCEDURE."
VALVE GUIDE REPLACEMENT PROCEDURE
1. Force out the valve guide toward the cylinder
block using a press.
CAUTION
Do not use a replacement valve guide of the
same size as the removed one.
2. Machine the valve guide hole in the cylinder head
to the size matched to the selected oversize valve
guide.
Valve guide hole diameter:
0.05 O.S.: 11.050
− 11.068 mm
NOTE: Do not install a valve guide of the same
size again.
AK500586AB
Protrusion
Protrusion
3. Press-fit the valve guide until it remains protruded
above the cylinder head by the amount indicated
in the illustration.
Protrusion: 18.3
− 18.9 mm
NOTE: Press the valve guide from above the cyl-
inder head.
NOTE: The valve guides for the intake valves are
different in length from those for the exhaust
valves (45.2 mm for intake valves; 48.2 mm for
exhaust valves)
4. After installing the valve guide, insert a new valve
in it to check for smooth movement.
OIL PAN AND OIL PUMP
ENGINE OVERHAUL
11B-51
OIL PAN AND OIL PUMP
REMOVAL AND INSTALLATION
M1113008102244
AK801110AB
Apply engine oil to
all moving parts
before installation.
1
2
5
7
8
10
11
12
14
16
17
18
19
27
30
31
32
33
35
34
24
9.5 ± 2.5 N·m
37
36
38
9.5 ± 2.5 N·m
10 ± 2 N·m
10 ± 2 N·m
24 ± 4 N·m
39 ± 5 N·m
23 ± 4 N·m
12 ± 2 N·m
24 ± 4 N·m
19 ± 3 N·m
19 ± 3 N·m
39 ± 5 N·m
9.0 ± 3.0 N·m
24 ± 4 N·m
37 ± 3 N·m
37 ± 7 N·m
28
29
26
25
21
23
20
23 ± 3 N·m
22
9
15
6
4
13
22 ± 2 N·m
3
10 ± 2 N·m
Removal steps
>>
M
<< 1.
Oil filter
<<
A
>> >>
L
<< 2.
Oil pressure switch <Except Euro5>
>>
K
<< 3.
Oil pressure switch <Euro5>
4.
O-ring
>>
J
<< 5.
Oil cooler
6.
O-ring
7.
Heat protector <Except Euro5>
8.
Oil filter bracket
9.
Oil filter bracket gasket
10. Oil drain plug
>>
I
11. Oil drain plug gasket
<<
B
>> >>
H
<< 12. Oil pan
>>
H
<< 13. Oil pan gasket
*
14. Oil screen
15. Oil screen gasket
16. Stiffener
17. Front upper case
18. Front upper case gasket
>>
G
<< 19. Front upper case oil seal
20. Plug cap
21. O-ring
<<
C
>> >>
F
<< 22. Flange bolt
23. Front lower case
24. Front lower case gasket
>>
E
<< 25. Crankshaft front oil seal
>>
D
<< 26. Balancer shaft oil seal
27. Plug
Removal steps (Continued)
OIL PAN AND OIL PUMP
ENGINE OVERHAUL
11B-52
NOTE: *:Use either an oil pan gasket or a sealant for
installing the oil pan.
REMOVAL SERVICE POINTS
<<A>> OIL PRESSURE SWITCH REMOVAL
AK404158
AB
MD998012
Using special tool Oil pressure switch socket wrench
(MD998012), removal the oil pressure switch.
<<B>> OIL PAN REMOVAL
AK404130AB
MD998727
1. Knock the special tool Oil pan sealer cutter
(MD998727) deeply between the oil pan and the
cylinder block.
2. Hitting the side of the special tool Oil pan sealer
cutter (MD998727), slide the special tool along
the oil pan to remove it.
<<C>> FLANGE BOLT REMOVAL
AK404131
1. Remove the plug on the right side of cylinder
block.
2. Insert a Phillips screwdriver into the plug hole to
lock the silent shaft in position.
3. Remove the flange bolt.
<<D>> OUTER ROTOR / INNER ROTOR
REMOVAL
AK404136
AB
Alignment mark
Put alignment marks on the outer and inner rotors for
reference in reassembly.
<<E>> BALANCER SHAFT BEARING REMOVAL
AK500587
MD998380
AB
1. Install the special tool Bearing installer stopper
(MD998380) to the cylinder block. This is used to
hold the special tool.
28. Relief spring
29. Relief plunger
30. Oil pump cover
<<
D
>> >>
C
<< 31. Inner rotor
<<
D
>> >>
C
<< 32. Outer rotor
33. Balancer shaft gear cover
>>
B
<< 34. Balancer shaft driven gear
>>
B
<< 35. Balancer shaft drive gear
36. Balancer shaft, left
37. Balancer shaft, right
<<
E
>> >>
A
<< 38. Balancer shaft bearing
Removal steps (Continued)
AK402949AB
MD998251
Bearing
MD998380
(Right side only)
OIL PAN AND OIL PUMP
ENGINE OVERHAUL
11B-53
2. Pull out the rear bearing from the cylinder block
using the special tool Balancer shaft bearing
puller (MD998251).
INSTALLATION SERVICE POINTS
>>A<< BALANCER SHAFT BEARING INSTALLA-
TION
AK402958AB
MD998250
Apply
engine
oil
Bearing
MD998380
(Right side only)
Using the special tools, press-fit the bearing into the
cylinder block.
Before press-fitting the bearing, apply an ample
amount of engine oil to the bearing surfaces as well
as bearing hole in the cylinder block.
• Balance shaft bearing installer (MD998250)
• Bearing installer stopper (MD998380)
>>B<< BALANCER SHAFT DRIVE GEAR /
BALANCER SHAFT DRIVEN GEAR
INSTALLATION
1. Apply engine oil to the balancer shaft drive and
driven gears.
AK404137AB
Alignment
mark
2. Install the balancer shaft drive and driven gears to
the front lower case. Make sure that the alignment
marks are in line.
>>C<< INNER ROTOR / OUTER ROTOR
INSTALLATION
AK404136
AB
Alignment mark
Install the outer rotor in the same direction as before
noting the mark put at the time of removal. Apply
engine oil to the entire rotor surface.
>>D<< OIL SEAL INSTALLATION
1. Apply engine oil to the oil seal outer surface.
AK500588
Oil seal
Balancer shaft
drive gear
Front lower case
MD998385
AB
2. Using the special tool Balancer shaft drive gear oil
seal guide (MD998385), drive in with a socket
wrench.
>>E<< CRANKSHAFT FRONT OIL SEAL
INSTALLATION
AK500589AB
Oil seal
Crankshaft
Front
lower
case
MD998382
(Apply oil to outer surface)
MD998383
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст