Mitsubishi L200. Manual — part 47
CRANKSHAFT AND CYLINDER BLOCK
ENGINE OVERHAUL
11B-62
CRANKSHAFT AND CYLINDER BLOCK
REMOVAL AND INSTALLATION
M1113008704208
CAUTION
On the flexible flywheel equipped engines, do not remove any of the bolts "A" of the flywheel shown
in the illustration. The balance of the flexible flywheel is adjusted in an assembled condition. Remov-
ing the bolt, therefore, can cause the flexible flywheel to be out of balance giving and resulting in
damage.
AKB00336AB
Apply engine oil to
all moving parts
before installation.
1
3
2
4
7
8
13
14
16
28
27
133 ± 4 N·m
11 ± 1 N·m
9.0 ± 1.0 N·m
133 ± 4 N·m
9.0 ± 1.0 N·m
54 ± 5 N·m
54 ± 5 N·m
40 ± 2 N·m +35˚ to 39˚
32 ± 2 N·m
6
15
29
18
19
20
21
22
23
24
25
26
18
9
135 ± 5 N·m
12
10
A
11
5
17
Removal steps
1.
Flywheel bolt (M/T
−2WD)
2.
Ball bearing (M/T
−2WD)
3.
Flywheel (M/T
−2WD)
4.
Flywheel bolt (M/T
−4WD)
5.
Ball bearing (M/T
−4WD)
6.
Adapter (M/T
−4WD)
7.
Flexible flywheel (M/T
−4WD)
8.
Crankshaft adapter (M/T
−4WD)
9.
Drive plate bolt (A/T)
10. Adapter plate (A/T)
11. Drive plate (A/T)
12. Inertiar ring(A/T)
13. Rear plate
14. Bell housing cover
>>
E
<< 15. Oil seal case
>>
D
<< 16. Oil seal
>>
C
<< 17. Bearing cap bolt
>>
C
<< 18. Bearing cap
Removal steps (Continued)
CRANKSHAFT AND CYLINDER BLOCK
ENGINE OVERHAUL
11B-63
INSTALLATION SERVICE POINTS
>>A<< OIL JET INSTALLATION
AK402957
AB
Oil jet
(for No.1, 3)
Oil jet
(for No.2, 4)
No.2, 4
Cylinder
No.1, 3
Cylinder
Cylinder block
Oil jet
Knock pin
Check valve
There are two types of oil jets installed.
one for No.1 and 3 and the other for N0.2 and 4.
Make sure that the correct one is installed with cor-
rect direction as shown.
>>B<< CRANKSHAFT BEARING INSTALLATION
1. When the bearing needs replacing, select a
proper bearing by the following procedure.
NOTE: If the crankshaft is machined to an under-
sized, bearings for undersized crankshaft should
be used and therefore the following selection pro-
cedure is unnecessary.
AK503244
No.5
No.4
No.3
No.2
No.1
Place of journal diameter class
AB
No.5
No.4
No.3
No.2
No.1
Ident mark and color location
( Using both ID mark and color or either one )
(1) Measure the crankshaft journal diameter and
confirm its classification from the following
table. In the case of a crankshaft supplied as a
service part, identification colors and marks of
its journals and painted at the positions shown
in the illustration.
AK402986AB
Timing belt side
No.1
No.2
No.3
No.4
No.5
(2) The cylinder block bore diameter identification
marks are stamped at the position shown in
the illustration from front to rear beginning at
No.1.
AK503245AB
For upper
For lower
Identification
color
Identification mark
Identification
color
Identification mark
>>
C
<< 19. Bearing cap No.3
>>
C
<< 20. Bearing cap No.4
>>
B
<< 21. Crankshaft bearing, lower
22. Crankshaft
>>
B
<< 23. Crankshaft bearing, upper
>>
B
<< 24. Crankshaft thrust bearing
>>
A
<< 25. Check valve
>>
A
<< 26. Oil jet
27. Engine support bracket, right
28. Engine support bracket, left
29. Cylinder block
Removal steps (Continued)
CRANKSHAFT AND CYLINDER BLOCK
ENGINE OVERHAUL
11B-64
(3) Select proper bearings from the below table
on the basis of the identification data
confirmed under Items (1) and (2).
Example
a. If the measured value of a crankshaft journal
outer diameter is 65.997 mm, the journal is clas-
sified as "1" or "Yellow" in the table. In case the
crankshaft is also replaced by a spare part, check
the identification colors of the journals painted on
the new crankshaft.
b. Next, check the cylinder block bearing bore iden-
tification mark stamped on the cylinder block. If it
is "A" read the "Bearing identification mark" col-
umn to find the identification mark of the bearing
to be used. In this case, it is "1" or "Green"
Combination of crankshaft journal diameter and cylinder block bearing bore
diameter
Bearing
identification mark
Crankshaft journal Classification
Cylinder block bearing
bore diameter
identification mark
Identification color or mark
Using both ID (mark and color) or
either one
O.D. mm
1
Yellow
65.994
− 66.000
A
1 or Green
B
2 or Yellow
C
3 or None
2
None
65.988
− 65.994
A
2 or Yellow
B
3 or None
C
4 or Blue
3
White
65.982
− 65.988
A
3 or None
B
4 or Blue
C
5 or Red
AK503246AB
For upper
For lower
Groove
2. Crankshaft bearing
(1) Install the bearings having an oil groove to the
cylinder block.
NOTE: The No. 3 bearing integrated with thrust
bearing has no oil groove.
(2) Install the bearings having no oil groove to the
bearing cap.
AK301467
Groove
AD
3. Crankshaft thrust bearing installation
(1) Install the two thrust bearing in the number 3
bearing bore in the cylinder block. For easier
installation, apply engine oil to the bearings;
this will help hold them in position.
(2) The thrust bearings must be installed with their
groove side toward the crankshaft web.
>>C<< BEARING CAP / BEARING CAP BOLT
INSTALLATION
AK404143 AB
Cap No.
Front mark
CRANKSHAFT AND CYLINDER BLOCK
ENGINE OVERHAUL
11B-65
1. Install according to the front mark and cap No.
2. Apply engine oil to the threaded portion and
seating face of the bolt.
3. Tighten the bearing cap bolts in the illustrated
sequence to 40
± 2 N⋅m.
AK500598AB
MB991614
CAUTION
• When the tightening angle is smaller than the
specified tightening angle, the appropriate
tightening capacity cannot be secured.
• When the tightening angle is larger than the
specified tightening angle, remove the bolt to
start from the beginning again according to
the procedure.
4. Using the special tool Angle gauge (MB991614),
tighten the bearing cap bolts in the illustrated
sequence by a further 35
° to 39°.
AK404157
5. After installing the bearing caps, make sure that
the crankshaft turns smoothly and the end play is
correct. If the end play exceeds the limit, replace
crankshaft bearings.
Standard value: 0.05
− 0.25 mm
Limit: 0.45 mm
>>D<< OIL SEAL INSTALLATION
AK600423 AB
Oil seal
Oil seal case
MB992147
Press
1. Apply oil to oil seal lips.
2. Using the special tool Oil seal installer
(MD992147), Press and fit the oil seal into the oil
seal case to have the dimension shown in the
illustration.
>>E<< OIL SEAL CASE INSTALLATION
1. Remove completely old FIPG remaining on the
rear oil seal case and cylinder block.
AK500580AB
2. Apply a bead of FIPG to the surface of the rear oil
seal case as shown in the drawing.
Specified sealant:
Three bond 1217G or equivalent
NOTE: Be sure to install the case quickly while
the sealant is wet (within 15 minutes).
3. Install the oil seal into the cylinder block after
applying an appropriate amount of engine oil to
the entire circumference of its lip portion.
4. Install the rear oil seal case by tightening its bolts
to 11
± 1 N⋅m.
NOTE: After installation, keep the sealed area away
from the oil for approximately one hour.
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