Specifications

4M41 ENGINE -
Crank Shaft and Crank Case
11B-25-3
INSTALLATION SERVICE POINTS
"
A
A
MAIN BEARING INSTALLATION
The main bearings
16
and
25
must have a proper plate
thickness that matches the difference between the bearing
mounting hole I.D. of the crankcase assembly
17, 29
and
the journal O.D. of the crankshaft
22
.
(1) Measure the bearing mounting hole I.D. of the crankcase
assembly
17, 29
and the journal O.D. of the crankshaft
22
.
A
: Measuring point (One point in vertical direction for
crankcase)
Caution
Tighten the main bearing cap bolts 14 by specified
procedure before measuring the bearing mounting
hole I.D. of the crankcase assembly 17, 29.
NOTE
(1) The bearing mounting hole I.D. of the crankcase
17
,
19
can be known by th e identification mark
B
on
the right side of the crankcase rear end.
C
: No. 1 journal,
D
: No. 2 journal
E
: No. 3 journal,
F
: No. 4 journal
G
: No. 5 journal
(2) The journal O.D. of the crankshaft
22
can be identified
by the identification color on the crankshaft.
H
: Identification color position
(2) Select appropriate thickness main bearings
16, 25
from
the following table.
J
: Identification color position
K
: Lug
L
: Oil hole
Caution
The main bearing shells 16 and 25 must be installed
in the specified direction. The main bearing shells
for No. 3 journal are different in thickness from the
others. The upper main bearing shell for No. 3 journal
is different also in shape from the others.
Unit: mm
Crankshaft
Crankcase Main bearing
Identifi-
cation
color
Journal
O.D.
Size
mark
Bearing
mounting
hole I.D.
Identifica-
tion color
(L/U)
Journal No. Plate
Thickness
Oil Clearance
None 67.970 - A 72.010 - Black/Black No.1, 2, 4, 5 1.992 - 1.996 0.040 - 0.065
67.798 72.019
No.3 1.982 - 1.986 0.060 - 0.085
B 72.000 - Blue/Blue No.1, 2, 4, 5 1.988 - 1.992 0.038 - 0.064
72.010
No.3 1.978 - 1.982 0.058 - 0.084
Blue 67.961 - A 72.010 - Yellow/Yel- No.1, 2, 4, 5 1.996 - 2.000 0.040 - 0.066
67.970 72.019 low
No. 3 1.986 - 1.990 0.060 - 0.086
B 72.010 - Black/Black No.1, 2, 4, 5 1.992 - 1.996 0.038 - 0.065
72.019
No.3 1.982 - 1.986 0.058 - 0.085
L: Lower main bearing shell U: Upper main bearing shell
PWEE9409-D
E
Feb. 2000Mitsubishi Motors Corporation Added
22
17
A
H
H
L
K
25
14
B
K
16
<No.1, 2, 4, 5>
<No.3 >
<No.1, 2, 4, 5>
<No.3 >
J
29
CE
D
G
F
J
J
J