Mitsubishi 4G1 Series General Information Manual page 143

11A-12-6
4G1 ENGINE (E-W) – Crankshaft and Cylinder Block
Crankshaft journal
Range Color code
1 Yellow
2 None
3 White
Timing belt side
Cylinder block journal bore
diameter
Grooveless
Upper bearing (Nos.
Lower bearing (Nos. 1,
1, 2, 4, and 5)
Grooveless
2, 4, and 5)
Upper and lower
bearings (center) (No.3)
4
Identification mark
1
2
3
(2) Identification marks showing the cylinder block bearing bore
diameter are stamped in the position shown, with No. 1 at the
front of the engine. Bearings must be selected and installed in
accordance with these identification marks.
(3) Based on the identification markings verified in steps (1) and
(2), select bearings from table above. See the following
example:
1. If the measured crankshaft journal diameter 48.000 mm,
this corresponds to classification 1 in the above table.
1EN0505
2. If the identification mark on the cylinder block bearing hole
is "1", select a bearing with an identification mark of "2".
<Correct>
<Incorrect>
1EN0402
(4) Except for the center bearing, all the upper bearings are
Grooved
grooved. The center bearings are grooveless and have flanges.
The center bearings are the same at the top and bottom.
(5) The lower bearings are all grooveless.
1EN0317
Journal diameter mm
47.995 – 48.000
47.985 – 49.995
47.980 – 48.985
Identification mark
Cylinder block Bearing
bearing diameter
Identification Identification
mark mark or color
0 1
1 2
2 3
0 2
1 3
2 4
0 3
1 4
2 5
<Added>
Identification color
1EN0920
or Brown
or None
or Blue
or None
or Blue
or Yellow
or Blue
or Yellow
or Green