Mitsubishi 4G1 series General Information

4
Crankshaft journal Cylinder block
bearing diameter
Bearing
Range Color code Identification mark Journal diameter mm Identification
mark
Identification
mark
or color
01
or Brown
12
or None
1 Yellow 1 47.995 – 48.000
23
or Blue
02
or None
13
or Blue
2 None 2 47.985 – 49.995
24
or Yellow
03
or Blue
14
or Yellow
3 White 3 47.980 – 48.985
25
or Green
1EN0505
1EN0402
(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.
2. If the identification mark on the cylinder block bearing hole
is “1”, select a bearing with an identification mark of “2”.
1EN0317
(4) Except for the center bearing, all the upper bearings are
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.
11A-12-6
4G1 ENGINE (E-W) – Crankshaft and Cylinder Block
<Added>
Timing belt side
Cylinder block journal bore
diameter
Grooveless
Grooved
Grooveless
Lower bearing (Nos. 1,
2, 4, and 5)
Upper bearing (Nos.
1, 2, 4, and 5)
Upper and lower
bearings (center) (No.3)
Identification mark
Identification color
1EN0920
<Incorrect>
<Correct>

Mitsubishi 4G1 series Specifications

General

Brand	Mitsubishi
Model	4G1 series
Category	Engine
Language	English