Mitsubishi 4G1 series, Service Manual

Page: 519 / 522

ENGINE
Crankshaft, and Drive Plate
11
Crankshaft bore
ma
Lower bearing
Upper bearing
(for No.
REASSEMBLY SERVICE POINTS
CRANKSHAFT BEARING INSTALLATION
When the bearing is to be replaced, select the appropriate
bearing for assembly according to the identification color for
the crankshaft and identification mark stamped on the
cylinder block.
Journal OD Identification mark for
Crankshaft bearing
cylinder block bearing
identification
color support
section ID
mark
Yellow
0
1
2
I
2
I
3
I
2
None
1
3
2 I
4
I
0
3
I
White 1 4
2
5
(2) Install the upper crankshaft bearings to the cylinder block.
There is an oil groove in the upper cranksahft bearing. There
is no difference between upper and lower bearings for the
center (with flange).
(3) Install the lower crankshaft bearings to bearing cap and
apply engine oil to bearing surface.
BEARING CAP BEARING CAP
BOLT
INSTALLATION
(1) Install the bearing caps so that their arrows are positioned
on the timing belt side.
(2) When installing the bearing cap bolts, check that the shank
length of each bolt meets the limit. If the limit is exceeded,
replace the bolt.
Limit: Max. 71.1 mm (2.79 in.)
(3) Torque the bearing cap bolts to 25 Nm (18
and, from
that position, retighten
them (90”) turns more.
TSB Revision