CRANKSHAFT,
BEARING
AND
OIL
SEAL
R -
0.059
IN
{1.5MMJ
R -
0.059
IN
[1.5MMJ
MEASURE
THE
CRANKSHAFT
OIL
CLEARANCE
The crankshaft
oil
measured
by
using a plastic gauge
as
follows:
1.
The
oil
and
grease and other foreign matters
form
the
crankshaft journal and bearing inner surface.
2.
Install
the
crankshaft.
3.
Cut
the
plastic gauge
to
the same length
as
the width of
the
bearing
and
place it
on
the
journal in parrallel
with
its
axis.
4.
Gently
place
the
main bearing cap over it and tighten
the
bolts
to
the
specified torque.
5.
Remove
the
bolts and gently remove the main bearing .
cap. Measure
the
width of
the
smashed plastic gauge
(at
its
widest section)
by
using the scale printed on
the
plastic
gauge.
MAIN
BEARING
BOLT
TORQUE
36 -
40
FT-LBS
[50-56Nm]
~
PLASTIGAUGF
SCALE
INSPECTING
THE
CRANKSHAFT
REAR
OIL
SEAL
1.
Inspect
the
oil
clearance lip
for
wear or damage. Check
the
rubber portion for deterioration and hardening.
Replace
the
seal
if
at
all
suspect.
2.
Check
the
oil
case for cracks
and
damage.
If
here
is
damage,
replace the case.
CRANKSHAFT
BEARINGS
SPECIFICATIONS
Upper
and
Lower
When the bearings are
to
be
replaced, select the correct
ones
and
install them
in
positions according
to
the identification
marks stamped
on
the
crankshaft and the top surface of
the
cylinder block.
CRANKSHAFT
JOURNAL
DIAMETER
Identification
Marks
1
2
3
Journal
Diameter
1.5746
-1.5748
in
(39.994
-
4O.ooomm)
1.5743
-1.5746
in
(39.988
-
39.994mm)
1.5741
-1.5743
in
(39.982
-
39.988mm)
/NO.4
/NO.3
_NO.2·
....
---""-.J
-NO.1
~NO.2ARM
CRANKSHAFT
BEARING
THICKNESS
CAMSHAFT
JOURNAL
Identification
Colors
brown·
blue
yellow
green
o
Bearing
Thickness
0.0783
-
0.0784
in
(1.988
-1.991mm)
0.0784
-
0.0785
in
(1.991
-
1.994mm)
0.0785
-
0.0786
in
11.994
-1.997mm)
0.0786
-
0.0787
in
1.997
-
2.ooomm)
0.0787
-
0.0789
in
2.000
-
2.oo3mm)
o
"iIf''''N..-
CYLINDER
BLOCK
0000
zzzz
CYLINDER
BLOCK
BEARING
DIAMETER
Identification
Marks
o
I
n:
Bearing
Inner
Diameter
·1.7323 -1.7325
in
144.000
-
44.oo6mm)
1_7325
-1.7328
in
44.006
-
44.o12mm)
1.7328
-1.7330
in
44.012
-
44_o18mm)
BEARING
IDENTIFICATION
MARKS
CRANKSHAFT
BEARING
SELECTION
CHART
Crankshaft
Journal
Crankshaft
Bearing
Cylinder
Block
Bearing
Identification
Marks
Identification
Marks
Identification
Marks
1
brown
0
I
blue
1I
2
0
blue
I
yellow
][
3
blue
0
yellow
I
green
1I
Engines & Generators
31
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