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SERVICING
6. Servicing
2. Move the crankshaft to the front and rear to
measure the side clearance.
NOTE
• If the measurement is more than the service
limit, replace the thrust bearings.
• If the same dimension bearing is not
applicable because of the crankshaft journal
wear, replace it with an oversize one. Refer
to the table and figure.
Service specifi-
cation
Side clearance of
crankshaft
Service limit
(Reference)
• Oversize dimensions of crankshaft journal
0.20 mm
Oversize
0.0079 in.
Dimension
51.50 to 51.70 mm
A
2.028 to 2.035 in.
Dimension
28.20 to 28.25 mm
B
1.111 to 1.112 in.
Dimension
2.3 to 2.7 mm radius
C
0.091 to 0.10 in. radius
The crankshaft journal must be fine-finished to higher than Rmax
= 0.8 S.
05-E4B SERIES,05-E4BG SERIES
0.15 to 0.31 mm
0.0059 to 0.012 in.
0.50 mm
0.020 in.
0.4 mm
0.016 in.
51.60 to 51.80 mm
2.032 to 2.039 in.
28.40 to 28.45 mm
1.119 to 1.120 in.
2.3 to 2.7 mm radius
0.091 to 0.10 in. radius
A:
Dimension A
B:
Dimension B
6.31 Checking crankshaft alignment
Tools required
• V blocks
• Surface plate
• Dial gauge
1. Hold the two end journals of crankshaft with V
blocks on the surface plate.
2. Set a dial gauge with its point on the middle journal.
3. Turn the crankshaft slowly and read the variation on
the indicator. Half of the measured value is the
alignment value.
NOTE
• If the measurement is more than the service
limit, replace the crankshaft.
Crankshaft align-
Service limit
ment
6.32 Checking oil clearance between
crankpin and crankpin bearing
Tools required
• Plastigauge
4. ENGINE
C:
Dimension C
0.02 mm
0.0008 in.
4-65
KiSC issued 03, 2023 A
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