Operation Manual

BX25. RCK54{P)-23BX. RCK60B-23BX.lA240. BT601. W8M
ENGINE
(4) Crankshaft
3GFABAB1 P054A
o
3TMABABl P074A
3EEABAB1P147A
Crankshaft Side Clearance
1. Set a dial indicator with its tip on the end of the crankshaft.
2. Measure the side clearance by moving the crankshaft to the front
and rear.
3. If the measurement exceeds the allowable limit, replace the
thrust bearings.
4. If the same size bearing is useless because of the crankshaft
journal wear, replace it with an oversize one referring to the table
and figure.
Factory spec.
Crankshaft side
0.15100.31 mm
0.0059 to 0.0122 in.
clearance
Allowable limit
0.50mm
0.0197 in.
(Reference)
• Oversize thrust bearing
Oversize Bearing
Code Number Marking
0.2mm
Thrust bearing 1 02 15261-23950 02008
0.008 in.
Thrust bearing 2 02 15261-23970
02008
0.4mm
Thrust bearing 1 04
15261-23960
04008
0.016 in.
Thrust bearing 2 04 15261-23980
04008
• Oversize dimensions of crankshaft journal
Oversize
0.2mm
0.008 in.
0.4mm
0.016 in.
Dimension A
23.40 to 23.45 mm
0.9213
to 0.9232 in.
23.80 to 23.85 mm
0.9370 to 0.9390 in.
Dimension B
46.1 to 46.3 mm
1.815 to 1.823 in.
46.3 to 46.5 mm
1.823 to 1.831 in.
Dimension C
- 1.8 to 2.2 mm radius
0.071 to 0.087 in. radius
1.8 to 2.2 mm radius
0.071 to 0.087 in. radius
(0.88)
The crankshaft journal must be fine-finished
to higher than vvvv.
W11586190
Crankshaft Alignment
1. Support the crankshaft with V blocks on the surface plate at both
end journals.
2. Set a dial indicator with its tip on the intermediate journal.
3. Measure the crankshaft alignment.
4. If the measurement exceeds the allowable limit, replace the
crankshaft.
0.02 mm
Crankshaft alignment
Allowable limit
0.0008 in.
W11613530
1-S52