12. Crankshaft / Crankcase
12-5
Crankshaft Inspection
Use a thickness gauge to measure left and right
clearance of connecting rod big end.
Service limit: 0.6 mm
Measure the clearance of the big end at the
vertical directions.
Service limit: 0.05 mm
Place the crankshaft on a V-block, measure
run-out of the crankshaft.
Service limit: 0.10 mm
Check crankshaft bearing.
Use hand to crank the bearing to see it moves
freely, smoothly and noiseless.
Check the inner ring to see it links firmly on the
bearing.
If any roughness, noise and loose linkage are
detected, replace the bearing with new one.
Caution
‧
The bearing shall be replaced in pair.
Special tool : outer bearing puller
SYM-6204010
Measuring point for the big end of
the connecting rod.
60 mm 90 mm
Outer bearing puller
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