Crankshaft - Jianshe JS125-6B Maintenance Manual

Crankshaft

1. Check
Crankshaft swing tolerance
Crankshaft swing tolerance:
Out of limit Replace
Note
Turn the crankshaft slowly for the measurement.
2. Check
Big-end side clearance
Standard side clearance:0.15-0.45mm
Out of limit Replace
3. Measurement
Crankshaft width (measure it with a vernier caliper)
Out of standard
4. Check
Crankshaft sprocket
Damage, wear Replace crankshaft
Bearing
Abnormal noise, instable rotation, loose
5. Check
Crankshaft oil-way
Blockage Clean it through compressed air
76
0.03mm
Used limit:0.8mm
Standard width:
46.95 47.00mm
Replace
ENGINE
Replace