ENG
R-97
ENGINE INSPECTION AND REPAIR
4-25
5. Inspect :
• Crankshaft journal oil passage
Clogged Ÿ Blow the oil passage with
compressed air
4. Inspect :
• Crankshaft Sprocket ¿
Wear/damage Ÿ Replace Crankshaft
• Bearing À
Wear/crack/damage Ÿ Replace
Crankshaft
3. Measure :
• Crank width ç
Out of specification Ÿ Replace Crankshaft.
2. Measure :
• Big end side clearance ç using a Feeler
Gauge
Out of specification Ÿ Replace big end
Bearing , Crank Pin and Connecting Rod
CRANKSHAFT
1. Measure :
• Crankshaft runout, using a Surface plate
and Dial gauge. Keep the Crankshaft on
V blocks and rotate slowly while
measuring.
Out of spescification Ÿ Replace
Runout : 0.01 mm
<limit> : <0.03 mm>
Big end side clearance :
0.15 ~ 0.45 mm
Crank width :
46.95 ~ 47.00 mm