ENGINE
4-31
INSPECTION AND REPAIR
1. Measure:
• Free length
a
Out of specification => Replace.
VALVE SPRING
NOTE:
• Replace the guide and retainers whenever
the valve is replaced.
5. Measure:
• Thickness
a
Out of specification => Replace.
6. Measure:
• Warping (valve stem)
Out of specification => Replace.
Thickness:
0.8-1.2 mm (0.031 ~ 0.047 in)
Warping:
Less than 0.010 mm
Spring free length:
Internal
External
36.17 mm
36.63 mm
36.17 mm
36.63 mm
Intake
Exhaust
a
