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10.12
Section 10
Inspection and Reconditioning
Figure 10-15. Installing Cross Shaft Oil Seal.
Figure 10-16. Governor Shaft Seal Installation.
2.0 mm (0.0787 in.)
Governor Cross
Shaft Seal
Figure 10-17. Governor Shaft Seal Position.
Water Pump
The water/coolant pump consists of a sealed impeller
assembly, which includes the outer cover and a
cogged drive pulley. When the pump is mounted to the
crankcase, the impeller fits into a cast recess, and the
cover seals against an O-Ring outside the perimeter of
the recess.
Figure 10-18. Water Pump.
The impeller assembly is not serviceable, but it should
be inspected for wear or damage.
1. Inspect the impeller to make sure the blades are
in good condition and free of any cracks, nicks, or
damage.
2. The impeller shaft should rotate smoothly, without
binding or wobbling, and there should be no sign
that coolant has leaked past the shaft to the outer
surface of the cover.
3. Check that the drive pulley is not cracked or
damaged in any way.
If your inspection causes you to doubt its reliability, the
impeller assembly should be replaced. Always use a
new O-Ring whenever the water pump is removed. Do
not reuse the old O-Ring or try to use RTV in its place.