Disassembly; Inspection - Yamaha PZ50W Service Manual

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WATER PUMP

DISASSEMBLY

1. Remove:
• Impeller
• Water pump seal 1
NOTE:
Remove the water pump seal 1 from the inside of
the water pump housing 2.
2. Remove:
• Bearing 1
• Oil seal 2
NOTE:
Remove the bearing 1 and oil seal 2 from the
inside of the water pump housing 3.
3. Remove:
• Rubber damper holder 1
• Rubber damper 2
(from the impeller, with a thin, flat-head
screwdriver)
NOTE:
Do not scratch the impeller shaft.

INSPECTION

1. Inspect:
• Water pump housing cover
• Water pump housing
• Impeller
• Rubber damper
• Rubber damper holder
• Water pump seal
• Oil seal
Cracks/damage/wear → Replace.
2. Inspect:
• Bearing
Rough movement → Replace.
COOL