Disassembling The Water Pump; Checking The Water Pump - Yamaha YFM660FS Grizzly 4x4 Supplementary Service Manual

WATER PUMP

DISASSEMBLING THE WATER PUMP

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

CHECKING THE WATER PUMP

1.Check:
Water pump housing cover 1
G
Water pump housing 2
G
Impeller 3
G
Rubber damper 4
G
Rubber damper holder 5
G
Cracks/damage/wear → Replace.
2.Check:
Water pump seal
G
Oil seal
G
Water pump outlet pipe
G
Cracks/damage/wear → Replace.
Bearing
G
Rough movement → Replace.
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COOL