Disassembling The Water Pump; Checking The Water Pump - Yamaha YZF-R1K Service Manual

WATER PUMP
EB503020

DISASSEMBLING THE WATER PUMP

1. Remove:
• water pump seal 1
NOTE:
Tap out the water pump seal from the
inside of the water pump housing.
2 Water pump housing
2. Remove:
• oil seal 1
• bearing 2
NOTE:
Tap out the bearing and oil seal from the
outside of the water pump housing.
3 Water pump housing
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.
EB503032

CHECKING THE WATER PUMP

1. Check:
• water pump housing cover 1
• water pump housing 2
• impeller 3
• rubber damper 4
• rubber damper holder 5
Cracks/damage/wear → Replace.
2. Check:
• water pump seal
• oil seal
• water pump inlet pipe
Cracks/damage/wear → Replace.
• bearing
Rough movement → Replace.
5 - 15
COOL
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