6-13
WATER PUMP
COOL
NOTE:
CAUTION:
NOTE:
EAS00473
CHECKING THE WATER PUMP
1. Check:
S water pump housing
1
S water pump cover
2
S impeller
3
S rubber damper
4
S rubber damper holder
5
S water pump seals
S oil seal
Cracks/damage/wear ! Replace.
2. Check:
S bearing
Rough movement ! Replace.
3. Check:
S water pump outlet pipe
S radiator outlet hose
Cracks/damage/wear ! Replace.
EAS00475
ASSEMBLING THE WATER PUMP
1. Install:
S oil seal
New
1
(into the water pump housing
2
)
S Before installing the oil seal, apply tap water or
coolant onto its out surface.
S Install the oil seal with a socket that matches its
outside diameter.
2. Install:
S water pump seal
New
1
Never lubricate the water pump seal surface
with oil or grease.
S Install the water pump seal with the special
tools.
S Before installing the water pump seal, apply
Yamaha bond No.1215 or Quick Gasket
2
to
the water pump housing
3
.
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