Inspection; Assembly - Yamaha RS90GTZ Service Manual

WATER PUMP

INSPECTION

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

ASSEMBLY

1. Install:
• Oil seal
(to the water pump housing)
TIP
• Before installing the oil seal, apply tap water
or coolant onto its outer surface.
• Install the oil seal with a socket that matches
its outside diameter.
2. Install:
• Bearing
TIP
Install the bearing with a socket that matches
its outside diameter.
3. Install:
• Water pump seal
NOTICE
Never apply oil or grease onto the water
pump seal surface.
6-14
COOL