Disassembling The Water Pump; Checking The Water Pump; Assembling The Water Pump - Yamaha 2009 XP500Y TMAX Service Manual

EAS26510

DISASSEMBLING THE WATER PUMP

1. Remove:
• Rubber damper holder "1"
• Rubber damper "2"
(from the impeller, with a thin, flat-head
screwdriver)
TIP
Do not scratch the impeller shaft.
2. Remove:
• Water pump seal "1"
TIP
Remove the water pump seal from the inside of
the water pump housing.
3. Remove:
• Bearing "1"
• Oil seal "2"
TIP
Remove the bearing and oil seal from the out-
side of the water pump housing.
EAS26550

CHECKING THE WATER PUMP

1. Check:
• Water pump housing cover
• Water pump housing
• Impeller shaft
• Water pump seal
• Oil seal
• Rubber damper
• Rubber damper holder
Cracks/damage/wear → Replace.
2. Check:
• Bearing
Rough movement → Replace.
3. Check:
• Water pump inlet pipe
• Water pump outlet pipe
Cracks/damage/wear → Replace.
EAS26570

ASSEMBLING THE WATER PUMP

1. Install:
• Oil seal "1" New
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.
Installed depth of oil seal "a"
11.5 mm (0.45 in)
a
2. Install:
• Water pump seal "1"
ECA14080
NOTICE
Never lubricate the water pump seal surface
with oil or grease.
TIP
• Install the water pump seal with the special
tools.
6-11
WATER PUMP
1
New