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

EAS26510

DISASSEMBLING THE WATER PUMP

1. Remove:
• Water pump seal "1"
TIP
Remove the water pump seal from the inside of
the crankcase cover "2".
2
2. Remove:
• Bearing "1"
• Oil seal "2"
TIP
Remove the bearing and oil seal from the out-
side of the crankcase cover "3".
3
EAS26540

CHECKING THE WATER PUMP

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

ASSEMBLING THE WATER PUMP

1. Install:
• Oil seal "1"
1
2. Install:
• Water pump seal "1"
ECA14080
NOTICE
Never lubricate the water pump seal surface
with oil or grease.
1
TIP
2
• Apply coolant to the lip of the water pump seal.
• Install the water pump seal with the special
tools.
3. Mechanical seal installer
6-13
New
(into the crankcase cover)
Installed depth "a"
0 mm (0 in)
(into the crankcase cover "2")
Mechanical seal installer
90890-04132
Water pump seal installer
YM-33221-A
Middle driven shaft bearing driv-
er
90890-04058
Bearing driver 40 mm
YM-04058
4
3
WATER PUMP
New
1
a
New
A
New
1
2