Checking The Water Pump; Assembling The Water Pump - Yamaha FZ8NA Service Manual

EAS26520
DISASSEMBLING THE WATER PUMP
1. Remove:
• Water pump seal "1"
TIP
Remove the water pump seal from the inside
of the water pump housing "2".
2. Remove:
• Oil seal "1"
• Bearing "2"
TIP
Remove the oil seal and bearing from the out-
side of the water pump housing "3".
3. Remove:
• Rubber damper holder "1"
• Rubber damper "2"
(from the impeller, with a thin, flat-head
screwdriver)
TIP
Do not scratch the impeller shaft.
EAS26541

CHECKING THE WATER PUMP

1. Check:
• Water pump housing cover "1"
• Impeller "2"
Cracks/damage/wear → Replace.
• Water pump housing "3"
Cracks/damage/wear → Replace the oil/
water pump assembly.
2. Check:
• Bearing
Rough movement → Replace.
3. Check:
• Water pump outlet pipe
• Water pump inlet pipe
Cracks/damage/wear → Replace.
EAS26560

ASSEMBLING THE WATER PUMP

1. Install:
• Bearing "1"
• Oil seal "2"
(into the water pump housing "3")
Installed depth "a"
17.2 mm (0.68 in)
TIP
Install the oil seal with a socket that matches
its outside diameter.
6-12
WATER PUMP
New
New