Disassembling The Water Pump; Checking The Water Pump; Assembling The Water Pump - Yamaha YZF-R15 Service Manual

DISASSEMBLING THE WATER PUMP

1. Remove:
• Water pump seal "1"
NOTE:
Remove the water pump seal from the inside of
the water pump housing.
2. Remove:
• Bearing "2"
NOTE:
Remove the bearing from the outside of the wa-
ter pump housing "3".
3

CHECKING THE WATER PUMP

1. Check:
• Impeller shaft
Cracks/damage/wear → Replace.
• Bearing
Rough movement → Replace.
• Radiator outlet hose
Cracks/damage → Replace.

ASSEMBLING THE WATER PUMP

1. Install:
• Water pump seal "1"
(into the water pump housing "2")
CAUTION:
Never lubricate the water pump seal surface
with oil or grease.
NOTE:
• Install the water pump seal with the special
tools.
• Install the water pump seal with the special
tools to the specified depth as shown in the il-
lustration.
2
1
New
Mechanical seal/bearing installer
YSST-722
3
2
A. Push down
3. Mechanical seal installer
4. Middle driven shaft bearing driver
a. 0–0.5 mm
2. Lubricate:
• Water pump seal lip
Recommended lubricant
Lithium-soap-based grease
3. Install:
• Water pump housing gasket "1"
• Water pump housing plate "2"
• Impeller shaft
• Impeller shaft retainer "3"
NOTE:
• Before installing the impeller shaft retainer, lu-
bricate the slit on impeller shaft end with a thin
coat of lithium-soap-based grease.
• Install the water pump housing gasket "1" as
shown in the illustration.
• After installation, check that the impeller shaft
rotates smoothly.
6.8
WATER PUMP
A
4
1 New
a
New