12. COOLING SYSTEM
12-9
Downtown 300i ABS
WATER PUMP SHAFT REMOVAL
Disconnect the water hose from the right
crankcase cover.
Remove bolts attaching the right crankcase
cover.
Remove the water pump bearing snap ring
from the water pump assembly.
Remove the water pump shaft and inner
bearing.
Remove the water pump shaft outer
bearing.
MECHANICAL SEAL REPLACEMENT
Drive the mechanical seal out of the water
pump assembly from the inside.
WATER PUMP SHAFT INSTALLATION
Drive a new water pump shaft
outer bearing
into the water pump assembly from the
inside.
Install the water pump shaft and shaft inner
bearing into the waster pump assembly.
Install the snap ring to secure the inner
bearing properly.
Mechanical Seal
Snap Ring
Water Pump Shaft
Apply sealant to the right crankcase
cover of a new mechanical seal and then
drive in the mechanical seal.
＊
Water Pump Shaft
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