Ch. 13 COOLING SYSTEM
13-8
Water Pump
Check water pump seal / cooling system
divulges inspection
Disassembles the refrigerant drain bolt, overflows
little buckles the actually fluid, confirmed overflows
the refrigerant whether has the greasy dirt.
Turns on the engine oil gauge rule, the inspection
engine oil whether does have bleaches situation of
the emulsified.
If has the above two kind of interior to divulge the
phenomenon, possibly for the water pump inner two
seal damages, the engine cooling system damages
or the cylinder and the cylinder head gasket
damages, please first dismantles the right crank
case to confirms the replacement water pump seal,
if does not have the question to take apart for
overhaul cooling system of system again the
cylinder head, the cylinder.
Removal of water pump
Loosen the drain bolt to drain out the coolant.
Remove the water hose.
Loosen 5 bolts and remove the pump cover.
Loosen 9 bolts and remove the right cover.
Take off the gasket and dowel pins.
Turn pump impeller clockwise and remove.
Caution
The impeller is provided with left turn
thread.
Remove the cir clip from the right crankcase
cover.
Remove the water pump shaft and the inner
bearing.
Remove the outside bearing by inner bearing
puller.
Rotate the inner ring of bearing, the bearing shall
move smoothly and quietly.
If the bearing does not rotate smoothly or
produces a noise, replace it with new one.
Special tool:
Inner bearing puller
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