Water Pump - DAELIM ET-250 Service Manual

12-7 Water Pump

Check water pump seal / cooling system divulges
inspection
Ÿ Disassembles the refrigerant drain bolt, overflows little
buckles the N actually fluid, confirmed overflows the
refrigerant whether has the greasy dirt.
Ÿ Turns on lathe 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 say A 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 4 bolts and remove the pump cover.
Loosen 9 bolts and remove the right cover.
Take off the gasket and dowel pins.
Turn pump rotor clockwise and remove.
Caution
The rotor 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
Drain bolt