Oops! Sorry, I was talking water pump and thinking hydraulic pump. That won't work! John John Rodgers wrote: > Remove the water pump belt. You stand at the rear of the van, engine > hatch open, and have someone else starte the engine and let it run > briefly. It won't hurt anything for a few seconds. but it will be long > enough to isolate water pump noise from alternator noise. Easiest way I > know. > > Usually water pump is a squeal, the alternator bearings is a whine. > > But not always. Just most of the time. > > Good luck, > > Regards, > > John Rodgers > 88 GL Driver > > Kim Springer wrote: >> Hello List, >> >> I have a "whirring" noise that developed a few months back. Changes >> with the RPM of the engine. >> >> If I was back in the aircooled days, it would definitely be the >> generator bearings. It has that classic sound. >> >> So I pull the best and started it briefly...noise gone. But when I >> spin the alternator, it doesn't sound that bad. >> >> Could it be a the waterpump? What kind of a noise do those bushings >> make? >> >> Kim Springer >> '89 Tristar #7 2WD White >> >> >> > > |
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