Sounds like when you put the pulley on the water pump you moved the shaft pushing the impeller back and unseating the seal. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "miltdanfoss" <dan.foss@xxxx> wrote: > Thought I'd share my experience this weekend. > > After rebuilding the engine because of a bad water pump, the darn > thing failed again on the first day I actually drove it anywhere > after the rebuild. > > When I took the failed water pump out this weekend, the pulley would > not rotate (and by the way, I only removed the belt, the throttle > barrell assembly and the intake plenum 'w pipe'). > > I saw on www.specialtauto.com a picture showing how to tell if the > pulley was pushed on far enough and sure enough it was out 3/4 of an > inch. > > When I took the back of the pump off, I found that the impeller wheel > had indeed been rubbing the back of the water pump case, and in fact > there was quite a bit of damage to both the back and the impeller > wheel too.