waterpump is killing me!
I decided to replace my water pump. I have now taken it off 3 times, and gone through 2 new gaskets, and two different types of gasket sealer.
I cleaned the mating surfaces really good and finished up with alcohol. Once dry I apply the gasket sealer and gasket, and bolt it toghether and let set over night, in this last case it sat for a 3 days. When I install it in the car I use the pressure checker and pump it up. It holds pressure for a few minutes, but after that I can see its dropping 1 or 2 PSI every few minutes. Spraying soapy water around I find bubbles around the water pump seal. What am I missing. After this last time I just can't imagine what else I could do to stop it.
It is supposed to be able to hold this pressure for longer then a few minutes right? I haven't put any coolant in yet, is it just supposed to be water tight? and not air tight? Should I test with coolant in there? I just dont know