<< I agree that the pump gears and upper case is new.  What bothers me is that the bottom part of the pump has been replaced with a used part from another car.  So now I have new pump gears with an old pressure relief valve from a gasoline engine.  At least I think it is from a gasoline engine. >>

I guess I missed that part of your posting. i thought you got a complete new pump missing only the oil pick-up.

BenT