since all he did that could affect that portion of the job, was change head gaskets, I would have to venture a guess the problem would be there....Unless he somehow hooked the water line to a vacuum line, or a radiator hose to a crankcase breather. In either case the pan will have to come off unless you don't care about the cup of liquid that doesn't really come out when you drain the thing. (in the words of my co-worker, when you mix water and oil, you end up with "snot-like goop") But you will have to make sure the NEXT gasket DOES exactly match. Make sure the bolt holes are clean all the way to the bottom (bottom tap), and all the threads on the bolts are clear the entire length. The new gasket may not be as thick as the one removed allowing the bolts to not seat properly. Make sure the surfaces are flat, and clean. But in summation, it really, really sounds like you got the wrong gasket, or put it on upside down or something and have basically created a direct path to the oil pan. Oh and one more thing. I would get it fixed and if it works correctly, I would change the oil pretty much immediately upon verifying said correct operation. Modern oil formulations will tolerate a relatively large amount of water, but why take chances at our age?
