I ended up with cracks in the oil galley in the heads.. was pumping oil into the water.. not exactly what you have.. but still a failure to check.. was a Bitch to find, as normal inspection showed not real signs of gasket problems, so we started looking elsewhere.. that is when we started pressure checking everything. Head shop finally found it. Sounds like you are going to be getting good at yanking motors.. some things you do not want to get good at.