Thanks for the responses. Here's a thread that explains SOME of the problems that I have been having with the engine:
At Wits' End - Moyer Marine Atomic 4 Community
Now, I have water in the oil. I checked the entire exhaust system for clogs and now suspect a blown head gasket.
At any rate, I'm tired of spending more time working on the engine than sailing and my disgust level has maxed out.
I understand that the Atomic 4 was, perhaps, a good engine it its day and that the engine is old; but THIS engine is a POS.