condor74 and moperformance.. good info. I called the machine shop (Shacklett Machine, Nashville, TN) who milled and pressure tested the heads, for ideas. John told me to pull all the plugs, have someone turn the engine, and watch each spark plug hole for any coolant discharge. If I don’t see any, then it may just be accumulated coolant in the exhaust pipe/mufflers. He said that if I don’t see any liquid at any of the plug holes, then re-install the plugs and run the engine until it burns out of the pipes/mufflers. I didn't let it run very long because of the amount of white steam.... it looked like a fog had moved into my yard...
Made me remember that when I broke the engine down, I first removed the exhaust manifolds, and when I lifted the head off, a lot of coolant dumped down the side of the engine, and the propped up exhaust pipe flange was there… maybe coolant poured down into the exhaust pipe. Then when I started it, it created a lot of steam from both pipes, much more than like on a cold morning. When I get back from out of town I will try this, and let you all know, hopefully that's it.
Ok, that did it. Pulled the plugs, cranked the engine, no coolant at plug holes. Ran the engine, some steam, but went away after burning off out of the pipes/mufflers. Runs great, no leaks, coolant level good. Seems like a lot of times it ends up being something simple. Next time I'll cover the exposed exhaust pipe flange when the heads are removed.
Thanks for your posts.














