[tubman]

The first thing I would do is drain the oil and inspect it closely to see if there is any water in it. Depending on that you may have a simple out, merely needing to seal the head bolts I have done two 8BA's and have used composite gaskets with no sealer. I did however, use sealer on all of the bolt threads. There are plenty of threads on here recommending everything from Permatex to some steam engine sealer. Find the problem before the deciding on the solution.