At 01:52 PM 3/5/2011, Jim Felder wrote:
>Thanks, when the rain stops I'll get on it. Speaking of the relief
>hole, the shop where I buy my parts suggest drilling one if it's not
>there. What do you think?

I think Dennis knows what he's talking about.  The cooling system
works very well when its proper parts are in place and operating
correctly.  Its failures are in over-complexity of external plumbing
that properly should be inside the engine, not in function.  Unless
you have an engineering-level understanding of the design
considerations involved you're not likely to make it better.

Yours,
David