Posted by oldmisterbill on October 21, 2013 at 05:58:42 from (173.187.163.20):
In Reply to: Re: to-30 over heat posted by Tom Bowman on October 15, 2013 at 07:50:16:
Tom I'm not sure why they cast it like that.Maybe because it was easier to cast it that way ,maybe because it would allow more water surface area to transfer the heat.
As for the over heating - after so many repairs a good inspection would be in order. Especially checking the surface of the head with the block to check for perfect flatness. Cracks? Rust crud.
Does it build pressure B4 it gets warm (sign of gasket , crack, compression leak). 30 yeqrs ago a customer bought a problem engine to me it was over heating & nobody could ix it , nor find the problem. I lost my confidence in radiator "sniffers" (a chemical test to check for exhaust gas in the coolant)over that one.I couldn't find it either ,but it was steaming slightly out the exaust engine - no leak.n On a hunch -It was a v6 I pulled the intake and head replaced the gaskets (after checking the surface) and it was fixed. I never found the exact leak ( probably very tiny ) but it was fixed. My point is an over heating problem can be caused by so many variabkes - BE VERY thorough in your inspections.
This post was edited by oldmisterbill at 05:59:57 10/21/13.
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