Update. Was able to break the screws loose with some heat and impact screwdriver as kimcrb1 described. Went to Harbor Freight and purchased their Impact
Perhaps my point was missed or it's not an issue for you!
Sea water or river water or lake water has the ability to remove great amounts of heat
I am in need of an exhaust manifold for a 170 cu. in. 100 HP Interceptor marine engine (Ford)
Please reply with photos.
Regardless of the problem, always start with the basic trouble shooting procedure. Without this information, you are simply doing a guess procedure and
Thanks for the advice, overcooling did occur to me but I did not think it would be too much of a problem once the engine had got up to