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I would like to build my own heat exchanger to cool my boat engine. Does anyone know the haet exchange capacity In BTU/ HR needed to cool a 5.0 liter???
55EL79C Johnson
Cleaned the carbs and all looks good. New coils plugs and wires. after sitting awhile, when first started, it will idle good for a couple of minutes then it will pop and shut off. It starts back up and will run all day but wont Idle. what are the things that could cause this?