POPPA-T
Member
I have a 1982 40 foot Albin Trawler. Powered by a single Volvo TAMD40A. Engine starts and runs great from idle to 2700 rpm, temp is 180. At 2800 rpm temp goes to 185 anything above 2800 rpm temp keeps rising. I have let it get as hot as 195 before slowing to 2600 rpm. Engine doesn't make black smoke at any speed. I have taken apart and cleaned heat exchanger, changed impeller, I have cleaned the fresh water side of the cooling system by running an approved cleaner through the engine for a hour. Can anyone tell me if I might be missing to do something??? Prop size is a 24X18 three blade.