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steaming 318 inboard

nauti-gal

New member
I have a 1979 silverton I recently bought that is driving me nuts. The starboard engine really steam when over 22 rpm. I have replaced the exhaust manifolds, risers, intake value, themostat, impeller, cleanes the transmission cooler. Still steams. No water in oil. Engine a 142 degree themostat, holds at 160. Ran vinegar through engine. Still steams. Help
 
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