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Hey there. My son recently bought a boat with a engine model # mcm 3.7l 224 165hp mercruiser. It's called a closed system by reading some threads. I can't seem to find the same motor on you tube to winterize this motor with peace of mind not cracking anything on the motor. Does anyone have any...
Was out with my sons today in his boat with the 3.7 mercruiser. He bought of a buddy of mine who took good care of it. Changed impeller last year. It gets up in temp if you idle for too long. Today the water temp was 65 degrees. The engine was running warm. Then noticed she got up to 200 after...
So I acquired a 1983 Johnson 10hp commercial. Model J10RSM. I have had no luck finding this model to acquire parts like impeller and prop seals. I did however find a parts catalogue and service manual from a original publishing house but way overpriced. 100$ for manual and 50$ for a parts...
