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  1. R

    3.7 gets hot while idling

    Not sure. New one was installed before buying the boat. Runs cool. 160 when moving
  2. R

    3.7 gets hot while idling

    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...
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    Commercial Johnson 10hp

    Strathroy is where i live. In-between Sarnia and london. 402 is a stones throw north.Thanks. Runs great. Water flows good out of pee tube. Held hand on heads while running in a bucket and barely warm.Just wanted to replace impeller or have backup and dont want to guess on plugs.
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    Commercial Johnson 10hp

    I live in Ontario Canada. I've known about this motor for 30+yrs and it on a 14ft boat with a steering wheel. Back then always known as a commercial. I doesn't look like it was ever torn apart.According to the Johnson publisher Ken Cook Company,it is a commercial 83 10hp. You can still get shop...
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    Commercial Johnson 10hp

    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...
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