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  1. #1
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    white oxidation on midsection new merc 4 stroke ?

    New Merc 150 4 stroke - 50 hours - white oxidation showing up on one side of lower mid section
    Other side has none. It is similar to what is seen on typical mid section on 2.5s.
    Any Body else seeing this? Obviously getting some heat.
    Last edited by CircleHook; 07-17-2017 at 08:47 AM.

  2. #2
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    Tourist Trap, Florida
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    Calcium and mineral buildup from the water splashing against the hot surface....Try some CLR on a rag and see if it comes off. Next is rubbing compound. My buds merc 150 4s does it, my 2.5's, my opti's.....My sons 25 hp really gets it.

  3. #3
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    Thanks- just wanted to be sure it was nothing -

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