Re: Oil Sludge from resurrecting a 1957 35 hp Johnson RJE-19

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May 28, 2017 at 9:47 pm #58548
garry-in-michigan
Participant

    Another thing is these resurrected outboards may have 20 years of old oil buildup on the inside of the exhaust chamber. Modern oil has a detergent component that will clean out this and old fogging oil build up used for long time storage. . . 😀