Re: 54 Johnson RD15A top seal (still) leaks

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September 9, 2015 at 9:00 pm #23544
Don
Participant

    US Member

    OK, well how about spraying WD40 into the vertical crankcase groove that channels excess oil down to the horizontal groove/vacuum port. Spraying WD40 into the vertical groove should eventually lead to seeing WD40 spilling out of the vacuum bleed port that is visible with the carb removed. What do you think of this idea/theory?