Reply To: 18 Evinrude compression.

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February 7, 2024 at 7:29 pm #284738
Steve Martin
Participant

    US Member

    An oily mag indicates an upper crank seal problem but that will not effect compression numbers.  Your numbers are low and the spread (60/75) is much too wide.  If you can get it running and then retest compression it may increase somewhat.