Re: Mercury Mk 5 & 6 Gear Cases

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October 12, 2015 at 11:13 pm #25461
Buccaneer
Participant

    US Member

    In looking at the diagrams on MarineEngine.com, the only see one difference
    between the Mk 5 & Mk 6 gear box guts, and that is…..
    A. Different prop shaft ball bearings (Mk6 is thicker)

    Between the Super 5 and the Mk 5 & 6, there’s several differences of course….
    A.Prop shaft
    B. Pump Cartridge vs. Water intake housing
    C. Gears
    D. No Lower drive shaft (no neutral clutch on the Super 5)

    So if my MK 5’s prop shaft is different than my Mk 6’s, then
    I either have an early Mk 5 with the Super 5 style shaft,
    or someone’s mixed and matched parts over the years 🙁
    Will think about it more tomorrow!

    Prepare to be boarded!