Reply To: Dumb Cotter Pin Question

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April 17, 2025 at 9:15 am #295513
LARRY CATON
Participant

    US Member

    Wow!  My paragraph vanished! LOL

    The cotter pin in question is for the propeller cone/nut on my FD-10.  A 5/32″ pin is too big, and a 1/8″ feels loose.  The hole in the prop shaft perfectly fits a 9/64″ drill bit.

    I can’t find a 9/64″ cotter pin anywhere online or at local hardware stores.

    Should I just tighten the cone until it’s snug and make sure the 1/8″ cotter pin’s head recedes into the cone?

    1956 Johnson 15 Hp, FD-10
    1957 Johnson 5.5 Hp, CD-14
    1958 Johnson 5.5 Hp, CD-15