Reply To: OMC 5.5 and 7.5 Prop Nuts

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February 20, 2026 at 10:25 pm #304911
Dale
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    fisherman6 wrote:

    Yes, the snap caps are kind of a pain.  The TPU ones that I am printing work OK.  A Cotter pin would have been a better design from the start IMO.  So, you drilled a hole in the prop shaft for the Cotter pin from the new cap to fit through?

    -Ben

    No I did not drill a hole, it was there!  Maybe there are some years and models that don’t have a cotter key under the rubber cap?  I thought it was there to hold the propeller on if the nut popped off.  This motor is a ’57 Johnson.  I guess I learned something today!

    dale

    Once I thought I was wrong but I was mistaken!