1930 Johnson A-50 Keyway

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  • June 23, 2022 at 4:20 pm #261864
    AverageJoe
    Participant

      Hey Guys,

      Thanks for the help on the coils.  Have new spark plug wires on & good spark on both.

      Next question: The keyway on the crankshaft looks like it takes 2 woodruff keys; one upper & one lower.  I’ve seen this set up on a similar 1927 model.  I’m unsure if this is correct as I don’t have the 1930 A-50 parts manual.  I’m wondering what size keys are needed, if anyone knows.

       

      Thanks for the info.

      June 23, 2022 at 9:33 pm #261874
      Buccaneer
      Participant

        US Member

        My 1929 J-25 used the double woodruff keys, and they were #6 keys,
        also known as 505 keys. Not sure if yours would be the same.
        Attached is a chart I used.
        woodruff-key-dimensions

        Prepare to be boarded!

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