1939 Waterwitch

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  • November 11, 2024 at 6:43 pm #292052
    ChadJ
      1. Hoping someone might know the modern day equivalent condenser and spark plug for a ’39 Waterwitch? I got this thing looking pretty but it sure would be nice if I could get it to fire. It has a very weak intermittent spark.
      November 11, 2024 at 9:48 pm #292055
      The Boat House
      Participant

        This is the one I use. Champion d 16 spark plug. If you have the 4.75 hp. twin, those coils are often bad. Tubs

        November 12, 2024 at 9:03 am #292056
        David Bartlett
        Participant

          US Member

          Also, make sure the points are clean and properly set.

          David Bartlett
          Pine Tree Boating Club Chapter

          "I don't fully understand everything I know!"

          1 user thanked author for this post.
          ChadJ
          November 12, 2024 at 10:16 am #292057
          crosbyman
          Participant

            Canada Member - 2 Years

            When in doubt about capacitor size  one can always refer to Mr.Mohat ” capacitor”  articles  & the subject of sizing  capacitors

            Magazine Articles | Western Reserve Chapter

            Motors 1930s and 1940s (Steel Magnets, typically 2 pole / 3 pole construction, “medium” size
            spark coils)….use a .3 to .47uF condenser.

            Motors 1930s and 1940s, (Alnico Magnets, 2 pole / 3 pole construction, smaller size spark
            coils)….use a .22 to .47uF condenser.

             

            Microsoft Word – Part3_Sizing_Condensers_Correctly.doc

             

            Joining AOMCI has priviledges 🙂

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            ChadJ
            November 13, 2024 at 4:36 pm #292085
            ChadJ
              The Boat House wrote:

              This is the one I use. Champion d 16 spark plug. If you have the 4.75 hp. twin, those coils are often bad. Tubs

              It’s the 2.5hp with torpedo tanks.

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