Home Forum Ask A Member 1940 Speedifour Electric

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  • #6300
    Buccaneer
    Participant

      US Member

      I found this photo (of Gary’s) in the Green Board, and
      it intrigued me, but I could find no information about it.
      Was it electric start, or rather had DC output for boat
      lights, etc? It looks like it had an amp meter on it.
      Any "real" photos "out there"?


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      Prepare to be boarded!

      #52642
      bill-loveland
      Participant

        Chris is the expert on these, but I have some familiarity with them. It is an electric start outboard – the flywheel is replaced by the rotating mass of the electric motor/starter/generator. I’m sure somebody will point you to the threads that have pics. The ammeter displays the current generated while it’s running, to keep the battery fully charged. The flywheel magneto/coils/points system is replaced with a battery driven coil/points system.

        #52655
        garry-in-michigan
        Participant

          Lifetime Member

          It functions as an electric motor below 1,500 RPM and a RPM dependent switch turns it into a generator around 1,700 RPM. If you have a long no wake zone to navigate you better have a BIG battery or two. With a battery ignition when the battery is dead, the motor is dead. This 12 volt electric starter was offered on several models of Evinrude, Elto and Johnson. Evinrude also offered it as a trolling motor. . . 😆



          #52667
          Buccaneer
          Participant

            US Member

            Thanks for the replies. It sounds like the generator spins the motor over
            for starting and charging once running, which I could have envisioned.
            However, it being an electric outboard below 1500 rpm’s I never fathomed!
            Are the pistons moving while operating as an electric trolling motor?
            If not, what kind of an affair disengages the pistons / engine from the
            electric motor? Very interesting photos.
            Thanks!

            Prepare to be boarded!

            #52674
            nali
            Participant

              It s a beauty 🙂

              #52675
              bill-loveland
              Participant

                Yes, the whole internal rotating mass is in play. The port side cylinders have a compression release, so there’s that. But it still is rolling the starboard side cylinders over compression.

                #52678
                garry-in-michigan
                Participant

                  Lifetime Member

                  A couple pages from the 1934 catalog . . . 😀

                  #52686
                  Buccaneer
                  Participant

                    US Member

                    Interesting catalog pages Garry. I have my doubts about
                    the "All Electric" motor batteries lasting 8 hours though.
                    I wonder how many of those electric start Speeditwins, etc.,
                    survive?

                    Prepare to be boarded!

                    #52687
                    1aquaholic
                    Participant

                      Wow! I’ve never seen one of these! Awesome! Garry, you sir are a living encyclopedia of outboards! Thank you for sharing your vast knowledge! I ALWAYS enjoy reading whatever you post! I can always count on learning something new whenever you post!
                      Thank you sir, you are truly a treasure!
                      1Aquaholic
                      Greg Schneider

                      #52689
                      nali
                      Participant

                        Gsrry knows everything 😛

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