1939 1/2hp Cub Barrel Test.

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  • April 29, 2025 at 11:49 am #295955
    Tubs
    Participant
      Finely getting some weather to do a little tank testing. I went through this motor this winter and it ran out of the water. The real test for these is – in the water – with the prop on. From the looks of the motor when I got it I thought the odds were more likely that it wouldn’t. Compression is 70lbs. Not great, but better that 60 or 65. Oh – check out the dent in the top right-hand side of the gas tank where “some dumb ass” dropped it right after it was painted.  Video link – https://youtu.be/_gicwMuUQMk  

      A "Boathouse Repair" is one that done without having tools or the skills to do it properly.

      April 29, 2025 at 1:30 pm #295957
      David Bartlett
      Participant

        US Member

        Great job Tubs!

        I feel your pain about the “dumb ass”.

        David Bartlett
        Pine Tree Boating Club Chapter

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

        April 29, 2025 at 3:54 pm #295960
        RICK EICHRODT
        Participant

          Lifetime Member

          You know you can heat up the tank joint and split it into two pieces.  Tap out the dents and then resolder the two haves back together again.  Make sure the inside of the tank has been washed with Dawn soap several times to get rid of the fumes.

           

          April 29, 2025 at 10:16 pm #295964
          Tubs
          Participant

            I’ve done that. I struggle getting them back together. Propane torch is too hot and the soldering iron I have isn’t hot enough. I’m restoring the tool they used to do it originally.  I’m going to see if I can learn to do it that way.

            tank

            A "Boathouse Repair" is one that done without having tools or the skills to do it properly.

            April 30, 2025 at 2:06 pm #295985
            bob-d
            Participant

              US Member

              Tubs, great job!
              You brought it back from the dead to become a really strong runner.
              It’s a tricky motor with that tiny cylinder bore to get enough compression to turn the prop in the water. It was really cranking in the bucket. What was the state of the coil and points when you got it?
              Is it a Maine candidate? I’m already praying for a dry summer.
              Bob D

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