1939 Champion model S1E

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  • June 30, 2022 at 9:08 am #262230
    Buccaneer
    Participant

      US Member

      Perhaps check “how good of spark” you have. Most good coils should be
      able to jump a 1/4″ “open air” spark, which means you have enough
      spark intensity to fire the plug under compression.
      Could you have flooded the engine terribly? Been there, done that!
      It sounds like you have excellent compression.

      Prepare to be boarded!

      June 30, 2022 at 11:20 am #262231
      ml_mcm
      Participant
        Buccaneer wrote:

        Perhaps check “how good of spark” you have. Most good coils should be
        able to jump a 1/4″ “open air” spark, which means you have enough
        spark intensity to fire the plug under compression.
        Could you have flooded the engine terribly? Been there, done that!
        It sounds like you have excellent compression.

        With good compression ( I wasn’t sure if 80-85 was good.  Thought it might be but always like to get confirmation) it could be the condenser since it is a new coil.  I will install a new condenser.  I have one and I’ll hope for the best.

        July 21, 2022 at 8:25 pm #263386
        ml_mcm
        Participant

          UPDATE:

          Still not running but

          put new condenser. So new coil and new condenser

          Found the instructions to set point on this magneto. set the point to be 0.020. Seemed like it was quite a bit more than that but set it right.   No Spark. Had it with tester but not at plug. Adjusted the points a little wider thinking maybe it was wider before for a reason. Same.  Plug gap looked wide and didn’t have a gauge with me so couple taps and narrowed it. Very nice blue spark!  Put it in the barrel and it popped a couple separate times gave a puff of smoke each time and that was it. I have the gas tank removed and just have a small bottle connected to the carb

          I think I’ll clean carb one more time and get the plug gap (I think I read 0.027 somewhere) correct with a gauge

          Any other thoughts or suggestions I’m all ears.  Really want to get this thing running and it ran nice for 5 seconds at one point early on so I know it has it in it

          ML

           

           

          July 21, 2022 at 8:38 pm #263387
          dave-bernard
          Participant

            US Member

            .018 – .020 sounds better. plug .025 sounds better. I don’t have a book.

            • This reply was modified 3 years, 6 months ago by dave-bernard.
            July 21, 2022 at 9:12 pm #263389
            Bob Wight
            Participant

              US Member

              A little hard to read but my copy of the Champion motor specs (attached here) for the S1E shows the points at .015 and the plug gap at .027.

              Champion-Motor-Specs

              Bob

              1937 Champion D2C Deluxe Lite Twin
              1954 Johnson CD-11
              1955 Johnson QD-16
              1957 Evinrude Fastwin 18
              1957 Evinrude 3022
              1958 Johnson QD-19
              1958 Johnson FD-12
              1959 Johnson QD-20

              “Every 20 minute job is only a broken bolt away from a 3-day project.”
              "Every time you remove a broken or seized bolt an angel gets his wings."

              July 21, 2022 at 10:20 pm #263395
              ml_mcm
              Participant

                bobw,

                If I have a bigger gap but still see a good spark could the results be what I’m seeing?  A sputter every once in a while. I don’t have any experience with cause and effect on gap size.  I do have a lot of experience taking this flywheel off I can do it in my sleep

                ML

                July 21, 2022 at 11:46 pm #263397
                Bob Wight
                Participant

                  US Member

                  That could be your issue.  On my ’37 Champion, I initially had the points gapped a little too wide but still had what appeared to be a good spark at the plug in open air.   But I couldn’t get it to fire off and run until I reset the points to the specified gap.   The starting instructions also say to advance the timing lever slightly to the right of center, but on mine I had to move it a lot further to the right before it would start.   Every motor is probably a little different but you might try that on yours as well and see if it will fire up.

                  Bob

                  1937 Champion D2C Deluxe Lite Twin
                  1954 Johnson CD-11
                  1955 Johnson QD-16
                  1957 Evinrude Fastwin 18
                  1957 Evinrude 3022
                  1958 Johnson QD-19
                  1958 Johnson FD-12
                  1959 Johnson QD-20

                  “Every 20 minute job is only a broken bolt away from a 3-day project.”
                  "Every time you remove a broken or seized bolt an angel gets his wings."

                  1 user thanked author for this post.
                  ml_mcm
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