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V-Twin motor progress

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  • V-Twin motor progress

    I had a few days off of work so I did some more work in the V-Twin. Finished all the rocker arm parts and even made the stainless nuts. Started to work on the valve gear case and the tappets & bushings. I had some surgery on my right hand so I’ll be out of commission for the next few weeks so I can only plan on what I will work on next. Hope you all have a Happy new year.


    Fixture to make sure the gear mesh is correct.

    A close up of the rocker assembly

    sub-assembly just to check fit. The green things are old ear plugs – needed something to keep tension on the push rods.

  • #2
    Lookin' nice Jeff. Hope the hand heals well and fast.
    It's only ink and paper


    • #3
      What design is that?

      Is that a twin of you're own design or are you building from plans? That is a nice clean design.
      James Kilroy


      • #4
        Very much will she displace?


        • #5
          Nice work, heres a link of something similar that might strike your interest

          Opportunity knocks once, temptation leans on the doorbell.....


          • #6
            Amazing work Jeff. I can only hope to rise to that level some day.
            Pics of shop and some projects


            • #7
              Originally posted by jkilroy
              Is that a twin of you're own design or are you building from plans? That is a nice clean design.


              i'm wondering the same thing as jkilroy, are you building it from scratch, or a kit and plans? i would some day like to build something similar to an old single-cylinder engine and it would look something like yours (only half the cylinders).

              andy b.
              The danger is not that computers will come to think like men - but that men will come to think like computers. - some guy on another forum not dedicated to machining


              • #8
                I bought a set of plans from Jerry Howell for this motor. I think the size was a 32cc. I have about 85 hours in it so far and probably another 100 more to go. He has some single cylinder engines. I have never attempted anything like this before but I must say that I'm having a bunch of fun running the machines. About 20 years ago, I went from a machinist to an engineer position so I really miss getting my hands dirty machining stuff.

                Jerry's web site is