1959 johnson wrist pin

Home › Forum › Ask A Member › 1959 johnson wrist pin

Viewing 3 posts - 1 through 3 (of 3 total)
  • Author
    Posts
  • August 6, 2022 at 5:33 pm #264045
    Sams Outboard
    Participant

      Hey all. I’ve got a 1959 johnson 10 horse I picked up at tomohawk and it’s got a bad knock on the upper cylinder. Does anyone know the part number for the rod and wrist pin? Thanks in advance

      August 6, 2022 at 5:51 pm #264047
      frankr
      Participant

        Have you torn it down for inspection yet?  Those motors were bad about beating the wrist pins loose in the pistons.  The official fix requires new rods, pistons, wrist pins, wrist pin bearings, and snap rings.  The new parts are as used in 1961-63 10hps.

        August 6, 2022 at 5:56 pm #264048
        frankr
        Participant

          But to answer your direct question, the original rod was 378330, and wrist pin was 303711

        • Author
          Posts
        Viewing 3 posts - 1 through 3 (of 3 total)
        • You must be logged in to reply to this topic.