1952 Lauson Sportking S-351 Need some info

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  • March 4, 2019 at 11:33 pm #170351
    Eric McNett
    Participant

      Need some insight, lauson mod#S351 52 3hp. Would like some guidance on maintenance, parts acquisition etc. Any literature greatly appreciated!

      What Grade oil to use in crankcase and what spark plugs? Are there carb kits available Tillotson MT6A?

      Eric McNett
      Seattle AOMCI Member

      March 5, 2019 at 10:41 am #170363
      Buccaneer
      Participant

        US Member

        I have a pdf owners / parts manual .
        If you like, PM me your email address
        and I’ll send it to you.

        Prepare to be boarded!

        March 5, 2019 at 11:13 am #170365
        Eric McNett
        Participant

          PM Sent, thank you!

          Eric McNett
          Seattle AOMCI Member

          March 5, 2019 at 1:46 pm #170375
          Buccaneer
          Participant

            US Member

            Eric, I sent you a PM back

            Prepare to be boarded!

            March 6, 2019 at 11:31 pm #170481
            Eric McNett
            Participant

              So I see the manual says SAE 30 oil, but doesnt say how much oil to add? What is the capacity of this engine, do i fill it up to the bottom of the threads on the fill plug?

              Eric McNett
              Seattle AOMCI Member

              March 7, 2019 at 4:31 am #170491
              jcrigan
              Participant

                US Member

                Yes, up to the fill plug. That would be about 20 ounces. The spark plug would be a Champion J8J or J8C. Plug gap is 0.030″ and points are 0.020″. Use a non detergent oil. Check that manual on how to set the timing. As the points wear on these the timing changes.

                March 7, 2019 at 8:51 am #170501
                Buccaneer
                Participant

                  US Member

                  Timing, in case I didn’t send you that page.

                  timing

                  Prepare to be boarded!

                  March 9, 2019 at 12:36 pm #170666
                  Eric McNett
                  Participant

                    Says i need to remove the cyli der head to correctly check timing, will this be a make my own gasket engine or are they available still?

                    Eric McNett
                    Seattle AOMCI Member

                    July 13, 2020 at 5:09 pm #208518
                    mcclurski
                    Participant

                      US Member

                      I have a couple of these as well. keep me posted

                      jwmcclure

                      July 14, 2020 at 2:49 am #208571
                      jcrigan
                      Participant

                        US Member

                        The later heads on these are 8 bolts. The older motors are 6 bolts. Something to think about when you find a supply of these head gaskets. Have always reused the old head gasket.

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