Home Forum Ask A Member 1952 Johnson 25HP (RD-13) crank seal?

Viewing 10 posts - 11 through 20 (of 29 total)
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  • #77835
    jpatti75
    Participant

      US Member

      10-4!

      Thanks,
      Jason

      #77844
      jpatti75
      Participant

        US Member

        Alright, I was starting to get everything back together tonight, and my brain failed me on the carburetor linkage. How do I properly install these two pieces. The reason I ask, is that the piece on the left is not on my RD-12/13 diagrams, and I don’t see what purpose it serves (I’m not a smart man). I also noticed that I am missing the large linkage spring that connects to the piece on the right. 😕

        #77846
        david-bartlett
        Participant

          Jason,

          I found a picture in the Johnson Service manual that may help.


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          #77848
          jpatti75
          Participant

            US Member

            Thanks, David. I think the diagram is showing that the piece on the left goes on the linkage shaft first. The linkage rod connected to the carburetor gets connected to the top left hole on the piece on the right. If that is right, I still don’t see what role the piece on the left serves? It doesn’t appear to connect to anything?

            #77849
            david-bartlett
            Participant

              I have no idea about the piece on the left. Gotta love changes from year to year.

              #77854
              frankr
              Participant

                US Member

                Recoil starter lockout???

                #77863
                jpatti75
                Participant

                  US Member

                  I’ve been trying to find pictures of powerheads from the time period on the ol’ interwebs. This piece certainly was gone by the time OMC switched to the cam rollers on the linkage in 1955. I’ve seen a couple powerhead pictures that don’t show that piece, just like the diagrams I have for the RD-14/15. I am going to install it in the only way it looks possible to. It doesn’t look like it at all comes into play on the carburetor function, so maybe it is some kind of recoil starter lock out like you suggest, Frank.

                  Does anyone have the part number for the spring that connects the linkage with a small tab on the manifold cover on the RD-13? 303296?

                  Thanks,
                  Jason

                  #77864
                  frankr
                  Participant

                    US Member

                    Closest thing I have is RD-14, shows a spring #303296

                    #77865
                    jpatti75
                    Participant

                      US Member

                      Thanks, Frank!

                      #78408
                      jpatti75
                      Participant

                        US Member

                        Just wanted to say a word of thanks to David Bartlett, Frank, and Ed Elliott for the help and parts for my RD-13. I went into this job thinking it needed the crankshaft seal and a coil, but of course it also needed new condensers, points (it had misaligned Sierra points), ignition cam, one spark plug boot, and carburetor linkage spring. Nothing major, but not the runner it was advertised to be (are they ever!). I ran it on my flushette today, and after a few pulls it fired up and ran very well. I got the carburetor pretty close and hope to get the boat wet next weekend to do the fine tuning.

                        Thanks for the help, gents!
                        JP

                      Viewing 10 posts - 11 through 20 (of 29 total)
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