Home Forum Ask A Member 1928 Johnson "race" motor

Viewing 9 posts - 41 through 49 (of 49 total)
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  • #70199
    49morphew
    Participant

      US Member

      Beautiful rig George! Very nicely done.

      #70275
      Anonymous

        So what should compression be on this motor?

        #70279
        Anonymous

          So I went to look at the motor today and it looks to be pretty decent. Tanks dented as can be expected and the serial number on the case matches the sheave. I was going to check compression but the plug is what I’ll call a standard size auto plug and my compression tester was too small. I turned the motor over with the flywheel and my non-expert impression is that the compression is low. I also pulled the plugs and put my thumb over the holes while someone pulled it over and again I felt that it might not be up to where it should be. However I was told by my friends friend that the owner did have it running. For comparison there was a ’45 Neptune 15B4 there that seemed to have better compression when I rotated the flywheel.

          I asked him what he wanted and he said make an offer. Again he brought up the motor that sold for close to $800 which was in Florida. I told him that motors on the east coast or up north can bring more money since the collector base is higher than in Nebraska. I feel this is a valid statement and he accepted it. I got the impression that the owner is thinking in the area of $500 but don’t take this to the bank.

          So, here are some pics that I took for your viewing pleasure.

          Kirk




          #70280
          Anonymous

            Round two



            #70281
            Anonymous

              Round 3



              #70282
              chris-p
              Participant

                Tank is rough and had some amateur restoration work done, but I think that can be repaired. Its clean.. …Neat motor.

                #185650
                Alan Andress
                Participant

                  I have a 1928 PR-40 rated at 16.5 hp that I am restoring now.

                  #185669
                  squierka39
                  Participant

                    US Member

                    All the pictures seem to be gone, I wonder if the original poster got the motor?

                    #185675
                    IAN
                    Participant

                      From what little I know, I understand that the KR40 has needle bearing in the powerhead and the regular K40 does not.

                    Viewing 9 posts - 41 through 49 (of 49 total)
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