1956 Johnson rje-18-c 30hp

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  • September 19, 2018 at 2:41 am #11267
    clemg
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      US Member

      I’m looking for bore, piston and ring gap measurements.
      I have some rust on both cylinders and the middle part of the crank where the half bearing is. I hope a machine shop could help my problem. I want to give the as much info as I can. Any help would be great!!
      Clemg

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      September 19, 2018 at 4:26 am #83158
      garry-in-michigan
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        Lifetime Member

        This is what I have . . . 😎

        September 19, 2018 at 11:35 am #83160
        frankr
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          US Member

          Looks like the rust on the crank is in the Labrynth seal area. I guess it is debatable whether or not it will cause significant blowby leakage.

          Note: the pistons’ .0025" -.004" clearance is measured at the skirt. There is quite a taper to them.

          September 19, 2018 at 9:17 pm #83204
          clemg
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            US Member

            Thanks for the help

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