Reply To: 1929 Johnson Model J-25 Plug Wire

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May 4, 2022 at 10:33 am #259406
davidk
Participant

    US Member

    Also consider the surface of the cam.  No sense in rebuilding the piston if a corroded cam will just chew it away.  See this discussion https://www.aomci.org/forums/topic/early-johnson-plunger-for-pump/