Champion 849 plug

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  • October 1, 2017 at 4:01 pm #8371
    mercuryman
    Participant

      Has anyone tied these 849 (Cj6) plugs. If you need a short plug they may be the one to use.

      October 1, 2017 at 4:26 pm #65636
      Buccaneer
      Participant

        US Member

        I used some in a 1940 Johnson DT-10, as the spark plug
        cover would ground out the longer plugs when it’s
        installed. Only ran it in a while in a test barrel, but
        seemed okay.
        Am curious if they’re the same heat range in J6C’s?

        Prepare to be boarded!

        October 2, 2017 at 12:19 am #65653
        fisherman6
        Participant

          US Member

          I have a set of 4 of them in my 1949 Zephyr. The longer plugs that were in it were grounding out on the cover. After switching them it seems to be doing fine. I have not run it very much at all, but enough to get it to temperature and idle it down and see that the grounding issue was gone.
          -Ben

          OldJohnnyRude on YouTube

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