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Miss-fire on acceleration - Update from earlier post

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    Miss-fire on acceleration - Update from earlier post

    Having endured this intermittent misfire I tried another 3 things but all at the same time so stupidly don't now know which one it was!

    Replaced the rotor arm for the new red one supplied with the Powerspark replacement kit I bought, this was in place of one of the green ones I originally bought from LD

    Swapped the magnetic trigger unit back for the old one (having already checked the magnets in both and they are of identical hold)

    Weakend the mixture on the carbs by one flat each, even though I tried this before and it/made no difference to the miss fire either weaker or richer.

    I think it must be the rotor arm as it's the only thing I'd not changed before but I'm reluctant to put back the green one and adjust the mixture again in case I get back to where I was but the engine is running much smoother now and not missing at all, pulls as it used to in O/d top from 700rpm without a problem.

    Happy Days!
    Mike

    #2
    If it ain’t broke don’t fix it!!

    Comment


      #3
      Always been my best plan
      Mike

      Comment


        #4
        The best rotor arms seem to be original Lucas!

        Theres a few on eBay, usually ex military Land Rover.

        the modern ignitors have an Unnecessary shoulder which has to be removed (to the rotor arm diameter at least) to use an original rotor arm (the red ones are shallower)

        Richard the stag did a YouTube on this…. Is it church house classics?


        Last edited by jbuckl; 3 June 2024, 21:18.

        Comment


          #5
          Originally posted by jbuckl View Post

          the cheap modern ignitors have an Unnecessary shoulder which has to be removed (to the rotor arm diameter at least) to use an original rotor arm (the red ones are shallower)
          Not Pertronix.
          Dave
          1974 Mk2, ZF Auto, 3.45 Diff, Datsun Driveshafts. Stag owner/maintainer since 1989.

          Comment

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