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    misfire

    Hi guys
    still have a dam misfire on tick over and if i rev her up to about 2500 revs there is a misfire every second or so, can it be a tight tappet.
    Thanks
    vince
    Last edited by Guest; 12 May 2013, 21:12.

    #2
    Apparently a vacuum gauge can show if thats the problem.

    Comment


      #3
      O do tell where and how that works chris, the only other thing i havn't done yet is the dizzy, have you got any.
      vince

      Comment


        #4
        I had this problem a few years ago on one of my engines, must have been in the TR come to think of it, took months to find it.
        I never thought of a vaccuum gauge, swapped all the injection and ignition parts twice, turned out to be a sticking bucket on one of the inlet valves,they were all new, swapped it for the slightly worn one that came out and the problem went away.
        Frustrated the hell out of me, the bucket measured ok, must be something to do with the head.
        Neil
        Neil
        TV8, efi, fast road cams and home built manifolds. 246bhp 220lbft torque

        Comment


          #5
          Thanks neil, apart from the dizzy ive tried everything else, i did see something in old posts about tappets and misfires, can't find it now.
          Yes driving me nuts now
          vince

          Comment


            #6
            Chopper blade in the distributor has a nick in it. Was the cause of my misfire...

            Comment


              #7
              Yes a nick in your chopper can cause that.

              Comment


                #8
                Hi Vince, have you got one of those little devices that show if a plug is firing ? fits between the plug and the HT lead, try that on each plug in turn and watch for a missing spark, then change the offending plug and/or lead. I'm always in favour of trying cheap and easy first. If the plugs are new, that means nothing, I've come across loads of faulty new ones over the years. Martin.

                Comment


                  #9
                  Originally posted by KOY 23 View Post
                  Yes a nick in your chopper can cause that.


                  OOH John, how could you ?

                  Comment


                    #10
                    Ok Martin ill get one and try it first
                    thanks
                    vince

                    Comment


                      #11
                      Originally posted by Richard Saunders View Post
                      Chopper blade in the distributor has a nick in it. Was the cause of my misfire...
                      Richard
                      Have put a new elecky ignition on and still the same
                      vince

                      Comment


                        #12
                        Originally posted by KOY 23 View Post
                        Yes a nick in your chopper can cause that.
                        Alison said how do you know that

                        Comment


                          #13
                          Martin how does that thingy show if the plug is faulty if its put between the ht lead and plug
                          vince

                          Comment


                            #14
                            Originally posted by bunny View Post
                            Alison said how do you know that
                            Met you at Stoneleigh

                            Comment


                              #15
                              Are you sure it wasn't devils dyke he he

                              Comment

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