Home Forums General Technical Help No throttle response

  • This topic has 13 replies, 7 voices, and was last updated by Jason105e.
Viewing 14 posts - 1 through 14 (of 14 total)
  • Author
    Posts
  • #12533
    Anonymous

      I am experiencing extreme :cry: difficulties getting my 1200 Estate to run properly.

      It will start and ticks over very roughly, but does not respond to the throttle pedal at all, and cuts out after about 30 seconds.

      I have checked and cleaned plugs and points, plug leads are connected correctly, I’ve drained the fuel tank in case petrol was stale and filled with fresh, replaced the fuel filter, and even changed the carb for another, but still no joy :shock:

      I’m beginning to suspect an electrical gremlin, perhaps a faulty coil, unless anyone has any other suggestions. Haven’t used the car for a while, but was running fine when I last used it.

      Looking doubtful for National Day unless I can sort it soon :cry: :cry: :cry:

      #24026
      JAN
      Participant

        The throttle linkage is all still connected, I assume?

        #24027
        Ken B
        Moderator
          Club Member

          I take it you’ve steady flow of fuel on cranking over to carb, carb is perfectly clean in the jets/openings. When modern fuel dries out it gums. Trust me I know from lawn mowers strimmers and boys quad.

          #24028
          Anonymous

            Yes, fuel pump is new and fuel is getting to carb okay. Linkage is connected, but whether trying to rev engine with accelerator pedal or by hand with linkage, engine seems to choke itself and die. Seems very strange to have same symptoms with two different carbs, the one I have on now is straight off James’s saloon which is running fine :?: :roll:

            #24029
            JAN
            Participant

              Then it sounds like there’s insufficient fuel being delivered. Disconnect the delivery pipe at the carburettor and spin the engine over; you should get healthy spurts of ‘solid’ fuel. If you don’t, you have either a blockage, a weak pump or air being drawn into the system.

              #24033
              Jason105e
              Participant
                Club Member

                Malcolm, Give me a shout if you want me to pop over and take a look mate.

                #24037
                Anonymous

                  Thanks Jason,

                  Real head scratcher this one. Plenty of fuel getting up to carb, but ticks over roughly, even when on full throttle :oops:

                  #24039
                  tom1946
                  Participant

                    Sounds like the main jet’s blocked?

                    #24044
                    paddi
                    Participant
                      Club Member

                      Unlikely to be the main jet ‘cos they’ve already tried another carb that works fine on another car. Possibly coil or condenser that’s breaking down under load?
                      Still sounds like a timing issue to me though….
                      It will be interesting to see the verdict once Dr. Barnes has visited! Keep us posted!

                      #24046
                      Jason105e
                      Participant
                        Club Member

                        Don’t hold your breath…..

                        #24050
                        Andrew
                        Participant
                          Club Member

                          I know it’s a long shot, but I had a similar problem last year, traced it to a faulty radio suppressor, once that was disconnected it ran fine. (Don’t ask me why!)

                          Andrew

                          #24051
                          Jason105e
                          Participant
                            Club Member

                            Problem sorted. After running through just about everythign for 2 hours, we decided to check the new condenser…… and yes, it was the cause of the problem. Now running perfectly. Needless to say that endless cups of tea and cakes were consumed whilst under taking this long saga (the longer we took, the more tea and cakes Jane brought out to us) :wink:

                            #24053
                            Anonymous

                              Yes, after a kind visit from Mr Barnes the Anglia Doctor, the problem was finally traced to the aforementioned faulty condensor. :oops:
                              After some fine adjustments she’s now running sweetly. :D
                              Many thanks for your help Jason.

                              #24059
                              Jason105e
                              Participant
                                Club Member

                                Pleasure mate, glad it’s sorted and ready for the weekend!

                              Viewing 14 posts - 1 through 14 (of 14 total)
                              • You must be logged in to reply to this topic.