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Misfiring when hot

Discussion in 'Series Land Rovers' started by IHMS, Mar 9, 2010.

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  1. IHMS

    IHMS New Member

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    Hi everyone...I have a Series 2A 2.25 petrol that misfires when hot. We rebuilt the distributor a few days ago...reset the points, checked everything...cleaned it all up pretty and it run like a stallion for 2 days...now she is back to her old ways. Cap is new, points are new, condenser is new and wires are new. Could it be the coil? While using the existing negative earth points/condenser...can I use a new non ballast 12v coil? Could it be a relay switch? Let me know what you think, thanks alot,
    Mark
     
  2. dr pepper

    dr pepper New Member

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    Hi Mark, I replied to your pm, might be worth you copying and pasting it here on the thread, there are a few of us with good knowledge of ignition systems, that said elastictrickery faults are the worst kind.

    If its a ballast resistor type coil then yes you could convert to a standard one, allthough you'd need to do a bit or wiring, maybe I'm wrong but I thought ballasted coils were popular in colder countries to give the engine a better chance of firing, still your truck could have come from anywhere I spose.
     
    Last edited: Mar 9, 2010
  3. Steve Ashworth

    Steve Ashworth Active Member

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    I had similar problem. It wasn't electrics - turned out to be carburettor that needed a service. Been perfect ever since.

    Steve
     
  4. IHMS

    IHMS New Member

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    Steve...I am not sure where you are located...but do you ever have issues with the carb getting hot? as it is located over the exhaust manifold? Mine only does this when it is hot...never cold. Was yours the same way?
    Thanks,
    Mark
     
  5. Steve Ashworth

    Steve Ashworth Active Member

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    Mine used to be fine when cold but after running for a while it would just stop for no obvious reason. It would not start again untill engine cooled down. It wasnt the carb that was overheating; just that the engine was hot.
    I tested all the electrics which proved to be fine but still would not start.
    I decided that if not electrical it was probebly fuel related. I got a carburettor service kit (gaskets, diaphragm and needle and float valve etc) stripped it cleaned it with air jet rebuilt and fitted. Its been perfect ever since.. Dont understand why but hey - fixed!
     
  6. bevhelee

    bevhelee Well-Known Member

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    used to have the same with a mini, the fuel was getting too hot in the float, fitted a heat shield and hey presto end of problem.
     
  7. Exmunster

    Exmunster Member

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    MISFIRING WHEN HOT - V8
    ..... any ideas please?
     
  8. The Mad Hat Man

    The Mad Hat Man Well-Known Member LZIR Despatch Agent

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    YES




    a) dont shout
    b) dont let it get hot
     
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