Triumph Thunderbird Sport Ignition Coil Failure?

Discussion in 'Technical Help' started by Sami.I, Jun 5, 2019.

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  1. Sami.I

    Sami.I New Member

    Jun 5, 2019
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    Finland
    #21 Sami.I, Jun 15, 2019
    Last edited: Jun 15, 2019
    https://m.imgur.com/gallery/QFBZHTO[​IMG]

    Problem solved! Thanks everyone for the tips. Problem was the ignition coils. Just changed all three and problem gone! I bought three PVL copy coils from Sprint Manufacturing. First i was little suspicious, but i got this e-mail from them:
    "
    We have sold several hundred of these Taiwanese coils (single and twin outlet) and only very recently had a failure on x 1 single (USA) and x 1 twin (Sweden). I don’t think the PVL coils are any better than this, but they were original equipment on Triumph at one time. All types in stock so choice is down to you.

    Regards,

    Trev."

    I did small ride and everything looking good. Idle is nice with warm engine. So if you own hinckley 3 cylinder and these symptoms sound familiar, you know what to do.
     
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  2. t552

    t552 Senior Member

    Nov 17, 2014
    416
    113
    Bristol UK
    #22 t552, Jun 17, 2019
    Last edited: Jun 17, 2019
    I make pecil coil coversion kits for t3 models. Plug and play inc looms.
    Only 12v into plug cap/coil, no plug leads.

    received_323321165270113.jpeg

    received_621659781578971.jpeg
     
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  3. freck

    freck Elite Member

    May 4, 2017
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    Preston, Lancs, UK
    #23 freck, Jun 17, 2019
    Ooh I like that. :grinning: How much?
     
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  4. t552

    t552 Senior Member

    Nov 17, 2014
    416
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    Bristol UK
    #24 t552, Jun 17, 2019
    Pm sent. Thanks for asking.
     
  5. dirty big hands

    dirty big hands Active Member

    Aug 4, 2017
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    sussex
    #25 dirty big hands, Jun 17, 2019
  6. Callumity

    Callumity Elite Member

    Feb 25, 2017
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    Nr Biggar
    #26 Callumity, Jun 17, 2019
    Only just seen this but the OP described classic Gill ignition coil failure. You get a low speed misfire (less than 2-2,500 rpm) spit on one cylinder and it can be hard to detect which - especially with balance pipes. It then gets progressively worse if you are slow to suss the culprit.
    The very fine wire in the coil breaks and loses continuity as it expands with heat. At higher revs and marginally higher voltage it jumps the gap just as it does in the spark plug.
     
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  7. t552

    t552 Senior Member

    Nov 17, 2014
    416
    113
    Bristol UK
    #27 t552, Jun 17, 2019
    Pm sent
     
  8. dirty big hands

    dirty big hands Active Member

    Aug 4, 2017
    184
    43
    sussex
    #28 dirty big hands, Jul 6, 2019
    Hi Sami.l

    How are you finding the new coils from Sprint manufacturing?
    I think it's time I replaced mine, not so much because of idle issues (although low revs can be lumpy at times), but because the tacho is reading wrong.
    Did they solve that problem for you?
    I'm sure I read somewhere that the rev counter gets its reading from one of the coils......
     
  9. sprintdave

    sprintdave Nurse,he's out of bed again
    Subscriber

    May 25, 2014
    1,533
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    Birmingham
    #29 sprintdave, Jul 6, 2019
    It does. I believe from number 1 cylinder.
     
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  10. Robert Leigh

    Robert Leigh New Member

    Jun 18, 2018
    16
    3
    Newmarket, Suffolk, UK
    #30 Robert Leigh, Jul 31, 2019
    Exactly the same symptoms on my 2003 Thunderbird 900. I swapped the Gill coils for PVL and its run perfectly for the last 3 years
     
  11. Robert Leigh

    Robert Leigh New Member

    Jun 18, 2018
    16
    3
    Newmarket, Suffolk, UK
    #31 Robert Leigh, Jul 31, 2019
    Exactly the same symptoms on my 2003 Thunderbird 900. I swapped the Gill coils for PVL and its run perfectly for the last 3 years
     
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