Author [NL] [FR] [ES] [DE] [SE] [IT] Topic: Dripping Fuel  (Read 2187 times)

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  • Offline iowabikerider   us

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    Offline iowabikerider

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    • Bike: 2017 Triumph Trophy
    • City / Town: Clive, Iowa
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    Dripping Fuel
    on: Jan 11, 2019, 01.17 am
    Jan 11, 2019, 01.17 am
    So, I parked my Triumph in the garage a few weeks ago and noticed a small puddle of gas under it.  Wiped it up and it happened again a few days ago.  Brought it back to the dealer and they discovered that the factory had not put a gas tank seal between the tank and (I assume) the petcock.  Very strange because I have ridden the bike over 18000 miles with no issues.  The dealer was amazed as well.

    Good news is that the factory warranty worked and all has been fixed.

  • Offline earthman   gb

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    Re: Dripping Fuel
    Reply #1 on: Jan 11, 2019, 06.35 am
    Jan 11, 2019, 06.35 am
    Hmm, I wonder if it were more the case of the fuel line bolt not being tight enough, maybe the leak developed from there?
    Surely not having that rubber gasket in place would result in a big leak straight away,...when I bought a new one the parts guy said that the guys in the workshop just reuse the old one!

  • Online Coconut   gb

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    Online Coconut

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    Re: Dripping Fuel
    Reply #2 on: Jan 11, 2019, 08.12 am
    Jan 11, 2019, 08.12 am
    I'd go back and ask them exactly where the missing Gasket / Seal was.

    The Trophy doesn't have a "petcock".

    Last Edit: Jan 29, 2020, 07.14 pm by Coconut

  • Offline iowabikerider   us

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    Offline iowabikerider

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    Re: Dripping Fuel
    Reply #3 on: Jan 12, 2019, 12.49 am
    Jan 12, 2019, 12.49 am
    The local Triumph dealer said the gasket that should have been present under the tank was missing, causing the fuel leak.

    When I used the term "petcock" it was meant to describe whatever fuel fitting is beneath the tank

  • Online Coconut   gb

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    Online Coconut

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    Re: Dripping Fuel
    Reply #4 on: Jan 12, 2019, 08.07 am
    Jan 12, 2019, 08.07 am
    Ah, I see -

    This is a "Petcock" ( Petrol "cock", or Petrol "Tap" ) :



    .... fitted to most motorcycle engines with Carburettors,
    but not to Fuel Injected engines such as on the Trophy.

    Next time you speak to the Dealer it would be really useful to know exactly which Gasket
    or Seal was missing ( they should be able to provide a Part Number ),
    as this may help other Members if they suffer a similar fuel leak in the future.  :169:

    Cheers  :821:

    Last Edit: Jan 29, 2020, 07.10 pm by Coconut

  • Offline Ernest T   us

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    Offline Ernest T

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    Re: Dripping Fuel
    Reply #5 on: Jan 12, 2019, 05.02 pm
    Jan 12, 2019, 05.02 pm
    There is a gasket under the plate that mounts the electrical connection and the fuel supply hose. The fuel supply hose uses a banjo fitting which has two sealing washers just like a brake fitting. I think it would leak like a sieve if that gasket was missing. It's more likely the banjo fitting wasn't tight enough. 

  • Offline iowabikerider   us

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    Offline iowabikerider

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    Re: Dripping Fuel
    Reply #6 on: Jan 12, 2019, 05.17 pm
    Jan 12, 2019, 05.17 pm
    The Triumph mechanic said the gasket was completely missing which had them wondering why it hadn't leaked earlier on

  • Offline Ernest T   us

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    Offline Ernest T

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    Re: Dripping Fuel
    Reply #7 on: Jan 12, 2019, 06.04 pm
    Jan 12, 2019, 06.04 pm
    I would wonder tooo.  That gasket is rectangular shaped and about 6" long by 3" wide and mates a metal plate with the plastic tank.  It should have leaked from the start.