Author [NL] [FR] [ES] [DE] [SE] [IT] Topic: Fuel Filler Cap.  (Read 2936 times)

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  • Offline RocketSteve   gb

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    Offline RocketSteve

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    Fuel Filler Cap.
    on: Jun 19, 2017, 07.07 pm
    Jun 19, 2017, 07.07 pm
    I've decided to sell my Rocket 3 and keep the TTSE so this morning was spent re-installing the Sat Nav etc. - which some of you know is a very time consuming activity.

    Well, a long story cut short is we had a ride into Cornwall this afternoon to check all is working in the 32 deg heat and had a great time :062:

    Now this is a 1st for me, I've just noticed the glove box was standing VERY high so I took off the 2 screws to see why and I couldn't get it back down into position  :233:

    So, I flipped up the fuel filler cap and it opened with quite a bang, the 2 pressure relieve pin holes are possibly blocked so I'll need to push some wire in to clear them tomorrow!

    Never had that problem before...

    To test a man's character, give him (horse) power.

  • Offline silverstripes   gb

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    Offline silverstripes

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    Re: Fuel Filler Cap.
    Reply #1 on: Jun 19, 2017, 07.10 pm
    Jun 19, 2017, 07.10 pm
    Keeping the TT well done that man  :152:

    Just need to change you username when the Rocket is no more   :164:

    How' the Boss going  :156:
    It wasn't me !!

  • Offline Coconut   gb

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    Offline Coconut

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    Re: Fuel Filler Cap.
    Reply #2 on: Jun 19, 2017, 07.34 pm
    Jun 19, 2017, 07.34 pm
    Hi RocketSteve,

    Excellent News that you're not leaving us !  :152:

    Glove Box : Remember that the Glove Box LOCKS when the Ignition is OFF,
    so try turning the Ignition Back ON, and see if the lid will close "properly" again.

    BE AWARE that if something is wrong with the locking Solenoid,
    you need to be able to Open the Glove box lid, to get at the Internal screw,
    to remove the complete Glove Box and access the Solenoid !

    It's best to carry out Testing after removing the Glove box,
    to ensure the lid doesn't get closed, and stay closed,
    meaning you can't get at the screw to remove it, if,
    for example the Solenoid wiring plug has become disconnected !  :157:

    Fuel Tank : I've not heard of that issue with the fuel tank before -
    It definitely sounds like a "breathing" problem.

    I would think it's most likely that the breather tubes have become blocked,
    or trapped if, for example the Tank has been off, or work has been done in that area recently ?

    ( See Items 23 - Upper Tank Vent Hose & 26 - Lower Tank Vent Hose, in the attached image ).

    Cheers  :821:

    Last Edit: Apr 25, 2020, 05.36 pm by Coconut

  • Offline RocketSteve   gb

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    Offline RocketSteve

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    Re: Fuel Filler Cap.
    Reply #3 on: Jun 19, 2017, 07.52 pm
    Jun 19, 2017, 07.52 pm
    Yep we're good to go Coconut :038:

    I pushed a 1 mm twist drill in & out of those tiny breather holes and they were both properly blocked with white alum powder [oxide] which isn't a real surprise seeing she's not been ridden since last October!
    Riding this bike now is such a forgotten pleasure. :001:

    The 4 springs inside the filler cap were also showing a bit of corrosion but gentle wire brushing & WD keeps those working well.

    We're off to Monkey World near Bovington Dorset tomorrow so lets see what heat & pressure we get... :156:
    To test a man's character, give him (horse) power.

  • Offline RocketSteve   gb

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    Offline RocketSteve

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    Re: Fuel Filler Cap.
    Reply #4 on: Jun 19, 2017, 08.02 pm
    Jun 19, 2017, 08.02 pm
    Hi Adrian,
    I've been granted "Rocket 3 Honorary Membership" due to tours etc. I've organised over that last 13 years in North Devon so the name will stay - along with the 'R3 SVE' number plate that I'm moving from the R3 to my TTSE :001:

    Boss is great, won Best in Show last month which puts another two zeros on the value! :745:

    http://bidefordbikeshow.org/bbs-2017/
    Last Edit: Jun 19, 2017, 08.21 pm by RocketSteve
    To test a man's character, give him (horse) power.

  • Offline RocketSteve   gb

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    Offline RocketSteve

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    Re: Fuel Filler Cap.
    Reply #5 on: Jun 22, 2017, 12.34 pm
    Jun 22, 2017, 12.34 pm
    Finally found the problem with pressure build up in the fuel tank, if you raise the fuel cap and look to the right lower side there's a small pinky/red grommet which seals against the filler cap when closed and I think it's this thing that transfers the pressure out to ambient.

    So to check it's working I placed a rubber pipe over the grommet and sucked then blew but no air moved.
    I tried placing a feeler in the slot underneath the grommet but it wouldn't go, the hole in the middle of the grommet was clear and it's free to move around but not free to pull out so I made a small nick in one side of the grommet - not had any pressure build up since. :028:

    It's very over-complicated for what it does. :087:
    To test a man's character, give him (horse) power.

  • Offline Travelling2bob   au

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    Offline Travelling2bob

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    Re: Fuel Filler Cap.
    Reply #6 on: Jun 23, 2017, 02.41 am
    Jun 23, 2017, 02.41 am
    G'day Rocket Steve,

    Interesting problem and certainly one I have not experienced, noting I live inland and not exposed to a corrosive environment.

    Regarding +30C days that's normal Spring and Autumn temperatures here (Summer days high 30-40C here). No issue with fuel vapour build up (although I'll check breathers).

    Wherever you go, there you are.
    Triumph Trophy SE
    Triumph Thunderbird 1600
    Triumph Sprint ST
    Ducati ST3

  • Offline RocketSteve   gb

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    Offline RocketSteve

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    Re: Fuel Filler Cap.
    Reply #7 on: Jun 23, 2017, 12.38 pm
    Jun 23, 2017, 12.38 pm
    Hi Bob,
    it doesn't make any sense, I've not ridden the bike since last October when the bike dealer that sold me the TTSE gave it the 10k service - and I've only now found some damage to plastic parts that are normally out of sight, they took the bike back to attempt the harness fix around the headstock last October and I imagine they've screwed up something in this area in the process as I complained like hell with them and also told Triumph that this is the last of their bikes I'll buy ~ that includes anything more from this crap dealer.

    Pressure has stopped building up now so the fix seems to work.
    To test a man's character, give him (horse) power.

     



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