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![]() | Home > Duckworth Parts > Fuel filler cap |
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Chuckalicious Member Since: 23 May 2014 Location: Midlothian Posts: 1796 ![]() ![]() |
It is indeed. I will hopefully report back with good news. |
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stevep999 Member Since: 07 Sep 2013 Location: Essex Posts: 198 ![]() ![]() |
New cap fitted today, different coloured inside caping |
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mangching Member Since: 09 Oct 2014 Location: Hong Kong Posts: 10 ![]() ![]() ![]() |
Looking for a Mantec sump guard and tank guard for Fl2 2014. Any one can give a helping hand? |
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stevep999 Member Since: 07 Sep 2013 Location: Essex Posts: 198 ![]() ![]() |
Fitted yesterday, opened today.........no hiss. Will monitor ![]() |
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Chuckalicious Member Since: 23 May 2014 Location: Midlothian Posts: 1796 ![]() ![]() |
Funky. |
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Chuckalicious Member Since: 23 May 2014 Location: Midlothian Posts: 1796 ![]() ![]() |
I should add mine hasn't arrived yet. Will post as soon as it does. |
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D-Man Member Since: 05 Aug 2010 Location: Basingstoke Posts: 277 ![]() ![]() ![]() |
That's exactly what my replacement one looked like back in July and the problem hasn't returned since. 2011 SD4 HSE Auto (Previously 2007 TD4 XS Manual) |
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Chuckalicious Member Since: 23 May 2014 Location: Midlothian Posts: 1796 ![]() ![]() |
I hope those are the ones Duckworths have! |
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Chuckalicious Member Since: 23 May 2014 Location: Midlothian Posts: 1796 ![]() ![]() |
Received mine today. Same as those above so clearly that's the new (and modified?) version.
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Chuckalicious Member Since: 23 May 2014 Location: Midlothian Posts: 1796 ![]() ![]() |
I can confirm that after a 40 mile drive and the new cap fitted, it still sucked in a lot of air upon opening 😓 |
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D-Man Member Since: 05 Aug 2010 Location: Basingstoke Posts: 277 ![]() ![]() ![]() |
Don't know what to suggest |
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Chuckalicious Member Since: 23 May 2014 Location: Midlothian Posts: 1796 ![]() ![]() |
I'm really disappointed to be honest. Really cant be doing with worrying that there might be an underlying issue. Will get it checked when it is serviced next month I guess. |
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D-Man Member Since: 05 Aug 2010 Location: Basingstoke Posts: 277 ![]() ![]() ![]() |
If you've still got the old cap, how about drilling a small hole in it to use as a temporary measure? I suppose there's a non-zero probability the new cap has the same problem but you'd have to be really unlucky! 2011 SD4 HSE Auto
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dorsetfreelander Member Since: 20 Jul 2013 Location: Dorset Posts: 4354 ![]() ![]() ![]() |
As we have two FL2s that do this I had a good look at one of ours and it's basically a pressure/vacuum release valve. I made up a little rig with various diameter tubing and insulation tape and found that if you suck hard enough it will "pop" and let air in. Unfortunately I don't have a vacuum gauge so I don't know how hard I was sucking. However the effective area of the cap is 2.4 sq ins (just measured it) I suppose that if the pressure in the tank was just a couple of psi down then it will take a force of 5lbs to remove it.
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