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winged petrol cap
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Topic: winged petrol cap (Read 677 times)
frogeye1000
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Join Date: Nov 2023
Posts: 6
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winged petrol cap
«
on:
25.05. 2024 16:20 »
just a quick question, do the winged fuel caps have a rubber or cork seal. i have an indian tank and cap, but can't see how it would seal without one.
cheers
Richard.
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62 SR
muskrat
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Join Date: Jul 2009
Posts: 10954
Karma: 131
Lithgow NSW Oz
Re: winged petrol cap
«
Reply #1 on:
25.05. 2024 20:21 »
G'day frogy.
I can't imagine it would work (seal) without one. Over the years I've made my own out of 1/16" rubber or cork. The cork worked best but only lasted a few years before a new one was needed.
Is your cap hinged?
https://www.britishmotorcycle.com.au/store/bsa/fuel-tank-cap-alloy-wing-nut/
https://www.classicbikespares.com.au/product/petrol-cap-seal-2-1-2-flip-up/
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'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7
limeyrob
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Join Date: Nov 2023
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Re: winged petrol cap
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Reply #2 on:
25.05. 2024 22:44 »
Cork. Don't try making a rubber one, I did and it swole up and jammed the cap solid.
Cork seals for std caps are cheap and may fit, If not I think the OD is OK but the ID may need trimming.
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Slough 59 GF/SR
Rex
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Join Date: Apr 2017
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Re: winged petrol cap
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Reply #3 on:
26.05. 2024 08:40 »
Funnily enough I made a cork one for my pre-war Red Hunter and the cork crinkled up in a week. Someone recommended some sort of synthetic rubber sheet off Ebay and it's still going strong.
Modern juice seems to attack some stuff and not others.
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MikPowl
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Join Date: Feb 2014
Posts: 64
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Re: winged petrol cap
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Reply #4 on:
26.05. 2024 10:25 »
Search: Fuel Proof Rubber Sheet in Ebay - plenty of stuff of various thicknessses to choose from
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limeyrob
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Join Date: Nov 2023
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Re: winged petrol cap
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Reply #5 on:
26.05. 2024 11:22 »
Makes sense, i think I used the rubber that was not ethanol proof. So only get the new stuff.
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Slough 59 GF/SR
frogeye1000
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Re: winged petrol cap
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Reply #6 on:
26.05. 2024 11:50 »
thanks for replies. i have some sheet cork, and neoprene. i'll have a go at making one. Seems most of the ones on ebay appear not to have a seal in them.
rich.
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The BSA A7-A10 Forum
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Technical (Descriptive Topic Titles - Stay on Topic)
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winged petrol cap