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shaggydog



Member Since: 12 Aug 2012
Location: Kent
Posts: 3347
United Kingdom 1991 Defender 110 200 Tdi USW Arles Blue
Fuel cap leak
Hi all.

Any ideas how to solve this?

I haven't overfilled it and I'm keen to get it fixed as it's a big risk to other road users and my fuel account.

Is it just a case of new cap or does it just need a rebuild kit.



Click image to enlarge Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197

Self confessed mileage hunter Very Happy
Post #941644 8th Feb 2022 2:11pm
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Ramsay



Member Since: 30 Sep 2015
Location: Moffat, Dumfries & Galloway
Posts: 627
Scotland 1995 Defender 110 300 Tdi CSW Auto Keswick Green
Mine was not leaking that badly. Replaced cap and it has been fine.
Old cap was disassembled. It has a rubber coated disc spring to provide the sealing. If this has worn coating or spring temper was poor it will leak. I can’t see a meaningful repair. Bending disc spring will work for a while but would make the temper worse. 1995 Defender 110 CSW
1971 SIIA Lightweight
Post #941646 8th Feb 2022 2:30pm
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Danny Fireblade



Member Since: 16 Mar 2018
Location: Hampshire
Posts: 319
United Kingdom 1998 Defender 110 300 Tdi HT Alpine White
I've been through about 3 different sellers in trying to find one that actually seals the cap so it keeps the fuel in, still not found one that does the job yet as every one has leaked.

If anyone has any suggestions I would love to hear them.
Post #941655 8th Feb 2022 3:51pm
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shaggydog



Member Since: 12 Aug 2012
Location: Kent
Posts: 3347
United Kingdom 1991 Defender 110 200 Tdi USW Arles Blue
Humm sounds like a new one is required.

Will update with findings.

Many thanks Thumbs Up Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197

Self confessed mileage hunter Very Happy
Post #941799 9th Feb 2022 4:01pm
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L110CDL



Member Since: 31 Oct 2015
Location: Devon
Posts: 10784
England 
My old fuel caps leaked and i got one from ebay and that did the job, no leaks, then optimall fuel cap came out for the Tdi and i got one, that leaked on the second fill up, so i went back to the one i bought and it has not leaked once in all the time i have had it, i don't fill it up to the brim, i always leave a space




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I would prefer an original one but this cap does the job nicely Very Happy 1996 Golf Blue 300Tdi 110 Pick up.

Keeper.

Clayton.
Post #941867 9th Feb 2022 10:04pm
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