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Co1



Member Since: 19 Aug 2018
Location: North Yorkshire
Posts: 2556

United Kingdom 2013 Defender 90 Puma 2.2 HT Loire Blue
Optimill fuel cap lock seizing.

Went for diesel yesterday and couldn’t get in! The lock had seized solid. Quick squirt of WD when I got to work freed it up, but I noticed that it does seem to hold a lot of water. Has anyone else found this, and also what is the collective recommendation for lubricating/protecting the lock from seizing? ACF50 or a silicon spray grease be ok? Instagram @richmond_custom

Last edited by Co1 on 14th Jan 2022 8:05am. Edited 1 time in total

Post #937658 14th Jan 2022 6:04am
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 4798

2006 Defender 110 Td5 USW Zermatt Silver

I don’t know what I would advise but certainly not wd40 as can make some plastic items swell. If a lock then graphite lub is recommended.

Post #937662 14th Jan 2022 7:17am
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The Zee



Member Since: 26 May 2019
Location: Salisbury
Posts: 100

United Kingdom 2014 Defender 110 Puma 2.2 USW Indus Silver

I use is ABUS PS88 Lubricating Spray, it’s a 50ml spay with a small tube to direct into the lock, after a small squirt, open and close using the key, until smooth, and then follow up with a second squirt.

Just another thing to do before winter frosts happen.
https://www.defender2.net/forum/topic81855.html Zaid-M
www.DefencePhotos.com
2014 Defender 110 Utility, 2.2 Puma, Indus Silver
Not just transport more like a religion

Post #937674 14th Jan 2022 10:11am
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Smyles_



Member Since: 25 Aug 2018
Location: Newcastle & Stirling
Posts: 425

Scotland 2008 Defender 130 Puma 2.4 HCPU Cairns Blue

Can't say I ever had that issue with mine over the 2 years whilst in wet central Scotland.

Never lubricated either, but maybe my frequent visits to fuel stations kept it in working order Question Stuart

Cummins 130 Build Thread
Instagram

04 110 Double Cab - Black (gone)
58 130 Double Cab HCPU - Cairns Blue

Post #937676 14th Jan 2022 10:35am
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ChrisDefender



Member Since: 29 Oct 2015
Location: Midlands
Posts: 353

United Kingdom 

A while back my standard LR fuel cap competely corroded, tried to open it and the lock had all but rusted away inside. After a faff getting it off I replaced with a geuine one. Ever since just to be sure I have pushed a small amount of ACF50 into the lock every couple of months to hopefuly keep the lock free from rust.

Key always seems to go in well.

Post #937688 14th Jan 2022 11:35am
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hank



Member Since: 12 Sep 2016
Location: South Wales
Posts: 1844

Wales 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

Had my optimill one for years and haven't noticed anything untoward. > 110 XS Double Cab
> Instagram @simonlanemind

Post #937692 14th Jan 2022 12:59pm
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BaronDefenders



Member Since: 28 Jun 2019
Location: London/Cotswolds
Posts: 395

United Kingdom 2004 Defender 90 Td5 CSW Santorini Black

I haven’t had any issues with my Optimill or old genuine cap. I’d personally just put a drop of ACF50 in and work the key in the lock a few times. Repeat now and again. Charlie

2002 Td5 90 (SOLD)
2008 Freelander 2 (SOLD)

1949 Series 1 80 (Ex-Ministry of Supply)
1958 Series 2 88 (2019 LR Legends Best Restored)
2004 Td5 90 (Td5INSIDE Powered & Rebuilt by CSK)
2012 Puma 110 (Overlanding Project)

Instagram: @BaronDefenders

Post #937698 14th Jan 2022 1:33pm
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Roy5695



Member Since: 15 Feb 2014
Location: Cornwall
Posts: 1100

United Kingdom 2011 Defender 110 Puma 2.2 XS DCPU Indus Silver

I never lock mine so wouldn’t know 😬

I’d rather they siphoned the diesel out than drill a hole in the tank. 😂 2011 Defender DCPU 2.2 - https://www.defender2.net/forum/topic30623.html

Instagram - @r22oyp

Roy

Post #937760 14th Jan 2022 7:51pm
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Co1



Member Since: 19 Aug 2018
Location: North Yorkshire
Posts: 2556

United Kingdom 2013 Defender 90 Puma 2.2 HT Loire Blue

That’s a very good point. Instagram @richmond_custom

Post #937762 14th Jan 2022 8:01pm
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