Water Filler Cap (1 Viewer)

Sep 15, 2009
1,978
4,798
Sussex coast
Funster No
8,475
MH
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Exp
learning
My water filler cap has always been fiddly and awkward but now I can't get it to lock. The key turns but it makes no difference whatever position keys in I can open it. Are these caps all the same anyone fixed one ? Is it worth replacing ?

Its this one in picture any idea where to source another the same ? Thanks
IMG_20150517_122623.jpg
 
Feb 24, 2013
13,148
101,692
Bolsover, Derbyshire
Funster No
24,833
MH
Hymer S800
Exp
not long enough
mine did the same, then I also broke one of the tabs off, bought a new one from ebay but now don't lock it, ours is under a cover, why are they lockable??

possible theft or some idiot putting something in I guess, minimal risk, if not broken I would just leave it unlocked (y)
 
Jun 6, 2012
1,146
1,563
Leeds
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21,344
MH
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Since 2012
Hi, put it in a container of boiling water for a couple of mins, don't know why but this trick always works, think it expands the plastic lugs inside it.
 

Dazzlin

LIFE MEMBER
Oct 31, 2012
1,751
6,213
La Marina, Costa Blanca.
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23,504
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1986 Hymer A Class
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From 2013
Need to replace ours as it has lost its springiness. It shuts but not tightly.
When going round corners with a tank more than half full it hoses anyone next to me and I am getting scale on the side of the van!

Re locking - I read boiling the cap in water helps but did nowt for mine.

Magnum motorhomes is calling for a new cap and a couple of running lights!

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O

Old Soldier

Deleted User
Hi, put it in a container of boiling water for a couple of mins, don't know why but this trick always works, think it expands the plastic lugs inside it.

Let us know if it does work for you Porkster.....not sure I can get me head around that name!! ( or want to........:giggler:. )​
 

Abacist

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Oct 15, 2013
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Devon
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I think a little silicon spray after the boiling water treatment helps!
 

Techno

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Deceased RIP
Jul 28, 2010
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Leeds the one up North
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Rapido 7090F 3 litre 160
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May 2010
Yes I did mine over two years ago and it hasn't stuck again yet. As said place in very hot water this separates the inner and outer skin of the cap so they can turn independently when unlocked. Then copious amount of silicon spray in the tight gap around the inside edge of the cap between skins.
 
Nov 4, 2011
6,006
40,192
Uk
Funster No
18,763
MH
A class
Exp
2001
Hi, put it in a container of boiling water for a couple of mins, don't know why but this trick always works, think it expands the plastic lugs inside it.

I did mine 5 years ago and not had the problem since.

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Dec 12, 2010
5,458
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Cumbria
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since 2011
Timely post, mines just started playing up. God, must have had my tenner paid back half a dozen times now from this site, except of course when I follow "spotted a bargain ?" and I buy stuff I didn't know I needed, anyone want a Huawei R207 unopened, still in it's box :LOL:
 

Angelwitch

Free Member
Feb 5, 2015
73
50
Hornsea
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MH
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Since 2014
I have same prob Porkster......on 2nd one too! will try ''hot water'' trick,if that doesn't work i will leave it unlocked.So if anyone sees me out and about and wants to ''tamper'' please make sure it's wine or brandy,cheers :)
 

Techno

LIFE MEMBER
Deceased RIP
Jul 28, 2010
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Leeds the one up North
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Rapido 7090F 3 litre 160
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May 2010
If buying a new one do not discard the old one as the lock barrels can be swapped if your keys were suited.
 
OP
OP
PORKSTER
Sep 15, 2009
1,978
4,798
Sussex coast
Funster No
8,475
MH
Lowline
Exp
learning
Timely post, mines just started playing up. God, must have had my tenner paid back half a dozen times now from this site, except of course when I follow "spotted a bargain ?" and I buy stuff I didn't know I needed, anyone want a Huawei R207 unopened, still in it's box :LOL:

SNAP lol
 
Apr 28, 2013
3,682
81,510
Alentejo,Portugal
Funster No
25,750
MH
Hymer A Class
Exp
Since the '80,s
mine did the same, then I also broke one of the tabs off, bought a new one from ebay but now don't lock it, ours is under a cover, why are they lockable??

possible theft or some idiot putting something in I guess, minimal risk, if not broken I would just leave it unlocked (y)

Remember years ago reading they started lockable caps as a few idiots found they were the right height for peeing in!!!!
I run a little WD40 off a rag,just enough to lubricate.

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