Rusty locking water filler cap

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Rusty locking water filler cap

Post by TrickyWoo on Sun Aug 09, 2015 12:09 am

The locking cap to the water filler on our 1992 Talisman, is stiff and awkward to get off sometimes. Once off, you can see the inner locking bits are all rusty. 

Is it worth trying to save it by lubricating the moving levers, and if so what kind of lubrication should I use ( I don't want to get lubrication stuff contaminating the water)? Or would I be better off just replacing it with a new cap, given they are not particularly expensive anyway? If so, how do I identify what would be a correct replacement (or are they all the same anyway)?

Any advice would be much appreciated, thankyou.

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Re: Rusty locking water filler cap

Post by roli on Sun Aug 09, 2015 7:09 am

I had this problem when we had the Executive.  I cleaned it up (didnt dismantle) and after that when I had finished filling I wipe the inside of the filler point with a towel.   When we swopped the van always did the same and we never had the problem.

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Re: Rusty locking water filler cap

Post by Dutto on Sun Aug 09, 2015 10:58 am

Hi there,

I suggest that you:

o  remove the cap,

o  spray a load of WD40 into the lock,

o  use the key to "Lock/Unlock" it a few dozen times,

o  turn it upside down and use the key to drain the WD40 out of the locking mechanism,

o  turn it right way up and pour olive oil into the lock (again using the key to make sure that the olive oil gets to the inside),

o  use the key to "Lock/Unlock" it a few more times,

o  reinstate the cap.

Then oil the mechanism with olive oil EVERY year OR whenever it starts to stiffen up.

Hope this helps. allthumbz

Best regards,
drinksallround

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Re: Rusty locking water filler cap

Post by TrickyWoo on Tue Aug 11, 2015 8:11 pm

Thanks for the suggestions, I'll give 'em a go.

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