Leaking filler valve

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Lebon
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Leaking filler valve

Sat May 20, 2017 12:54 pm

I originally had an air leak on my S410 from the filler valve ( new style T-bar valve) which I have now serviced with a filler valve service kit. The seals were replaced with care and attention and I used a little silicone oil on each seal to lubricate it prior to fitting the seals.
However the leak still persists albeit a very slight one.
The rifle is a 2011 model so could the filler valve assembly just be knackered and in need of replacement.

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bgaltd
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Re: Leaking filler valve

Sat May 20, 2017 1:26 pm

Did you replace the spring as well as the seals ?

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Lebon
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Re: Leaking filler valve

Sat May 20, 2017 2:00 pm

Yes sorry, thought I'd metioned the spring, it was the complete service kit spring and seals.
It appears its leaking from the threads where the filler valve screws into the end of the cylinder, would adding a couple of wraps of pfte tape be ok ??

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bgaltd
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Re: Leaking filler valve

Sat May 20, 2017 3:18 pm

Lebon wrote:Yes sorry, thought I'd metioned the spring, it was the complete service kit spring and seals.
It appears its leaking from the threads where the filler valve screws into the end of the cylinder, would adding a couple of wraps of pfte tape be ok ??


i wouldnt as it'll shred and and may hold the valve open . replace the seal (RN234).

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Lebon
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Re: Leaking filler valve

Sat May 20, 2017 5:09 pm

Where the filler valve screws into the filler valve body, should there be two o-rings ?

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Lebon
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Re: Leaking filler valve

Sat May 20, 2017 5:11 pm

The leak is from the filler valve where it screws into the filler valve body.

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Roger5
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Re: Leaking filler valve

Sat May 20, 2017 5:16 pm

Lebon wrote:Where the filler valve screws into the filler valve body, should there be two o-rings ?

No, there is only one o- ring, it sits in the fill valve body, it is sometimes hard to see if you don't know what you are looking for, but it should be there,it's S484. Rog

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Lebon
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Re: Leaking filler valve

Sat May 20, 2017 5:55 pm

Ok guys thanks for the help I shall strip the valve out and have a look.

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Lebon
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Re: Leaking filler valve

Sat May 20, 2017 6:10 pm

Guys can this o-ring be replaced with the filler valve body in place, or should I remove the filler valve body from the cylinder ??

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bgaltd
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Re: Leaking filler valve

Sat May 20, 2017 6:31 pm

you'll need to unscrew the fill valve body (S491) to fit o ring RN234 . you can leave the t bar in place .

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