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Stealth bottle valve leaking

Discussion in 'Anything Airgun Related' started by markmr3, Jun 5, 2015.

  1. markmr3

    markmr3 Newbie

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    Hi all, the top hat valve seal is leaking on my Stealth. I am trying to get a new valve but Leupys custom shop is closed. Does anybody esle know where I can get one from apart from Gunpower. Apparently now they only sell complete bottles and I have read reports that the valve gunpower used to supply was a poor item. I havent stripped the old valve to find the fault but then again I cant find replacement parts for it. Thanks
     
  2. andy46

    andy46 Donator

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  3. oliver13

    oliver13 Donator

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    Hi, welcome on board.

    Where exactly is the valve leaking from - along or from inside the steel valve stem, or from around the edge of the circular brass valve body insert?
    Also, it maybe coming from where the valve joins the cylinder or or bursting disc but that's unlikely.

    Dunk it in a glass of water & see where the bubbles are coming from.
     
  4. markmr3

    markmr3 Newbie

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    Its leaking from the brass disc at the top of the valve. I have taken it out and cleaned it but it still leaks. I also tried a thin film of silicone sealant then tightened up the disc yesterday but today there is still a slight leak. So im on the right track as there is only a air bubble every second when put into water. Could I put a thin O ring to seal it?.
     
  5. oliver13

    oliver13 Donator

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    It's a dodgy O ring, sometimes the machining is a bit iffy & the O ring gets butchered during assembly, I'd check for sharp edges & smooth them off to a nice radius if you find any.

    The O ring probably needs replaced, it's an imperial size, from memory a half inch & I'm not sure of the section, I'm out & about at the moment, I'll check when I get back in
     
  6. johnbaz

    johnbaz Big Poster

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    Hi

    I bought a Stealth cheap as it was leaking, There's no O rings in mine though :confused:

    Can see the damage that was done when something exited the cylinder on the valve and seat :up:

    [​IMG]

    [​IMG]

    [​IMG]


    I keep meaning to buy some PTFE or Nylon rod to make a new one in my lathe but it's not high on my list of priorities just now ;)



    John :)
     
  7. markmr3

    markmr3 Newbie

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    Thanks for the pics, but mine seems all nice and clean inside. It only started to leak when I took it to the shop to be filled and next day it was empty again. Question about your photo. starting from the top hat, then brass cap, then black plunger, then spring, then a black spacer and then the brass end cap. Well I noticed when I took mine apart I don't have the black spacer. That makes me think I don't have enough pressure on the spring to keep the valve shut. What do you think?.
     
  8. RichieRich

    RichieRich Ping!

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  9. johnbaz

    johnbaz Big Poster

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    It could be that you need a longer/stronger spring then!

    I know they changed specs on the valves at least once as i've seen a different setup to mine :up:


    John :)
     
  10. billblackburn

    billblackburn Member

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    Depending on age and calibre, all valves are different, I bought valve parts from Gunpower not too long ago. There are two o`rings related to the brass disc, one goes around the external circumference and seals the disc into the bottle when screwed in. The other sits inside the valve hole and seals the valve during firing cycle. if there is no large o ring around the circumference, it will definitely leak. If the smaller o ring is leaking then suspect the plastic black seal on the end of the valve stem.

    [​IMG]
     

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