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Question Brocock Hunter .177 Fill Valve Seal.

Discussion in 'Anything Airgun Related' started by Jack, Apr 29, 2018.

  1. Jack

    Jack Big Poster

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    Location:
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    Hi all, havent used my rifle in a long time, recently decided to get it out with the intention to sell it.

    After topping it up, I turned the valve to release the residual air in the hose of the pump and the tank emptied :(

    Is it an easy fix? Has anyone got a strip down guide? Searched the forums and they don't seem easilly obtainable.

    Cheers.

    Jack.
     
  2. nevadacowboy

    nevadacowboy Busy Member

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    If your bottle on the gun is empty or very low try cocking the gun before you fill it. Also, give it a very quick blast of air from your dive bottle when you first connect it to the gun.
     
  3. Jack

    Jack Big Poster

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    Dont have a dive bottle, use my stirrup pump.

    Cocked it when I started too fill it, got to the normal 20-30 BAR then heard the "tink" and proceeded to fill it up. Soon as I tried to take it off it had let the air all back out.

    https://www.bestfittings.co.uk/shop...ngs-stainless-steel-high-pressure-fill-valve/

    This is the type of filler valve I have, wondering if it's worth trying to take it out and blast some air through with an air gun at work, or just order a new one :)
     
    nevadacowboy likes this.
  4. nevadacowboy

    nevadacowboy Busy Member

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    If you know anyone with a dive bottle ask them to give it a quick blast or go to your local dive shop if you have one.
     
  5. Jack

    Jack Big Poster

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    Thank you, dont know anyone with dive bottle :( I've got a compressor at work so shall give it a squirt with that tomorrow. Just trying to work out what size this one is now, in case I do need to order new one :eek:
     
  6. Jack

    Jack Big Poster

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    1z1wpad.jpg

    So it's the o ring in the red circle thats perished. Does anyone know the size / where to get a replacement?
     
  7. smudger1234

    smudger1234 Well-Known Member

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    It seems to be the same as the Daystate one. Quite a few places sell these fill valve o rings. Important to get right material though as nitrile doesn't last very long here...
     
  8. nevadacowboy

    nevadacowboy Busy Member

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    I wouldn't advise using the works compressor as only clean dry air should be used in a PCP.
     
  9. Jack

    Jack Big Poster

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    I used a stock daystate image however that's only because it does indeed look very similar.

    A friend of mine said he has some spare and they're the correct material as he has had problems before! So I shall go see him and see what's what and keep y'all updated.

    If anyone gets any other brainwaves in the mean time all help gratefully received. Been a while since I've fettled with my air rifles!
     
  10. Airwolf1

    Airwolf1 Busy Member

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    Did the valve click when it initially opened upon filling? If not it may not use this system, some older guns use a conventional valve behind the foster fitting. I don't know whether Brocock did but the older Daystates did and the newer valve does not fit them so be careful.
     
  11. Jack

    Jack Big Poster

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    Yep. Few pumps in and the distinctive "clink" noise, then the pressure on the pump gauge matches that of the cylinder. Is this good sign?
     

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