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Thread: Leaking HW100

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  1. #1
    Join Date
    Dec 2008
    Location
    Hereford
    Posts
    966

    Leaking HW100

    Had this from new but not used for a little while. Last week I took it out of the gun cabinet and filled up to 200BAR in readiness for use this week. When I came to get it I found all the air had completely gone.

    This has never before happened so I would appreciate some advice as to the possible culprit. Could it be the tiny seal that fits over the end of the air cylinder where it joins the action ...?
    Nothing is enough for the man to whom enough is too little.

  2. #2
    Join Date
    Sep 2012
    Location
    Paisley, Renfrewshire, Scotland.
    Posts
    5,038
    theres youtube videos on detecting the leaks on hw100.
    as a process of elimination, I would first fill the bottle and remove it, mix up some weak fairy liquid /water.. just enough so it can bubble and paint it all over both ends of the cylinder and see if it bubbles anywhere.
    if that is good, I would put a balloon over the barrel and check for leaks through the regulator and transfer port.
    if you watch the vids, its pretty easy job
    Donald

  3. #3
    Join Date
    Aug 2009
    Location
    Pontypridd
    Posts
    1,835
    the two regular culprits are
    1st, the o ring on the brass spigot where the cylinder screws in.
    2nd, the firing valve cap o ring.

    as noted above there are plenty of how too videos online or on the forums, it's easy enough to sort.

  4. #4
    Join Date
    Dec 2008
    Location
    Hereford
    Posts
    966
    Thanks gents. I will have a look.
    Nothing is enough for the man to whom enough is too little.

  5. #5
    Join Date
    Sep 2014
    Location
    ossett
    Posts
    814
    could also be breach block seal

  6. #6
    Join Date
    Sep 2007
    Location
    Hull
    Posts
    2,376
    "Artfull-Bodger
    the two regular culprits are
    1st, the o ring on the brass spigot where the cylinder screws in.
    2nd, the firing valve cap o ring."

    I've had two leaks on mine and both were the cylinder spigot. On the second ocassion the new O-ring I fitted also leaked, so if you change the o-ring and it still leaks don't necessarily assume that it is leaking somewhere else

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