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Advice HW 100 Leak From Air Cylinder

Discussion in 'Anything Airgun Related' started by DaveC_24, Jan 24, 2014.

  1. DaveC_24

    DaveC_24 Busy Member

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    It appears that after a year of problem-free ownership, my HW100 has developed an air leak! It's a moderately slow leak, bleeding about 50 bar off over 24 hours. I unscrewed the air cylinder from the rifle, refilled it and left it overnight, and it has leaked again so it looks like it's the air cylinder itself which is leaking rather than its connection to the regulator assembly. Do any of you have any idea what might be the cause of the leak/what to try next?

    Thanks in advance. :)
     
  2. kev...

    kev... Engaging Member

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    You could try putting the cylinder in a bowl of water so you can identify where the leak is coming from just a thought!
     
  3. gasman

    gasman Up a bit,,,,,,,

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    I wouldn't use water, if you try if find a leak I'd use gas leak detector, your get it at any good plumbers merchants
     
  4. DaveC_24

    DaveC_24 Busy Member

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    What sort of thing is this/what would I be looking for? Is it a mechanical device, or a paste of sorts to paint over joints/seals, or something else entirely?
     
  5. gasman

    gasman Up a bit,,,,,,,

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    its a spray can, you spray it around the general area it bubbles up where its leaking
     
  6. DaveC_24

    DaveC_24 Busy Member

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    Cheers, I thought that might be the sort of thing - I take it it's easy enough to clean off afterwards?
     
  7. butch

    butch Busy Member

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    Or you could just send it to Hull Cartridge pay £25 tops and it comes back like new with a guarantee
     
  8. Lee67

    Lee67 Posting Addict

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    Plenty dip the gauge end in water, as that's one point of a leak...
     
  9. DaveC_24

    DaveC_24 Busy Member

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    It's definitely coming from the gauge end (stuck a balloon over it), not sure if it's from the fill port or the actual joint of that assembly to the air tank body, or indeed the guage itself. With regards to Hull Cartridge, I've had the rifle just under a year so actually it should still be in warranty - would dropping them an email be the way to go about getting it fixed under warranty? I've not had to send anything back to them before!
     
  10. Lee67

    Lee67 Posting Addict

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    Probs the o ring in the gauge ..if u bought from a local shop then they should be your1st port of call
     
  11. DaveC_24

    DaveC_24 Busy Member

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    Cheers Lee, I got it from the local RFD so I'll take it back down there to be looked at!
     
  12. ratharvester

    ratharvester Donator

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    Vorsprung durch leak lol :D sorry couldn't resist
     
  13. butch

    butch Busy Member

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    You will get it fixed under warranty if it's less than a year old at HC,just ring them tell them what's up and post the air cylinder to them,it will only cost you postage to them.Your post said "after a year"thats why i said £25 to have sorted.
     
  14. DaveC_24

    DaveC_24 Busy Member

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    Ah I see - I bought it sometime in February last year, so I rounded up to a year! ;) I didn't actually think about the warranty, when I first posted!
     
  15. Steve K

    Steve K Posting Addict

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    The leak will almost certainly be coming from the fill port, the little valve in there can stick or get dirt in it.

    Something to try and usually cures it:

    Let out enough air, say down to 150 BAR, insert the fill probe, give the cylinder a quick hard blast of air, this usually clears the valve and allows it to reseal, repeat if need be.

    Usually filling a PCP should be done very slowly, but in this case you need a good blast of air going in quickly. This should, and often does the trick ;)
     
  16. DaveC_24

    DaveC_24 Busy Member

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    Thanks for the tip Steve, will give that a try before I take it to the shop or send it off for repair!
     
  17. ste

    ste Posting Addict

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    Instead of water use white sprite as it won't rust
     
  18. Ruddles

    Ruddles Engaging Member

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    Really?!

    SpriteZero330.gif
     
    Last edited: Jan 25, 2014
  19. DaveC_24

    DaveC_24 Busy Member

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    Well, I tried the trick Steve suggested last night, and it hasn't bled any air out overnight. I've put the rifle back together now and topped up the air, I will leave it a couple of days and see if it leaks any out but hopefully it's sorted. :)
     
  20. Steve K

    Steve K Posting Addict

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    Hopefully that will have sorted it mate, it does happen with some as dirt and grit can get in there, sometimes it takes a couple of attempts, but usually clears it.

    Hope so anyway mate ;)
     

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