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Advice Help! Bsa Ultra/ Hornet

Discussion in 'Anything Airgun Related' started by Howlin Wolf, Jun 10, 2019.

  1. Howlin Wolf

    Howlin Wolf Posting Addict

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    Hi oh wise and knowledgeable esteemed folk!

    So, received the parts from @lone wolf (many thanks Gareth!) and got busy with the conversion of my ultra mmc.

    All good, or so I thought :rolleyes:

    Now it seems that the reg should have a housing which connects to the knock off valve body, except mine didn't (and yours truly didn't check before I assembled it).
    :notme:

    So, I now have a full cylinder but when dry firing, no air passes through the transfer port.:facepalm: I'm a prize numpty!

    It appears that the air is not passing through the reg at all, and as such, I cannot empty the cylinder to take it out.

    Any ideas folks, I'm completely stumped!
    :shrug::shrug::shrug::shrug::shrug:

    Many thanks in advance
    Jay
     
  2. QuoVadis69

    QuoVadis69 Donator

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    Hope you get it sorted mate.
     
    Howlin Wolf likes this.
  3. Howlin Wolf

    Howlin Wolf Posting Addict

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    Cheers buddy. It's certainly testing me!
    :rolleyes:
     
  4. JLB

    JLB Busy Member

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    It sounds like you have missed the reg 'stand off' from the reg assembly, this creates the plenum of stored air waiting for the rifle to be fired. This will now allow the reg body to push hard up against the firing valve when filled so the hammer now has to move the firing valve & reg body for it to fire, did you put the valve return spring in ? if so this has probably been compressed & become coil bound. You may have to sacrifice the firing valve stem or fill valve to try & remove the air from the cylinder using a pokey tool on the fill valve to open it, or hammer & punch on the firing valve to overcome the extra resistance.

    John :)
     
  5. Howlin Wolf

    Howlin Wolf Posting Addict

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    Thanks John

    Yes mate, I put the return valve spring back.
    I can move the firing valve, but you may be right in that the reg is pressed up hardagainst it.

    Think I may well just need to punch out the valve.

    Cheers buddy
     
  6. JLB

    JLB Busy Member

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    I'll put up a pic of a Hornet regulator I have here just for you to check to see if were on the right track.

    John :)
     
  7. JLB

    JLB Busy Member

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  8. metalman

    metalman Big Poster

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    I take it there is no contents gauge on the gun?
     
  9. Howlin Wolf

    Howlin Wolf Posting Addict

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    Yep, no gauge on the gun, but checked with the bottle and it's full.
    That's the one... it's the silver coloured outer housing that's missing from mine.
     
  10. metalman

    metalman Big Poster

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  11. JLB

    JLB Busy Member

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    You should be able to tap the firing valve with a hammer & punch then to simulate firing a shot, the air bleeds past the threads into the plenum, not out of the end where the valve return spring locates. That is if the reg is actually working correctly and allowing air through to the plenum chamber though.

    John :)
     
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