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Airwolf probe seal

Discussion in 'Anything Airgun Related' started by Big Uli, Jul 29, 2014.

  1. Big Uli

    Big Uli Donator

    Messages:
    654
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    Location:
    Gretton, Northants-Leicestershire Border
    My Airwolf is a bit down on power at 10.5
    I have changed the oring on the probe but still no joy
    I've shone my red torch at the breech and I can see the light down the barrel
    I bought these seal from a ebay seller and have already contacted them to inquire if they may have send the wrong seals
    My Airwolf is a .177
    Considering the price of those Daystate seals I have decided to buy 003 orings directly of the bay
    Any perticular type I should buy?
    Something that is of a good or better quality?
     
  2. Bemused

    Bemused Engaging Member

    Messages:
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    Location:
    Stoke
    If you suspect the probe seal test it by placing a small piece of tissue paper around the breach and fire a shot.
    If the tissue is undisturbed the seal is OK, they look like they should last around five years.
    But if I read your post correctly the seal is passing light?
    The seal may be damaged by incorrect alignment of the probe / breach entry. Check this by loading a pellet with the bolt but don't fire the shot, open the breach then fire the shot to leave the pellet loaded but gun uncocked and safe. Gently push the pellet back out of the breach with a rod from the muzzle end and inspect the pellet for damage under an eye glass. You should see a clean pellet with a uniform rifling pattern. If it shows sign of damage the probe / breach is not correctly aligned. If misaligned the barrel needs lifting or lowering with the upper and lower grub screws, to do this you need to strip the action for access to the lower screws. Mine had this problem and now the lower screws are junked and the breach aligned with shim between the breach and receiver giving a more accurate and secure barrel location in the process.
    Do you have shot consistency at 10.4 and is your chrono accurate?
     
    Last edited: Jul 30, 2014
  3. Kenbarcon

    Kenbarcon Donator

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    Location:
    Hunmanby, Filey
    Contact gantongunner for o rings, he has loads that will fit your gun.
     
  4. cloverleaf

    cloverleaf Super Moderator Staff Member Mod/Admin

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    Strange that the seal appears to be passing light; although as Bemused states the tissue test is the definitive one (try it with the gun loaded; if it doesn't blow the tissue to bits you can also try it again with your hand over the breech to test for smaller leaks).

    Tbh any 70 Shore Nitrile O-ring (what you'll get if you just ask for "O-rings") should do the job - it's also worth inspecting the bolt to check that it's not bent (a known problem). How old is the gun? If it does have an issue obviously it's better to get it done under warranty if you can rather than pay Daystate's exorbitant costs - If it does require non-warranty work I hear staffs customs rifles have a good rep for working on Daystates :)
     
  5. Bemused

    Bemused Engaging Member

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    Location:
    Stoke
    Duh, well spotted, I forgot the obvious.

    Plus 1 for Dave at staffs customs rifles and he is an ex Daystater
     
  6. Big Uli

    Big Uli Donator

    Messages:
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    Location:
    Gretton, Northants-Leicestershire Border
    Hi guys

    Thanx for all the replies

    Chrono is accurate and it is consistant at 10.5
    pellet seems fine, checked with a 10x lense from me panasonic FZ20 but the way my eyes are going I'm not taking that for granted

    Simon from the DOC has kindly offered to send me some factory spec orings

    Did the barrel seal test with tissue but it was inconclusive
    Expected the tissue to be moved big style due to the light passing the seal
    Both my AA S4*0 don't pass any light but Simon on the DOC said a little light will pass but how do you define a little light

    Mick at kibworth is Daystate trained and has all the certs to show for it
    He already sorted my S400 when the pressure gauge sprung a leak
    He will be my first choice if I can't get this sorted by polishing the hammer and cleaning the solenoid
    I have the anti tamper tool on order here on the forum
    Also Kibby is 20 mins drive from home and they know me there

    If thast puts power up over 11 ft/LBS all is well
    If not then there is a problem and Mick will get the job
     

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