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Thread: leaking regulator

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  1. #1
    Join Date
    May 2008
    Location
    chesterfield
    Posts
    764

    reg.

    IMO.if it was mine I would ring who ever fits the airmasters reg ,you may be able to just send your reg for a full service or at the worst send your cylinder with reg inside, if theres any orings inside the reg because the outer has started to fail it seems false economy to me just to sort the outer orings out. you may be lucky and get away with it then again it could let you down again .. atb gc93

  2. #2
    Join Date
    Dec 2015
    Location
    Cambridge
    Posts
    486
    Took me half an hour to fully service a trench reg, first time i took a pcp apart bsa scorpion btw .
    Xtx and Robert lane do videos on it you need a very faint scratch on the presure screw so you know where to screw it back to .
    Never pulled an s400 apart but heard they are not that hard.
    Scorpion. 177 hornet. 177 txhc. 177 s200. 177 97. 177 99.177 95. 22 80. 22 vulcan. 22 excorcet. 22
    Trying hard to keep it down to 10 rifles.

  3. #3
    Join Date
    May 2005
    Location
    Bruton, Somerset
    Posts
    106
    cheers for all your replies ,I have replaced the external o rings on the outside of the reg and i still have the leak. so it must be the o rings inside the reg.
    I presume as long as i make sure that when i rebuild the regulator the adjusting screw is in the same place everything should work ok ?
    Duncan

  4. #4
    Join Date
    Sep 2005
    Location
    Wrexham
    Posts
    687
    As long as you dont have to touch the beleville washers, then the set pressure “should” be the same when re assembled... Always worth testing when finished though.

    Andy.
    NO LONGER My s410

  5. #5
    Join Date
    May 2005
    Location
    Bruton, Somerset
    Posts
    106
    I have just stripped the reg and replaced the o ring on the stem but the one for the piston "head" is rebated in the body of the reg and and i was to sure how to get it out . anyway have rebuilt the gun and filled and at the moment it seems to be holding air . will wait until tomorrow before congratulating myself to much though.
    Cheers again for all the advice it gave me the encouragement to have a go
    Duncan

  6. #6
    Join Date
    Apr 2015
    Location
    Weston-super-Mare
    Posts
    247
    You may have changed the reg pressure slightly during the rebuild, so I'd chrono the rifle before you do anything else.

  7. #7
    Join Date
    May 2005
    Location
    Bruton, Somerset
    Posts
    106
    have just checked power 7.42 ftlb ! no worries about being on the warm side . will adjust tomorrow as had a busy day and beer is beckoning.
    duncan

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