leaking regulator

[andy coup]

Or the o-rings on the regulator body, the same happened on my BTAS regged s410.

Same with mine a couple of months ago.

As said above, just pull the reg out (make sure the cylinder is empty first), change the o rings and re assemble. Will be good to go then...

Andy.

[dyer]

Thanks for help chaps , do i just unscrew the air reservoir to get to the reg?

[andy coup]

You can do it that way, but every one I have seen done like this leaves scratches in the finish on the cylinder from rubbing on the breech. Best to remove the breech first.

[gc93]

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

[dayglowfroggy]

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.

[dyer]

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

[andy coup]

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.