My Air Arms s410 leaking air

[JJSTEALTH]

next time it empties .. make shure the cylinder is on tight
also the end valve,
it doesn't take many smarts to remove the cylinder and end valve to check on the o rings (just make shure its totaly empty before having a go)

hope that helps,

JASON..

[Gwylan]

Fit a party balloon over the muzzle, and another over the filler valve. Leave over night. If the barrel one blows up, its the firing valve; with the rifle empty and uncocked, blow through with a bottle to shift any dirt in the valve. If its the filler valve, try the same thing, or replace it. If neither balloons blow up, its the joint between the action and the pressure gauge; replace the two O-rings.

Gus

[motty]

i had the same problem with my s400 when i first got it.

it was dirt in the firing valve, just gave it a blast out with air and never had a problem since.

pull the bolt back into the slack position NOT COCKED! put your ear to the open action and listen for hissing, if there is a hiss its the firing valve.

i think its the most common fault ive heard about with the s4** series

[nitemax]

Check the gauge

[hughgoldsmith]

Mine had a leak which i think was from the firing valve, did the balloon trick and the one on the barrel inflated. So sent it back to the air gun centre and the have subsequently sent it to air arms cause they couldn't sort the problem. So i don't know what is up with it yet. Hoping to get it back soon. Anyone know how long it takes air arms to deal with these things?

Hugh