Mag heavily leaking out of the barrel.

[pbgunner93]

The gun airs up perfectly fine but the problem is that ween i take a shot or two.

After a couple of shots the mag begins to heavily leak down the barrel.
The air source im using is CO2. And i doubt liqud is getting inside the valve because i have used both an expansion chamber and a remote line on the gun.

Could it be a powertube o-ring failure?

Would lack of ample air pressure in the valve cause this leaking?
All replies are appreciated.

[DamianTC]

what type of valve are you using? (classic, x-valve, rt, etc) and also what bolt? (level 7 or level 10)

also try this: when you fire, hold the trigger down and let us know if you still have the leak.

[pbgunner93]

It is a 68 classic mag with a level 7 bolt i believe. It also has a classic valve.

When i hold in the trigger the leak stops

[DamianTC]

yeah go ahead and replace that o-ring in your power tube

[pbgunner93]

thanks!

[DamianTC]

be sure to let us know if that fixes it for you

[michbich]

If it leaks after a couple shots, i don't think it would come from the powertube oring. If it did, it would leak when aired up straight away.

Do you have to push the bolt back to reset the sear when it starts leaking?
Remove the bolt, does the spring pass the end of the bolt?
Is you thumb screw too tight? It should only be hand tightenned.
Do you have the rail bushing installed? It's the little bushing that connects the trigger frame to the rail. It is located in the same hole as the thumb screw.
Is your sear worn?

[Coralis]

I would say power tube oring as well if that doesnt cure it a longer spacer might be in order.