Major leak problems.

[michbich]

I bought a used mag (hyper frame with RT valve, aftermarket bolt) arround 5 years ago. It was already leaking when i got it but tried to fix it with no success. It has been laying arround without ever getting used by myself since i got it. Today i aired it up and it leaked from the hole in the rear velocity adjuster so i opened it to check the oring on the piston assembly and it needs replacement but i don't have the orings right now. So i put it back together and now it won't even fire. It makes a PUFF once in a while, it leaks from the barrel and still leaks from the back.

Anyone have a clue? it would be very appreciated.

[athomas]

Take the valve apart and give it a good cleaning first. Inspect all orings and replace as necessary. I would do a wholesale oring change as a first order of business when buying a used mag. That way you know you are starting fresh.

To get it to fire the way it is, turn up the velocity. A leak from the barrel is usually a bad powertube oring or a powertube spacer that is too long.

[LoveMyMagMoreThanYou]

If your 'Mag is leaking out the back you have your velocity turned up too high or you have a bad piston oring. Since you said you have a bad piston oring, I would assume replacing that would do the trick. I agree about replacing ALL the orings. Go to the AGD store and buy TWO oring kits. The reason I say 2 is to replace all of the orings and to have replacements on hand. Now, I don't believe the piston oring is in there, so buy one of those too.