2 Week Old 98 Shooting Horribly

Yea I pictured the same thing you said about the valve and valve o-ring. Checked the power tube and theres no cracks or any damage. I called up Tippmann and their sending me a new valve, hammer o-ring and drive spring. Hopefully when I take out the old valve from the power tube when my parts arrive, Im going to pressure test it and make sure their arent any hairline cracks. If there aren't, and the new valve/hammer o-ring/drive spring don't fix the problem Im just going to send it in to Tippmann. They have GREAT customer support btw, asked me if I needed any other parts and didn't charge me a dime.

Edited by TSI27 - 16 July 2008 at 4:57pm

I kinda skimmed through it but did anyone else mention that it could also either be the polished internals mod that he did or the addition of a stock if it messed up the spring?

Well I guess I was right. I got a new valve , hammer o-ring and drive spring which seemed to do the trick. Now my gun is actually shooting hard and stronger and more accurately. Only problem I have now is from time to time Im getting a SMALL amount of frost/ice which hopefully will be fixed with an expansion chamber. Is the GTA chamber a good chamber? Im looking for something that looks stock yet function right. I think its a 4 chamber but am not sure.