Need more help with used RT pro

[Minion781]

Thanks to all those who posted to my thread. Nothing helped but I didn't try the dremel yet.

anyway

Here's the problem:

I went to play @ the field today and after gasing it up it started venting out the regulater and no matter how much I adjusted it, it was still venting. Any suggestions? Also, the gun shoots fine without any paint but if I put some paint in it, I will get an air leak and loose pressure in the trigger after the 4th or 5th shot. The only way to stop it is to ungas and re-gas the gun. FYI, I have an RT bolt with lvl 10.

[Tunaman]

You may have an older regulator piston. Might need to change that. Try to change the oring on it first. Dirt on the reg seat oring can cause a leak too...

[Minion781]

Ok, now I was assuming that the the problems were interrelated so I didn't post it in the original post but when I was at the field I couldn't get the gun to shoot beneath 300 FPS ( field requires guns to be chronoed at 290). Will fixing the regulater venting issue also fix this?

[d4m4don3]

What spring are you using? Gold, Red, or Silver?

[Minion781]

im using a gold spring.

[d4m4don3]

Then Tuna's probably right, if you were using a higher tension spring it would be suspect for overpressurizing. But since you are using the stock gold spring I would suggest you get ahold of a parts kit and replace that reg piston o ring and or the reg piston itself.

[Minion781]

Thanks everyone for the help! I recleaned the gun and replaced the reg. O-ring and so far it is working like a champ. now to find a field thats open on MLK day.....