Topic: Problems with T68 Gen3 Pistol

[NB17]

I've been having problems with my T68 pistol jack hammering (I think that's the right term...it continuously tries to fire, but doesn't recock). I've tried for almost a year now to fix it, and have contacted RAP4 tech support twice during that time, but I still haven't figured out the problem. I purchased a seal kit and replaced every part that was included in the kit, and changed the bolt o-ring with a polythene tank o-ring (techs said the bolt uses tank o-rings). I have tested the marker with both CO2 cartridges and nitrogen using a remote line, but both result in the same thing. I have even made sure the velocity bolt wasn't too far in or out, but the problem persists.

Does anyone have any suggestions on how I could try to fix this? Any input would be appreciated.

[Kevin_RAP4]

Usually, when there is a problem with jack hammering, the hammer o-ring could be worn or damaged so you should see if that's the problem. When it's damaged, it won't recock consistently or not at all.

[sir paintalot]

If your main spring is too weak from being left in a cocked position compressed it might not be opening the valve long enough to reset the sear. Try to swap out the spring.

[NB17]

I'll try switching the hammer o-ring again, maybe I just replaced the one on there with another damaged one. Also, I never would've thought that the spring could be the problem...I'll see if I can scrounge up a replacement spring and if not I'll place an order for a new one. Thanks for the help.