Trying to retune lvl 10 w/ ULT
Ok, I am currently using a RT Pro ULE which came with the lvl X bolt preinstalled and tuned, as well as the ULT. I have installed a palmer stabilizer, which is still breaking in, and so tends to settle around 750 psi during use despite being reset to 850 psi whenever I have the chance. I use a crossfire 68ci 4500 psi tank preregulated to 850-900 psi.
My initial issue was bolt stick, where anytime it was not extremely oiled (ie, six drops in the ASA before every individual game), the trigger would fail to reseat.
I disassembled the bolt, and, following the initial installation instructions on my CD, found that the shortest spring had been installed, which is designed for ~250 fps, and I use ~280 fps exculsively, so I installed the red spring, which I -think- is the medium spring? I also found that the spacer preinstalled was way too small (one dot), and had a small amount of black buildup on the brass side, which I disregarded for the moment, as it did not seem to be in the inside diameter of the oring. I went up two sizes (to one line and one dot) to the size that seemed to slide easily over the pin, but not slide on its own with gravity. I reoiled only the part called out in the manual, namely the black o-ring around the carrier. I kept the two shims originally installed since I never exhibit leaking down the barrel as far as I can tell.
Testing the changes is tough, since I live in dense suburbs where there are no convenient open areas to set up my own chrono, or stores nearby with indoor ranges to test it. I left the velocity adjust as set before changing the spring and dryfired the gun rapidly a few times, with my ASA leaking(it regularly damages tank orings when I remove the tank.) The results were similar but not quite the same as before. This time when i lost trigger pressure, I would hear a faint hissing noise before the trigger would click back into place. I also noted a definite change in the gun noise, to a softer, less sharp pop, I am guessing due to the longer spring. The response trigger also seemed a little less crisp, again, I think, due to the smaller period the bolt is spending open with the longer spring. Is the present issue likely to correct itself once I adjust the velocity to 280-290 fps and get a tight tank seal, or does it indicate a separate issue? I haven't touched the ULT's setup for fear that it would even further complicate troubleshooting, so all I can tell about it is there is one shim leftover in the plastic bag along with a couple spare (I hope) orings.
Lvl 10 bolt spring problem
I have an early X-valve which came with my gun and it will only fire with the gold lvl 10 spring. If I put the red in and raise the velocity it will start to vent out the velocity adjustment hole.
Im positive I need a new regulator piston assy, but how do I go about installing it?