Hey, first time poster here,
I bought a used x-valve and level 10 bolt on ebay and they are giving me trouble. First my setup:
X-valve w/ level 10 (duh)
Intelliframe
classic powerfeed body
classic rail
classic sear assembly (no ULT)
I am using a screw on tank with an hp output Myth regulator (supposedly 850 psi which should be great, but I admit that I have not checked this pressure with a gauge; but it runs a stock tippmann or classic mag fine so that should be at least 650 psi).
The problem:
I re-calibrated the level 10 just for good measure and the gun is having firing problems (perhaps unrelated to the recalibration). I am using the 2-line-1-dot carrier (the next size up leaks) and 2 level 10 shims that have the bolt bounce off great. However, no matter what spring I use or how I adjust the velocity, after the first shot the bolt either doesn't move when the trigger is pulled or chuffs like the level 10 is bouncing off paint. I have swept the entire velocity range with all three springs and here are the results:
large spring - never fires
medium spring - fires the first shot and then chuffs unless you let it wait for ~30 seconds
small spring - fires about every other shot and chuffs the rest. Feels kinda like a very slow recharge.
The fact that there is a slight improvement between the medium and small springs suggests bolt-stick, but the bolt slides very freely by hand and I cannot increase carrier size without leaking. The bumper is pretty damaged, but it does not slow up the bolt when I move it by hand.
I should note that the on/off pin fits VERY snugly into the upper o-rings. The trigger pull seems pretty heavy, but that might just be the way it is. When aired up, the sear has a tiny little 1 mm gap between it and the trigger (as expected). I tried to actuate the sear with the gripframe off, but I got the same results.
Yes, everything inside and out was oiled up good at all points of the testing (because I knew you would ask).
The plan:
I ordered a seal kit and will replace the bumper and other seals until it is working. All the hardware looks great, so I don't think the problem is permanent damage.
I was wondering if anyone had any other ideas or had suggestions as to which seals I should replace first. I was thinking:
1. worn bumper
2. upper on/off o-rings
3. reg seat
4. carrier (powertube) o-ring (and resize carrier)
I also have an adjustable max-flo tank reg I can try to see if input pressure was the problem (I felt no rebound at any point in the testing which might suggest that the pressure was low).
Thanks