Paintball

[questionful]

Yeah I want a scuba tank really bad. My RT goes through a 68 so fast!

[Grivooga]

Originally Posted by questionful

I've owned two classic RT rails, I managed to unscrew those two little screws on one of them, on the other I failed. One of them didn't have the ports drilled through on one side, IIRC, but I think the other had all of them drilled through.

Ok I have to revise my original response. The second and third ports on the left side are not drilled through to the banjo. They are drilled through to each other though. They just don't connect to the banjo. Strange, but stranger still is that on the right side all three air ports are connected through to the banjo. I'd love to hear what the reasoning behind that was. Regardless, got my gas-thru-stock going by using the right-side third port. Got the piece of macroline that I needed and different 90* to clean up the air-thru-stock arrangement and the ergonomics are astounding.


I'm still having issues cycling. Using the one ring carrier (the one that was originally installed and working fine) now causes a leak down the barrel. Changing o-rings on it has no affect. Adding/removing shims seems to have no affect. One dot carrier does not leak but has too much drag. With the one dot bolt only moves 1/3 to 1/2 stroke and chuffs. Using the L7 spring lets the gun shoot with the one dot but isn't strong enough to push the bolt back far enough to reset the sear if the anti-chop engages. Both LX springs are too strong to use combined with the one dot carrier. Chopped off 1/4" sections on the mid spring but was never able to find a sweet-spot that let the gun shoot without the reg venting but still reset the bolt correctly.

[secretweaponevan]

Originally Posted by Grivooga

I'm still having issues cycling. Using the one ring carrier (the one that was originally installed and working fine) now causes a leak down the barrel. Changing o-rings on it has no affect. Adding/removing shims seems to have no affect. One dot carrier does not leak but has too much drag. With the one dot bolt only moves 1/3 to 1/2 stroke and chuffs. Using the L7 spring lets the gun shoot with the one dot but isn't strong enough to push the bolt back far enough to reset the sear if the anti-chop engages. Both LX springs are too strong to use combined with the one dot carrier. Chopped off 1/4" sections on the mid spring but was never able to find a sweet-spot that let the gun shoot without the reg venting but still reset the bolt correctly.

Here are tuning instructions for the LVL 10.

Remove all LVL 10 shims.
Pick 1 carrier o-ring and stick with it.
Use oil.
Use #2 carrier (2 lines, no dots. It may leak until o-ring is broken in, or chuff. This is fine).
Shoot 1000 shots to break in o-ring.
Move broken-in o-ring to largest carrier that doesn't leak.
Use red spring for 285 fps.
If bolt sticks after encountering a jam, add a shim.

Good luck and post back. Very clean looking setup you have there.

[Grivooga]

Originally Posted by secretweaponevan

Here are tuning instructions for the LVL 10.

Remove all LVL 10 shims.
Pick 1 carrier o-ring and stick with it.
Use oil.
Use #2 carrier (2 lines, no dots. It may leak until o-ring is broken in, or chuff. This is fine).
Shoot 1000 shots to break in o-ring.
Move broken-in o-ring to largest carrier that doesn't leak.
Use red spring for 285 fps.
If bolt sticks after encountering a jam, add a shim.

Good luck and post back. Very clean looking setup you have there.

Done that, mostly, but the number two doesn't even begin to seal. It's not a small leak with the two ring it's a very fast violent leak so I dropped it down to the one ring which only slowly leaks to try and break it in. It seals up with the one dot but it doesn't seem to matter if it's one shim or five, it's got too much drag on it and the spring either won't reset the bolt completely or the reg vents before you get the pressure up with a stronger spring. I'm going to run down to the field in a few minutes and fill two 68s and an 88 to hopefully have enough air to finish troubleshooting this thing. I'm also ordering a pile of 008 polyurethane o-rings from McMaster-Carr. I guess I should also get a new LX bolt spring so I can have a mid-length spring should I need one.

[secretweaponevan]

Originally Posted by Grivooga

Done that, mostly, but the number two doesn't even begin to seal. It's not a small leak with the two ring it's a very fast violent leak so I dropped it down to the one ring which only slowly leaks to try and break it in. It seals up with the one dot but it doesn't seem to matter if it's one shim or five, it's got too much drag on it and the spring either won't reset the bolt completely or the reg vents before you get the pressure up with a stronger spring. I'm going to run down to the field in a few minutes and fill two 68s and an 88 to hopefully have enough air to finish troubleshooting this thing. I'm also ordering a pile of 008 polyurethane o-rings from McMaster-Carr. I guess I should also get a new LX bolt spring so I can have a mid-length spring should I need one.

Check the outer o-ring on your 2.0 and 1.5 carriers (do you have a 1.5?). If the outer o-ring is leaking, that might lead you to believe that the carrier is too big.

You might have to fiddle with your frame screws. A too tight or sometimes even a too loose screw on certain body/rail combos can impede the bolt's travel.

[Grivooga]

Changed the outer o-ring on the one ring carrier just to be thorough since it had previously been working with no leak. I have a 1.5 though I don't believe I've tried it. Swapped out perfect looking inner o-ring with spare and attempted to follow instructions using 2 ring, got violent leak down barrel, reverted straight back to one ring. Might be worth a shot to try the 1.5 just to be thorough. I filled two 68s and an 88 to 4200 so I should have enough air to try and peg this down.

[MondoMor]

Originally Posted by Grivooga

Done that, mostly, but the number two doesn't even begin to seal. It's not a small leak with the two ring it's a very fast violent leak so I dropped it down to the one ring which only slowly leaks to try and break it in.

I spent a long time chasing a defective o-ring on mine. It had some microscopic defect that leaked even on the zero carrier (it was hard to get over the bolt stem!).

The McMaster -008 batch I bought are tight even on my 2.5 carriers (I don't have any larger than that). If you want to try a substitute, the o-ring that goes between the valve pin and that little brass crown in the regulator is the same size as the carrier ring.

It seals up with the one dot but it doesn't seem to matter if it's one shim or five, it's got too much drag on it and the spring either won't reset the bolt completely or the reg vents before you get the pressure up with a stronger spring.

It may actually be your reg piston.

Inside the reg piston there's a setscrew, spring and urethane disk. The setscrew compresses the spring which forces the urethane disk against the small hole on the pressure side of the piston. On mine, something broke down the threadlocker on the setscrew inside, which allowed it to back off and the piston to leak at much too low a pressure.

I think I'm going to reassemble it and "fix" it so it will never leak, no matter what. I'm not going to run CO2, and it's hard to contrive another instance where it would need overpressure relief.

[cockerpunk]

what is the callout on the carrier o-rings? as in how are they spec'ed and where can you get them?

[going_home]

Originally Posted by Grivooga

Changed the outer o-ring on the one ring carrier just to be thorough since it had previously been working with no leak. I have a 1.5 though I don't believe I've tried it. Swapped out perfect looking inner o-ring with spare and attempted to follow instructions using 2 ring, got violent leak down barrel, reverted straight back to one ring. Might be worth a shot to try the 1.5 just to be thorough. I filled two 68s and an 88 to 4200 so I should have enough air to try and peg this down.

I probably have one the middle springs laying around here somewhere.
And if you need a level 10 installation CD let me know.
Best 25.00 I ever spent was on that scuba tank.
I use it for testing stuff a lot. And its only 4.00 to get it filled.