Thanks a lot for the insight. I'll run through those checks and see if I can pinpoint where my leak is.
I'm running an AGD carbon fiber frame. Bushing is in place. I'm not certain what size pin I have as I don't have a pair of calipers.
Okay, when I pull the trigger I get a first shot, and then significant drop off after that. When I hold the trigger in after a shot, the bolt does not reset, and after about 3-4 seconds I can hear a hiss down the barrel. I have to manually reset the bolt to take another shot.
So this seems to indicate a bad seal somewhere in the valve? I replaced the Reg Valve Pin Oring, but nothing changed. If the On/Off oring you're referring to is the one that sits on top of the On/Off, then I've replaced that one too.
The space between my trigger and sear is minimal, but I can't screw the rod in any further.
I replaced the Reg Seat Oring, and pulled out the valve pin assembly, and cleaned off those orings. I wouldn't mind replacing them, but I dont really know what size they are, or if I have extras, and it doesn't sound like they're the culprit. I've added a fair amount of oil to everything, and I keep double checking my carrier, and I'm still using the best one.
Still, the problem remains that I get one shot off before I can't fire another. The trigger has pressure against it, but won't actually fire; it feels like when I don't have my velocity high enough, except I'm pretty sure I do. If I hold the trigger in, it was quiet for 10 seconds, and then started slowly but surely to leak from the front.
Is the issue with the trigger rod that it can be too far from the trigger, or too close? Mine is about 1/32 away from the back of the trigger when I hold it against the safety, and I can't screw it in any further. Maybe I need to try and take some off..?
Thanks again for helping me troubleshoot.
You should move this over to its own thread, since it is getting more involved and potentially falling outside the parameters of a simple level 10 problem.
When you do hold the trigger in, do it for longer than 3 - 4 sec. Hold it in for a minute or two. Does the hiss persist, or does it eventually stop, or does it get worst? The easiest way to diagnose this is to air up without the bolt as I mentioned before. That way it totally eliminates the bolt and only evaluates the valve regulator and on-off.
Except for the Automag in front, its usually the man behind the equipment that counts.
As long as there is a gap, it should be fine. The gap means the on-off can open without the trigger impeding it.
The fact that you can feel pressure on the trigger means the bolt is reset. Otherwise the sear would hit the bolt and there wouldn't be any force on the trigger rod to push against the trigger.
What is the output pressure of your tank? Is it working properly so that you are getting the proper pressure?
Thank you again for all the help.
After your last comment, it dawned on me that I'm using a new tank (I just traded my 50/45 for a 68/45). I opened her up today and, surely enough, all the shims have been removed. I'm probably getting an input pressure of about 550 PSI.
I'm going to find out how to order some more shims from Ninja, and then get back at it.
I appreciate all your effort!
If the tank output is low, it will cause your problems. Its a known issue with level 10 valves due to the orings not sealing properly when the operating pressure is near the input pressure. It needs the higher pressure differential to push the oring against the sealing surface.
I have a classic valve with a level 7 that shot great a couple of weeks ago. Installed the level 10 kit with the small/medium o-ring carrier, two shims, and the red spring. Now I can't get gun to fire. I have pressure on the sear, just no bang bang. Help me automag community, you're my only hope.
did you turn the velocity up?
Perfect. Thank you gentlemen! It goes bang bang now.
I replaced my stock bolt system with the level 10 (I am using a classic valve). I used two of the small shims and the brass piece with one line and one dot. I am happy with the bolt's performance and sensitivity but I had to crank up the regulator about a full turn to get the FPS back up where it needed to be (is this normal?). There is a very slight air leak down the barrel. Do I remove a shim or two or do I need a different size brass item down the tube? (sorry, not sure what it's called right meow). The size that I am using right now has one line and one dot.
You shouldn't need any shims. look at the quote two posts up. That tells you exactly what to do. Brass things are called carriers.
Much appreciated for pointed that out! I don't understand the logic behind the bolt spring though. Does this mean that it uses less air at the correct long spring setting vs the short spring setting as far has how high/low you have to adjust the regulator for the required FPS?
It means that the bolt moves the ball more gently to the barrel when using a stiffer spring. Depending on the spring stiffness the gun won't cycle below certain fps, lower the tension the lower the fps the gun will be able to cycle, but then the bolt won't be as gentle.
Take out the shims. You shouldn't ever need them. They might be causing your leak down the barrel. If it still leaks down the barrel after you remove the shims, go to the next smaller carrier size, which is the 1.0 (1 line, no dots). Remember to use the same white powertube oring when changing carrier sizes. Its the oring tension you are adjusting.
When you install the level 10, the smaller bolt stem hole in the powertube starts the bolt off slower and also slows down the air release compared to a level 7 bolt. This reduces the velocity at the same chamber pressure. You need to increase the velocity setting to get the velocity back up to the proper setting. A stiffer bolt spring requires an even higher velocity setting. Its normal. The smaller hole in the carrier oring compared to the original powertube inside diameter, combined with increased tension of stiffer bolt springs, reduces the impact force of the bolt on the ball, which is the whole idea behind the level 10.
I have tried several combinations of carriers and shims.
the universal problem across all sets of carrier/no shims/some shims seems to be failure to reset after a chop or simulated chop.
right now i have the 1.5 with three shims, after trying 0, 1, 2, and 3.
stock x valve, ule body, lukes custom rail, intelliframe.
also the sear is an after market one that came stock on a minimag from glenn palmer. the pin connects to a higher point and seems shorter.
would a stock sear work better?
yes, i could have purchased something new for the same money.
If its not resetting, then you are getting bolt stick. That is caused by a carrier that is too tight for the oring you are using. If the next carrier size causes leaking and you aren't using shims, then perhaps your sear is worn. A worn sear will cause the bolt to sit farther forward and could slightly expose the bolt stem vent hole. If this happens, you end up installing a carrier that is too tight in order to choke off the leak. Try a new stock sear. It will guarantee that the specs are correct.
The sear on the left came to me in a minimag tricked out by Palmer's pursuit.
This is the sear I'm primarily using in the x valve set up.
The sear is very old, I don't know how much play it actually saw, the gun was long forgotten when I aqquired it.
So it could be the sear has worn like previously suggested.
Played yesterday all day with very little problems. The gun stuck up only a few times across five hours of play. I degas and regas the marker and it fires on.
"Sticking up" means bolt forward and leaking down barrel.
The sear on the right is from ans gear and was only used briefly in the x valve, and seemed to be more problematic than the old one. It seemed to have a lot play side to side and so I dropped it to the minimag. Appears to work ok with the minimag.
The sear on the left is an original automag sear. The one on the right is the next generation. It is a little lighter so it reacts better. You can check the wear at the lip where it catches the bolt. There should not be any noticable indentation worn on that lip.
Hi all -
I recently purchased a L10 kit (finally back in stock - thanks Tim!) for my RT Classic and I am experiencing some issues and looking for some assistance.
Essentially my RT will not fire.
I went through the usual troubleshooting steps, and I was not able to find a carrier that would allow the marker to fire, leaking or not leaking.
(I used the same oring for testing and the gold spring that came with the L10 kit)
Input pressure is 800psi, verified with a temp gauge installed on the body rail port, and as suggested in this thread I turned the velocity up until it started venting out the back - still would not fire.
Also worth noting the trigger pressure was very soft while this was occurring, and often pulling the trigger had no effect.
I removed all the LV10 parts, reinstalled my old bolt + power tube spacer\oring and the gun cycles fine, with the normal trigger pull and RT effect.
This, at least to me, would rule out an on\off issue, but also means I am out of ideas..
Any help and or additional troubleshooting tips would be greatly appreciated!
A.
turn your velocity up and make sure you have a new regulator piston as the old ones can't handle the pressure increase needed for the L10
First thought would be if you have one of the older reg piston assemblies that simply can not be turned up high enough to operate the level X without venting. Possibly try this?
http://www.airgundesigns.com/product-p/000822.htm
It should work if you turn up the velocity, regardless of whether you also need a new piston. If it shoots but also leaks out the back after turning up the velocity, then you should upgrade the piston. If it doesn't leak, you're good to go. Well, maybe. I've had regulator pistons that seemed fine after upgrading to Level 10, but then they started leaking after a month or two. So you'll have to wait and see.
That makes sense - I will order the new reg piston assembly asap.
Really appreciate the insight everyone!
A.
Email me directly at AGD if you need some final tweaking...We'll get it going.
AGD is in the house!
Custom gun builds. All the parts. New Website. Factory Service available!
www.airgundesigns.com