Another ULT Problem!

[wahoo5x5]

I just put my x-valve in with the ULT it came already installed . When I fired it it goes rapid fire, so I start to take out shims one at a time..all the way down to no shims... still rapid fire.I have a Crossfire tank fixed at 800 to 850? Ant help would be very helpful! Oh yeah it also fires once when I first gas it up. :cry:

Thanks,

[mostpeople]

pics would help

and 1 shot after gas up is normal operation..

[wahoo5x5]

pics would help

and 1 shot after gas up is normal operation..
PIctures of the ULT the whole bolt???

[mostpeople]

ULT assembly, trigger assembly (do you have trigger stops?)

take the ULT out and take a pic of the hole in the valve where it goes also

mainly the ULT assembly need a few good pics of it

and a pic of the marker as well..

[wahoo5x5]

ULT assembly, trigger assembly (do you have trigger stops?)

take the ULT out and take a pic of the hole in the valve where it goes also

mainly the ULT assembly need a few good pics of it

and a pic of the marker as well..
Ok here are some pics hope their good enough.
http://img96.imageshack.us/img96/3276/ult1jw0.th.jpg (http://img96.imageshack.us/my.php?image=ult1jw0.jpg)
http://img96.imageshack.us/img96/1628/dsc03743vp7.th.jpg (http://img96.imageshack.us/my.php?image=dsc03743vp7.jpg)
http://img96.imageshack.us/img96/6349/dsc037511vq8.th.jpg (http://img96.imageshack.us/my.php?image=dsc037511vq8.jpg)
http://img403.imageshack.us/img403/3187/dsc03753tt1.th.jpg (http://img403.imageshack.us/my.php?image=dsc03753tt1.jpg)
I can take more if you need other views..again thank you!

[wahoo5x5]

Ok here are some pics hope their good enough.
http://img96.imageshack.us/img96/3276/ult1jw0.th.jpg (http://img96.imageshack.us/my.php?image=ult1jw0.jpg)
http://img96.imageshack.us/img96/1628/dsc03743vp7.th.jpg (http://img96.imageshack.us/my.php?image=dsc03743vp7.jpg)
http://img96.imageshack.us/img96/6349/dsc037511vq8.th.jpg (http://img96.imageshack.us/my.php?image=dsc037511vq8.jpg)
http://img403.imageshack.us/img403/3187/dsc03753tt1.th.jpg (http://img403.imageshack.us/my.php?image=dsc03753tt1.jpg)
I can take more if you need other views..again thank you!
Oh yeah no trigger stops and a level 10 bolt.

[mostpeople]

Hrmm, do you have the little black o-ring on the pin?

Im trying to think of what it could be but im stumped... are you sure about your tank output psi? The reason I asked about trigger stops is, is it possible on the RT that the sear trigger rod is too long and is being bounced back by the trigger hitting the frame?

Your reg looks like it might be a tad far out, maybe screw it in a little more to see what happens, sometimes when the pressure is too low the gun will do many rapid fire shots but at low fps..

[mostpeople]

One thing I notice right off the bat is that you have a lvl 7 bumper, blue, not the clear lvl 10 bumper.

They are technically different however many AO'ers use the blue because it lasts longer. The lvl 10 is more gummy like affecting the bounce properties on impact. So, if we cant find any other obvious issues you should start by getting a new bumper - however im doubting thats it.

[wahoo5x5]

[QUOTE=mostpeople]One thing I notice right off the bat is that you have a lvl 7 bumper, blue, not the clear lvl 10 bumper.

They are technically different however many AO'ers use the blue because it lasts longer. The lvl 10 is more gummy like affecting the bounce properties on impact. So, if we cant find any other obvious issues you should start by getting a new bumper - however im doubting thats it.[/QUO
Yeah that little black o-ring is their..uummm I did notice that when I gas it up the sear rod is right up against the trigger, and I'll see if I can find the out put pressure for the tank online.

[mostpeople]

nono, you need to check it for yourself, with a guage.. just take a HP guage capable of showing 5000+ psi toss it on your ASA and plug the other side. It will show you your pressure.

I think the issue could be that the rod is right up on the trigger, thus when it RT's back foreward it bounces off the trigger and fires itself again. The next step is to screw in the trigger rod at the clevis on the sear and see if that doesnt resolve your issue.

[athomas]

Your problem is most likely caused by a worn sear or a bad/leaking on-off oring. The oring problem could be as simple as a piece of dirt caught somewhere. Is your valve tihgt in the body when you are using the gun. Another thing to check, is the presence of the rail bushing. Sometimes they get lost and forgotten about.

[wahoo5x5]

nono, you need to check it for yourself, with a guage.. just take a HP guage capable of showing 5000+ psi toss it on your ASA and plug the other side. It will show you your pressure.

I think the issue could be that the rod is right up on the trigger, thus when it RT's back foreward it bounces off the trigger and fires itself again. The next step is to screw in the trigger rod at the clevis on the sear and see if that doesnt resolve your issue.
Ok I checked on the tank the out put PSI is 800. I also ajusted the sear so the rod was not on the trigger, and the same thing happens...full auto! do you think the rt rail is the issue?

[wahoo5x5]

Your problem is most likely caused by a worn sear or a bad/leaking on-off oring. The oring problem could be as simple as a piece of dirt caught somewhere. Is your valve tihgt in the body when you are using the gun. Another thing to check, is the presence of the rail bushing. Sometimes they get lost and forgotten about.
I have not check to see if their is a rail bushing,,,not even sure if their was ever one in their bacause I bought it used...when I had my old level 7 valve with level 10 blot on the rail everything worked.

[athomas]

If it worked with another valve then the problem is probably vavle related. I would change the orings in the on-off top area. Only the top 2 cause those types of problems.

[flyingpootang]

athomas is correct. Usally F/A is caused by the on/off pin being to short just like to many shims in the ULT will cause F/A.

[wahoo5x5]

athomas is correct. Usally F/A is caused by the on/off pin being to short just like to many shims in the ULT will cause F/A.
So are you talking about the two bigger o-rings on the ULT? Also are you saying I need to order a new on/off pin?

[robnix]

athomas is correct. Usally F/A is caused by the on/off pin being to short just like to many shims in the ULT will cause F/A.

I had the same issue when I got my first ULT. I took the ULT out and oiled everything. The pins, orings, etc...Fixed it and it worked great afterwards.

[wahoo5x5]

I had the same issue when I got my first ULT. I took the ULT out and oiled everything. The pins, orings, etc...Fixed it and it worked great afterwards.
How much oil? Because I been oiling the snot out of this thing

[robnix]

How much oil? Because I been oiling the snot out of this thing

Enough to coat everything.

[wahoo5x5]

OK quick update,

First off I want to thank everyone who posted... all of the input has got me on the right track. well I got it to stop the full auto effect.It was a combination of all of the tips you guys gave me. Now 4 tanks later I almost have it to where I want it, but I ran out of air again.After I get another fill of air and some more tinkering I will post again to let you know how this all ends and to hopefully help anyone who ever comes across this problem. again thanks for your advice. :clap:

[wahoo5x5]

Alright I have done some more tinkering and this is where I stand right now. I got the mag to start to single shoot and I can even feel the sear rod pushing the trigger back. The level X bolt was leaking but stoped after I put on a smaller carrier. So now when I start to put a little speed on the trigger ,the bolt cuffs , sometimes sticks, and I'm not getting that RT effect. Do you think I need to put on a tank with a 850 PSI output to solve this.I have all 6 shims in the ULT and no shims in the level X.

[Coralis]

sounds like the level 10 is a little tight if you put some oil down the powertube and dry fire the marker some more it will probably wear in enough so that you wont need to keep trying to tune it.

[wahoo5x5]

sounds like the level 10 is a little tight if you put some oil down the powertube and dry fire the marker some more it will probably wear in enough so that you wont need to keep trying to tune it.The oil down the powertube did the trick!Thanks Coralis! :clap: I think I'm going to have that trigger job done from lukes customs.Has anyone here done it(moveing the sear rod up on the sear to reduce cuffing)?

[mostpeople]

uhhh

You are aware that it increases trigger pull weight right? And reduces reactivity.. Luke says this himself. While it may have its advantages it does have these disadvantages as well.

[athomas]

The sear mod works great with the ULT. The ULT already has a lower trigger pull force so you can sacrifice some of that reduced force to gain a shorter trigger pull.

[mr doo doo]

ill let you know soon wahoo.

[wahoo5x5]

ill let you know soon wahoo.
The suspence is killing me ...I guess I'll have to find some other way to kill time at work...well I guess I could do some work today... :cuss: Looking forward to the reports Mr. Doo Doo! :dance: