X Valve help

[jvaughn212]

I am having an issue where when I hold my trigger down, it continues to fire. It isn't full auto, just a shot/pause/shot/pause/etc.

This is my current setup:


X Valve
ULT (No shims)
No Level X shims
Red spring


Not a huge deal, since it works well otherwise but I'd still like to know what is causing it and how to fix it.

Thanks!

[Cokrkilr]

Do you know what length on off pin you are using? It may not be long enough and your getting a little reactivity out of it. Mine did this with a .712 pin and my pneumatic setup, I changed it to a .750 and it went away

[jvaughn212]

It's the standard ULT pin. Not sure on the length. I can try the on/off from my friend's mag and see if I get the same results. Thanks for the idea!

[Spider-TW]

The ULT only has one standard pin length.

It should be one of the top o-rings leaking, either the one on the pin or the one on the body top.

[jvaughn212]

I had planned on ordering a parts kit soon anyway. Hopefully that does the trick. Thanks!

[athomas]

Yes, as mentioned, it sounds like one of the top on-off orings is leaking. When you get your parts kit, make sure you also get a kit for your ULT. These orings aren't standard orings that come in the retro/X valve parts kit.