Problem with Retro Valve

[athomas]

I tried to fire the marker again today and had the same problem with the valve not firing. It turns out that Spider-TW was correct, it was the back frame screw being too tight that caused the valve not to fire. When I hand tightened the screw, the marker would fire fine. But when I made it wrench tight, it would not fire. I guess that the pin was too long when the screw was tightened too much. Thanks again for your help.

Actually, when you over tighten the screw, it causes the valve to be misaligned with the body. This causes the level 10 bolt to bind and the valve doesn't have enough force behind it to force it forward.

[georgeyew]

Athomas, that makes sense. Thanks for the info.

[Spider-TW]

I have to admit that I have not seen enough mags to see one bound up by the frame screws. It seems odd to me, first that it causes that much misalignment and second that someone would put their mag back together that with that much difference from one time to another.

On the other hand, my first mag didn't have an allen wrench socket in the rear frame screw, so I didn't have the opportunity to try to wrench it down.

[athomas]

I've not seen the problem either, but there has been lots of documented cases that seem to support this theory. The aluminum seems to compress more that the steel bodies and allows the screw to pull the valve down in the front causing it to not be aligned with the breach. This misalignment causes the binding of the bolt. Its just a theory.

[georgeyew]

Well either way, I know not to tighten it too much or else it will not fire. Thanks for your help guys. Much appreciated.