Valve won't cycle

[Phil]

Here is my frankenMag configuration and problem. Retrovalve vv01478, TacOne mainbody, RT Pro rail, AGD alluminum trigger frame. I am putting 1100 psi to the valve with an Air America adjustable regulator. The valve won't cycle. I can feel the resistance of the on/off pin. I believe the problem is with the on/off pin length with this configuration but I welcome dissenting opinions. If I am right what size pin do I need?

Thanks!
Philip

[BTAutoMag]

I believe its a .75

do you have propper trigger rod gap?

[athomas]

As mentioned, you need the proper length pin (0.750") and there should be a gap between the front of the trigger rod and the back of the trigger when you hold the trigger against the safety with the valve aired up. If the level 10 bolt is not properly tuned, it will cause the same effect due to bolt stick. Have you turned the velocity up far enough to cycle the valve?

[Phil]

This valve comes with a .75 stock and no level 10. Also there is plenty of space between the rod and trigger. I started at 800 psi and moved it up to 1100 psi and it still won't cycle.

[BTAutoMag]

how much is "plenty of space"?

[athomas]

I started at 800 psi and moved it up to 1100 psi and it still won't cycle.

Changing the input pressure won't make it cycle. Increasing the velocity setting might.

[Phil]

The gap is roughly 1/16 and I turned the velocity in until it stopped.