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GTA ARK (Airgun Repository of Knowledge) Airgun Content Achives > Hajimoto Productions

.25 cal regulator

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Treb37:
So I thought we were done with this thread but it turns out not so much....After thinking I had this straightened out I started having trouble with my Ninja reg. Anyway to make a long story short, my reg test rig gauge was hoopajooped. I had forgotten I dropped it once and never thought twice about it since it hit the carpet first but it was reading between 300 and 400 psi low. When I would pump up the bottle after a shim adjustment it would get up to nearly 500psi on the pump before the test rig would show any pressure and I thought something was wrong with the reg.  ??? :o It showed up when I shot across the chrony and was getting 790 on the first shot and increasing to about 950 as the shot count increased. So the pressure on the bottle side of the valve was holding the valve shut just like it does on non regulated PCP's with a typical bell curve.

Motorhead:
AKA: Valve lock

Treb37:
Yep it looks like valve lock...what's confusing me now is why I am having the issue below 2K on the reg output.  Could it be hammer spring sag or am I missing something else?

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