I've tried with the bolt cocked. And I always store my pumpers with 1 pump so I'm not sure what's going on. I opened it up and inspected valve and piston seals and they looked fine. Anyone know what size o rings they are and what type of greases I should use?
I figured it out. The front o ring on my valve though it was factory new was undersized or the groove too deep. A couple layers of Teflon tape underneath and then i put it back on and all is good again.it appears the airbwas making it by the front O ring and out of the exhaust hole in the barrel bypassing the valve.George