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Message: [QUOTE="golfer, post: 208246, member: 266"] if the poppet valves/seats were addressed properly during the rebuild procedure...you should have no problem holding 2500psi for a looonnng time...maybe a minute to drop a few hundred psi. the poppet valve has tapered seats (upper seat has to seal when firing, lower seat seals when not firing)...very much like a valve in a cyl head...so some (slow & small volume) leakage is normal...but what you described previously...with the very fast drop isn't normal at all... and if this was an o-ring issue...I think the o-ring would have failed catastrophically (no start, esp when hot) by now [/QUOTE]

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