Originally Posted by thatfreaknguy
I think my cupseal isnt functioning right I hook it up to air and it sounds and feel like its excaping from the valve with the bolt open. and the only seal ive found is on ebay for 20$ that seems like an awful lot for that lil guy. any thoughts?
Your valve orings could be dry rotted. That is very common with vm-68s these days. All of the seals, minus the cupseal and hammer oring should be replaced.