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Tom West's Custom PC77 PumpMaster Classic Short Rifle

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Or ing check valve.... more Q's

March 27 2012 at 1:43 PM

dan house  (Login dan_house)
Crosman Forum Member
from IP address

Ive had a hard time accepting that straight threads are "porous" enough to allow the piston to push thru into the valve.... but everyone that says that I trust, so I'll go with it. But what I'm having trouble with is if the threads are that sloppy, what keeps the bolt from backing out under use and just falling back inside the valve....?

since all this displacement is going on where you cnat see it, how do you know where to set the "gap" for the ring, or the hieght for the bolt to the let ring work? Or am I condemned to a weekend of adjust it, install, shoot, observe and record, and tear it down to readjust.. and repeat until accpetable performance?

Will the O ring CV decrease the valve cracking pressure like the isolated check valve setup?

And does the DORCV have a place in air conserving setups?




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This message has been edited by dan_house from IP address on Mar 27, 2012 1:52 PM

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