Thank you, very informative! I have a Bobcat mk2 .22 caliber and i messed around with it and changed the valve and power adjuster. after that i tried to tune the hammer spring but i forgot to mark it so now i have no clue what the factorysetting is. Do you know how many turns out from bottom they usualy comes from factory ? Regards Mark
RazTheRipper - Probably get 100% of the air out of the bottle (assuming you're talking about a bottle gun) then remove (unscrew) the valve from the bottle. Clean and put new o-rings most likely.
Was refering to the check valve pin in of the airtube that you unscrew on the bobcat. It has a check valve mechanism that holds the air back when you unscrew. Mine bleeds. Any suggestions?