The valves still leak even when i have no servo hooked up to them, i should have specified that in my original post, i have also tried BVM thin oil and even changed the o-rings in the blue one, i can HEAR the leak comming out at the valve plunger.. As for the bad gear cylander, That is a possibility but would it still do it in Both postions, up and down? if so we may be on to something? Also what would i do to fix the cylander? Russ