Just got a AGM 3016 yesterday, playing with it a bit after receiving, worried that it was missing the air stem like a Coleman would have, fiddled with it a little later some more and see that the C/V is a design I have never seen. The pump shaft engages a slot in the C/V to open and close it. Relieved now that no unobtainable part is missing. Will fire up later today. Duane
