I've got the dreaded hanging idle that many also here have with the Eldebrock carb. After checking the cables, and carb for gumming and finding nothing I took the pumper mechanism out and noticed that it is hanging badly and not letting the slide down completely unless I blip the throttle. What I mean is when I push the mechanism down, it stays down and take a bit of force to pull back up...not much but more than I think it should. I tried lubing the blue o-ring with no luck. My next thought was that the o-ring has swollen. What I'd like to know is how much friction should the pumper mechanism have. Should it slide up and down with little effort? Should it pop back up using only the little spring in the mechanism.