Originally Posted by
RubeRad
Hmm, that sounds like two versions of the same guess, hitting the cage somehow. I'll have to take a peek at that tomorrow. Wouldn't that make pedaling noticeably difficult though?.
I don't know for sure, but think that Huey.. means rubbing the side of the cage. My reference is to the chain keeper tab mid-cage between the pulleys.
On some derailleurs the tab isn't that far off the line between the pulleys, and since there's never serious tension in the lower loop, the chain runs over the tab fairly easily. it does add quite a bit of friction, but it's like nothing when compared to normal pedaling forces and you wouldn't notice it with your legs.