Originally Posted by
Al1943
I think the hanger has been bent back slightly. I've had this problem on my Colnago. Try to bend it back forward gently. This will swing the tail of the derailleur out. You could do this with a large crescent wrench or channel locks. It won't take much force to do the job.
Hmmm, That's a good suggestion.
but is that wise on an aluminum frame? I might take this to a frame guy.