Originally Posted by
RubeRad
Everybody already said B-screw, that is the specific means for adjusting RD/cassette clearance. No idea why it might have cleared before but be hitting now.
If screwing in your B-screw all the way is not sufficient, take it out, go to any hardware store, and buy another longer bolt with the same threading.
I didn't remove the B screw during cleaning so I wanted to check to see if anyone else had this problem and it was not a B screw adjustment issue. I think the spring inside the RD may be shot. Trying a longer screw next.