Originally Posted by
datlas
Thanks. I just lubed the pivot point and it’s slightly better already. Will work on it. Also possible chain is getting old, my vernier calipers are digital with a solar cell, so a rainy day like today renders it useless!
You might have to take it apart. If you remove it from the frame I think there is a circlip holding the bolt in the derailleur. It might be cruddy in there and if you don't want to try and remove the bolt you might be able to get something like WD-40 to soak into it.