Even with no tension at all in the front mech cable, it won't shift to the smallest ring.
It appears that the black plastic body of the mech is clashing with the seat tube, almost acting like a limit screw.
It used to shift down when I used to ride it about 5 years ago, but since I started using it again a few months ago, it has never shifted down.
Where am I going wrong?
You can see the small mark on the seat tube on the second pic, where the mech touches