Coke can shim, or get a small packet of carbon assembly paste (not dissimilar to the sand idea), and apply a little. Also, take out the clamp bolt, make sure it's greased: threads, under head; and if there's a washer, on that too, as well as between the washer and bolt.
Coke can shim, or get a small packet of carbon assembly paste (not dissimilar to the sand idea), and apply a little. Also, take out the clamp bolt, make sure it's greased: threads, under head; and if there's a washer, on that too, as well as between the washer and bolt.