Originally Posted by Andrew R Stewart

Good, then you know what to do. Take apart the source, clean and reassemble with proper lube/paste. Don't assume that the bike parts were assembled with the best methods. Don't assume that only a tightness issue is happening. Don't assume anything. By taking the sub assembly apart you establish the base line that you determine and can go back to later if problems return.

I'm not saying that your assessment is wrong. Just that many here have thought so initially and later found out otherwise. I have found clamping noises to be as often the result of surface condition as from tightness. Mere tightening doesn't give you the complete picture. Andy