[OldTee]

Success with one caveat. I loosened up the head nuts and the cam tower nuts and slowly re torqued them, testing by turning the cam as I secured the fasteners. The head nuts I torqued to 25NM followed by 33NM. The cam tower nuts I tighten to 18nm followed by 25NM. Now it turns freely except for one small area where you can feel the slightest drag.

Then a friend came over and observed what I observed, but he pulled on the cam. When pulled forward perhaps 2-3mm the cam bound up. Wear ridge in the cam tower? bent cam? bearing area hitting the tower web? something to worry about?

He left me a spare set of SC cams he had and I am debating removing my cam and inserting those for a test fit. That will tell me if it is the cam or the tower, right?