Argg... So I could not get my hand or a tool on the nut to remove the cable from the Engine. So I pulled as much slack as I could get and got it out enough were I could really line up the cable and make sure it was going all the way into the Tach. Fired her up..... No movement. Took it off and fired her up, cable is spinning.
Took the tach to the bench, put the drill and spun it... Nothing. So I guess I am taking the Tach apart again.