[J. A. EARLY]

Gentlemen,

I'm seeking advice on correcting the timing on the screw slot on the roll pin, when it cannot be simply turned into its proper position. Obviously the assumption is also that it has been out and back in at some time to be out of time to start with, but one never knows how many decades ago that was done. What is the secret? I've corrected one in the past by simply turning it but have never taken one of these out before and know many of you have. Don't want to screw it up.

Thanks.