First, I replaced the worn rear sprocket, and , no change. Then, figuring I didn't get the sprocket riveted properly, I bought a new drum/sprocket ass'y from Ted's, same problem. Now, I didn't change the front sprocket as I'd done that a year ago, and it appeared to be in good shape. Anyway, the eccentricity appears to follow the rear sprocket, not the front. Also, a sprocket being a sprocket, I haven't figured how to put the dial indicator on it while the wheel ass'y is in the truing stand to get a better idea as to what gives. Anybody have any suggestions, or has seen this before? I figure it's something simple I'm just not seeing. All suggestions appreciated.
Dr. Dumbfounded Dick