Slant crankshaft damper and pulleys

Your brave, Bill! I cut a bonded drives shaft apart to shorten and get rid of the bonded end. I made 2 deep score cuts and while I was changing the zip wheel, the part broke apart under the expansion of the rubber and made a pop like a firecracker. The rubber was under extreme pressure and I would have thought the damper rubber was the same drsign. Also, the 'aft' pulley design makes a great place to fab up a timing wheel. I recently used a p/s pulley for a degree wheel base.