|
You are trying to backdate from one piece chain sprocket to multi piece vernier system. The ends of the cams need to be welded up so the chain wheel will register on the cam. Chain alignment dictates the number of shims needed, period. Porsche cut down the diameter of the ends of the cam so you can’t backdate. Either it’s a later engine with one piece sprocket, or late cams were installed in the engine.
|