77 Lincoln, did my worn out timing chain jump a tooth? I’m at TDC, and the only thing that seems to line up is the keyway at 12 o’clock. I’m aware this has the factory retarded cam timing for emissions but it still seems off. The cam gear marking is pointed towards the drivers side and not at 6 o’clock. Either way I’m replacing it to get rid of the plastic tooth gear and the chain is extremely loose.