Well I'm changing my timing belt today and the saying "something will always come up" holds true...   pull off the crank gear to replace the seal and the slot that the wooddruff key goes in is blown out on one side...     Any suggestions? I'm thinking either replace the seal and tack weld the key in and just plan on a new crank if I have to tear back in, or fill weld in the chip, and file it down as best I can...   neither seem like a great option, but replacing the crank at this time