that looks exactly like my old crank bolt even sheared with the same dome shape on the bolt head side

how long did your EG last past when it suffered the sheared bolt?

it might be giving away his trade secrets but i don't suppose you know what your repairer did to make sure the new pulley didn't loosen again with a damaged keyway do you? i used strong rtv silicone, was tempted to use one of the super polymers that loctite make but thought that one day i just might need to get that pulley off again

thanks