Can anyone think of why the cam gear would break into 4 pieces and the chain would snap on a newly rebuilt engine? Camshaft and Crankshaft seem to be fine.
I was able to go back and search and I bought the parts from a very reputable guy in Virginia who does a lot of work on his own Rovers. I doubt very much that it was the parts and that would be too much of a coincidence.
If you look at the inside of your front cover there is probably a piece broke out where he put a long water pump bolt in a short hole the chunk fell between the gear and the chain, usually only breaks the chain and of course all the bent valves