hi all

just done a total engine revision got it back together no problems run for 6days and then yesterday the alternator went and today the cambelt tensioner mounting bolt broke off in the head damaging the hydraulic tensioner aswell my question is has this happened to anyone else and can you be lucky and have no damage to the valves or do you hit the valves no matter what,i got no warning and it was at very low engine revs.

oli