So a friend and I just bought a '95 240 and were told that it a had a bad timing chain tensioner. It would run, but it make a god-awful sound like the timing chain was banging against the block. After removing the valve cover and front covers to asses the situation we discovered 2 chunks of metal floating around in the head. Nothing was wrong with any of the tensioners or guides, but the metal is greatly disturbing. We assumed the metal was making the sound and reassembled the engine and tried to start it up. Unfortunately, neither one of us thought to mark the distributor before we removed it and now I am worried that the timing is way off. The motor turns over, but won't start. So my questions are 1) does anyone have any clue where the metal might have come from and 2)how can i fix the timing? Thanks for the help. Oh, I have pictures of the pieces if anyone wants to see.