That's very odd. In the 6 years of owning a dsm and being fairly active in the online and local communites, i never heard about that. It seems like some cars skipped a tooth a bit to easily for my comfort level but nothing like that. Luckily the valves arn't close enough to hit the pistons since it's a non interference engine.ryan s said:youll have to worry more about the timing components. one thing you need to check on the donor 6bolt is the cam keys. my buddy kept losing timing in his old tsi and couldnt figure it out...his cams kept slipping. oh and eliminate your balance shafts asap.