NeatOman said:Sure the previous owner didn't adjust the belt for brake in? Some cars require that.
No, it's not that, the causes that I've seen other people attribute to this on the forum I frequent on that car are: The crank keyway has some slop in it, or the dampner is old (most people are reusing this part, which IMO doesn't need to be done on an engine with +150K miles on it.