hey 2000prelude..... I have been posting on some other site honda-tech.com , h22a.org forums and everyone there seems to think it will definitely be a worn/torn motor mount, im going to inpsect them, my front mount looks a little worn, they said it was a common problem on those motors..... as far as the valves, I did the valve adjustment to factory spec and it still shakes a little bit at idle with the idle being steady, so the only thing I can think of is it being one of the mounts.....