I started my engine once a few months ago and it ran perfectly. Then I tried to start it again a week later and couldn't get it to fire up again. Now I finally had time to look into it again and discovered a crescent shaped cut in the timing belt across 2/3 of the belt width. So I took off the valve covers and found that both cams had moved about 60 degrees clockwise from where they should have been with #1 at TDC. Obviously the belt jumped a few teeth whenever it got cut. I have no idea what could have cut it yet until I dig a bit deeper into it. So I'm wondering if I would have had any valve vs piston action when I tried starting it the second time.