http://i561.photobucket.com/albums/s...g1TDC-Copy.jpg
"Yes, there are two marks on the damper. If you line them up like this, #1 is not necessarily on its compression stroke. What it does do, is put #1 cyl at TDC. It could be TDC of the compression stroke, or it could be TDC of the exhaust stroke, you still need to figure out which stroke #1 is on. Worst case scenario is rotate the crankshaft one revolution clockwise." old master