The question was whether or not the mark would line up on every revolution. Yes the mark will be in the same spot on every revolution, unless your damper is spinning on the crankshaft. But even if you used the tape that wasn't for the correct size damper, the marks will still be in the same spot on every revolution, they just won't accurately reflect the degrees from any particular starting point. Whatever the case, I have had singularly good luck just timing the engine like it was intended, using the ball on the flywheel. It seems like way more work to try and make an easier way to do it, than it would be to just do it the way it was designed. Since it isn't hard at all, and you have your hands about as far away from the spinny things as you can get. Rather than purposely forcing yourself to get right into the danger zone. You could print out a degree wheel from the interweb, and make your marks from there, (it sounds like you have the engine apart) the beauty of this method is you can cut to any diameter that you need and the marks will still be accurate. Then again there would be the method of measuring the diameter of the flywheel at the point the ball is at, then determining (you would have to look this up) what space to make the next degree mark on the flywheel itself, and engrave the numbers in. There are a number of ways to beat this horse. I just like using the ball......

Last edited by brokenhead; 11/10/2013 2:38 PM.