Okay, put the finger in #1 and pushed the fan around. I don't know exactly how many revolutions it takes to get to TDC but it seems like more than one. Anyway, did feel the push on the finger and that was satisfying, in a mechanical way. But the first time I got to TDC on the flywheel I passed it by about three inches. I kept going round and round, and finally I got to TDC again but was about an inch past the pointer.
I'm puzzled, though. When the finger first feels the push on it, it seems like there are three or four cylinder "pushes" past that. I don't know if I should check the pulley right after the first or if I have the entire number of pushes to hit DC. The pulley days DC and not TDC. I assume it's the same thing.
So obviously I'm very close to being right on DC but why the discrepancy? Is it okay to be an inch off? Probably not. And my right arm is getting bruised by a nasty little sharp corner of radiator every time I move the fan. I know. Don't say it!
Anyway, I'm very pleased that I figured out how to get TDC, but I need to fine tune it a bit more.