it worked
Here's a look at my rig to mark crank location on the case. The ruler is clamped to the flat on the crank so it stays consistent
I set the crank at 17.5 deg BTDC and used the mark I made showing the 600 RPM firing location to mark the crank location on the mini rotor - this way the fan marks don't matter if something shifts. This turned out to be a good idea - later on, the fan started shifting once the motor fired up
Once I had a mark on the rotor, I used my new timing tool to locate the crank in relation to the rotor. Then I used a 02 sensor socket to bang the rotor onto the taper of the crank so it would stay until I could nail it down with an impact
I think the next step is going to be making a more secure version of this fan. The screeching sound at the end of the video is the sound of the fan dancing around on the rotor. It's shifting around all over the place. I'll either have to epoxy it together or make a new more secure version. Either way, the current fan design is super efficient - I was revving it a bunch on the stand and I don't think I got over 200 deg F
hmm..