Greg, your questions are absolutely no problem at all. But, now you have me confused.
You attached two pics above. In the picture on the left, I only see one mark on the pulley/harmonic balancer. Is there another one?
In pic 2, there are several marks. They all indicate different degrees of timing.
If you look below, I copied your second pic. At the very bottom, it says BTC, which means before top center. As you work your way up, it first indicates 30 degrees, then 20 degrees, and then 10 degrees. If you continue a little further, you should find 0 degrees or TDC.
Sorry for the pathetic drawing. LOL, I didn't know how else to point up further.
Let me know.
Joe
See pic below.
Image (Click to make bigger)
Sunday, July 30th, 2023 AT 8:06 PM