I had one of these tools then lost it somewhere. I recall it was like a 3/8" rod with a bend in it. I have some rod stock around so I figured I'd just make one.

My question is, how long is the section that gets inserted into the hole through the flywheel?

I remember that when it was it its correct position at TDC the rod went in all the way to the bend in the tool so you could tell if you were in the right position or not. Thanks in advance.
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