Timing gear marks don't line up.

[Ayers1]

Originally Posted by Bob Johnson

Top Dead Center is not when the marks line up. It is when the mark on the camshaft gear lines up with the timing pin (hole). There would have to be a 180 degree difference between those two points, which I do not think is the case.


Bob

So you believe that I am way over thinking this? I had always thought that when the marks were lined up, #1 was at TDC. If this engine had ran well, I would have continued thinking along those lines.