Timing gear marks don't line up.

[Dick M]

Sometimes the it is hard to find the dimple on the timing gear for the timing pin. You can grind the timing pin to a sharper point and it will make the dimple easier to find.

The above answers are correct. The dimple on the crank gear and the dimple on the cam gear are only for timing the crank to the cam. They are not for
timing the engine..