Setting Timing...Ford 3000

[Lamentations]

I must be going blind. While following the steps to set the timing, I hit a roadblock.
The IT manual says "inspection opening of engine rear cover plate".
I can"t see any inspection hole that could line up with the flywheel.
Could someone narrow down where I should be looking?
Thanks.

 

[Ultradog MN]

Right side of the tractor - just behind and above the pan on the bell housing - loosen the screw and the little flap will turn open

 

[Lamentations]

I see it now.
Thanks so much!