'86 951 No Oil Pressure

[RZwetzig]

We had the lower half of the engine rebuilt by LN Engineering and assembled the top half. The "new" engine is now in the car and hooked up enough to turn the engine over with the starter (no ignition on purpose). All is good EXCEPT we are not making oil pressure. We have tried:
Priming the pump
Filling the oil cooler
Removing and inspecting the OPRV
Turning the engine over without the OPRV
The Crankshaft bolt has been torqued to 155 ft lbs

Based upon a Pelican Parts forum we have learned the Crankshaft Timing Gear for the Timing Belt may be installed in correctly. Videos of people installing this gear and the parts diagram are not consistent with respect to the correct orientation of this gear.

So, does the shoulder on the gear face the oil pump/engine or does it face the front of the car? Currently, the shoulder on this car is facing the front and we are not making pressure.

Thank you!