When doing this, oil poured out the open end of the canister
Of course it did- - - - -the inlet to the canister is near the middle, and the canister fills all the way to the top while the engine is running. Gravity is going to let it drain until the oil level in the canister reaches the inlet fitting. If this is a newly-built engine that's been assembled properly, you've either got a bad oil pump or there's a major pressure leak somewhere. I'd start by checking the relief valve in the pump to see if it's jammed in the open position. It's time to at least drop the oil pan and look for obvious problems, or turn the pump without running the engine and try to figure out where the oil is going. The engine is probably salvageable now- - - - -if you keep running it with low/no oil pressure, it won't survive very long.
Jerry
