Low oil pressure?

brian6pac said

I'm not telling you to disagree, I trying to get you to see the big picture, the book is wrong and has been printed over and over and nobody changed it, so forget the book and look at the diagram. Your not a dumb guy but you refuse to acknowledge the book is wrong.

Take the filter off and put a U pipe there the oil still goes through the engine, take the plug out and plug the 2 holes going to the filter, the oil goes through the engine, pretty simple.

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Here is an example that maybe will shed some light.
A friend of mine build a new home and had his water pipes plumbed in a circular loop from the water heater.
The idea was that even though no water faucets are open and using water, the water is able to continually flow through the water heater and around the house to keep hot water readily available.
This way when you opened the tap to get hot water there was not a long delay for the hot water to get to the faucet. The system is closed but it is looping under pressure.