We recently installed my rebuilt 418 and the pressure stays at 43lbs at all times. We expect the high output
oil pump to produce closer to 65lbs. My engine build suspect it's one of 2 things.
1. There is an air bubble in the
oil pressure line.
2. The spring valve on the
oil pump is set incorrectly.
In order to eliminate option 1, I need to crank the motor and bleed the oil pressure line at the gauge. Loosed the oil line with a rag ot remove the air.
That's what we are planning unless there is a better way.
Dan