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cas3 · 11-25-2019, 11:53 PM

jseery has it, your "sump" line needs to be plugged if no filter, not returned to the oil pan. the bypass system uses that line for the filter, but it is restricted so that real pressure is sent off to the rest of the motor. you have only run it a short bit, i would guess some oil was getting to the bearings and hopefully you are ok yet. plug it, run it, and see what you get

11-25-2019, 11:53 PM	#8
cas3 Senior Member Join Date: Jan 2011 Location: sw minnesota Posts: 4,573	Re: 8BA Low Oil Pressure jseery has it, your "sump" line needs to be plugged if no filter, not returned to the oil pan. the bypass system uses that line for the filter, but it is restricted so that real pressure is sent off to the rest of the motor. you have only run it a short bit, i would guess some oil was getting to the bearings and hopefully you are ok yet. plug it, run it, and see what you get