[mgarblik]

I agree with Steve. If a gallery plug was missing, even with 20W-50 oil, I don't think the engine could maintain 10 PSI at idle. Probably would be zero and maybe 10-15 PSI @ 3000 RPM. Also, there would be valvetrain noise with a plug pushed out. However, just a small sliver of RTV or other debris in or around the check ball and spring in the oil pump would produce your symptoms. Is there evidence of way too much silicone sealer being used or pushed out of the front cover seal or oil pan? That might be a telltale sign.

[1qwerty]

Thanks I have limited knowledge on the engine build
Maybe find a galley plug?

[HWYSTR455]

I think the filter would still fill with oil if a galley plug were missing, but not 100% sure.

To me it sounds like the issue is between the pickup and the filter. And it's pretty much a straight shot.

Oil in pan>pickup>pump>short passage run> filter housing>filter

That stuff is pretty easy to check, not much disassembly involved.


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