Re: Break-in gone wrong!
Considering the pump picks up oil and you can see if flowing nicely out of the discharge port of the housing by just turning the gear by hand shows the oil pump is working correctly. This is certainly a mystery.
If it was me I would follow the path the oil flow must travel to verify there's no big opening that would allow the oil to flow so freely you would not see a build of pressure at the sender port.
Ronnieroadster
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I use the F word a lot no not that word these words Flathead , Focus and Finish.
"Life Member of the Bonneville 200 MPH Club using a Ford Flathead block"
Owner , Builder, Driver of the First Ford Flathead bodied roadster to run 200 MPH Record July 13, 2018 LTA timing association 200.921 in one and a half miles burning gasoline.
First ever gas burning Ford flathead powered roadster to run 200 MPH at Bonneville Salt Flats setting the record August 7th 2021 at 205.744 MPH
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