Newly inframed engine with high oil pressure

[pearce trucking]

I made a mistake when shimming my oil pump and a couple dimes went through it. It went to 100 psi and then to zero. The dimes held the dogbone closed which stopped it from doing its job. Then the dime snapped and it was held open, allowing oil to circulate within the pump. I'm with Rawze. The easiest thing to do after you verify pressure manually is to drop the pan, pull the pump, disassemble and inspect it. Sounds like you might have a piece of metal jamming up the works in there.