My oil pressure dropped from 40-60 psi to 20-40 psi. I changed the oil and found what looks like anti-seize compound on the magnet, and silver and copper-like flakes in the oil. We all know what the flakes are, and my old timer mechanic buddy says the stuff on the magnet is iron. He said steel would be black. We are guessing that a main bearing stuck to the crank, and the metal on the magnet is the bearing bore in the block. Or, a cam bearing stuck to the cam and wore the cam bore away. I cut open the filter and took pictures, I wish I saved some of the magnetic stuff.
Anyway, whoever guesses from the pictures what bearing it is wins the prize, to be announced later.

 

Rocker bearing?

 

any noises?

if the pressure dropped like that im gussing cam bearing..

 

The kind that makes the engine work right??

 

an important one. whats my prize?

 

im guessing the 4th main bearing

 

kanuter valve bearing?


looks like a cam bearing to me

 

Good answer.
For a long time it has had a weird tick,tick,tick.........tick,tick,tick.........tick ,tick,tick, at around 1600 rpm, but nothing new after the oil pressure loss. I think cam bearing would probably be the best case, because it seems like that would be the engine builder's fault, wouldn't it?

So far, you two are tied for best answer.

 

I'm guessing the crank shaft is knocking against something ever so gently.

 

muffler bearing? the kind that requires a left handed screw driver right?