Oil pump internals
Am I correct to assume that the valve that appears to be stuck should actually move?
The steel piston is the pressure regulator valve. It is closed by the spring pressure until a certain value then it unseats to bypass oil to limit the maximum oil pressure. It needs to move freely in the bore.
Good luck,
Steve
The steel piston is the pressure regulator valve. It is closed by the spring pressure until a certain value then it unseats to bypass oil to limit the maximum oil pressure. It needs to move freely in the bore.
Good luck,
Steve
I'll be putting a new oil pump in tomorrow and hoping for something about 0 PSI

