Greetings. Has anyone changed the oil pressure relief valve on a daedong 4a200 engine. I recently tore my engine down and replaced the oil pump as well as Camshaft gear. Both were destroyed. I still don't have enough oil pressure to make the oil pressure light go out. Also does anyone know what oil pressure is supposed to be? I think I have 4 or 5 psi? I may pull off the oil filter housing to see if i can find the relief valve. The parts diagram isn't clear.