.
One main reason for low oil pressure
(1) the oil viscosity is too low;
(2) Working oil pump failure;
(3) primary bearing or connecting rod bearing clearance is too large;
(4) the oil strainer or oil strainer clogging of the filter cartridge;
(5) the elastic force of the pressure limiting valve and the valve spring oil return attenuated or broken, or the bonding Mifengbuyan valve, resulting in pressure relief oil;