What are the causes of excessive oil pressure?

[DiElisa]

Causes of excessive oil pressure: 1. The oil viscosity is too low; 2. The oil strainer screen or oil filter element is clogged; 3. The pressure relief valve or return valve spring has weakened or broken, or the valve sealing surface is not tight, causing oil leakage and pressure relief; 4. The main bearing or connecting rod bearing clearance is too large; 5. The oil pump is not working properly. When encountering excessive oil pressure, first use the oil dipstick to take out oil from the crankcase and feel it by hand to check if the oil viscosity is too high. If there is no abnormality, then check if the pressure relief valve or pressure relief spring in the oil pump cover is too strong. Clean and adjust the pressure relief valve according to specifications. If all the above are in good condition, check whether the main oil passage in the cylinder block is blocked or whether the oil pressure gauge or sensor is short-circuited.