What are the reasons for the drop in oil pressure in diesel engines?

[RyleeMarie]

Reasons for the drop in oil pressure in diesel engines: 1. Insufficient oil quantity, making it difficult for the oil suction plate to draw oil; 2. Sticking of the pressure relief valve plunger steel ball; 3. Low adjustment of the preload force of the pressure relief valve spring leading to deformation and failure of the spring; 4. Severe clogging of the filter, obstructing smooth oil flow into the main oil passage; 5. Severe wear of the bearing bush causing large-scale peeling damage and excessive clearance; 6. Oil dilution. Functions of diesel engines: 1. Withstanding gas force and inertia force; 2. Supporting the weight of all machine components; 3. Forces from through bolts and connecting bolts; 4. Generating thermal stress due to varying temperatures in different areas.