What Causes Engine Bearing Failure Despite Sufficient Oil?

1 Answers
StHolden
07/30/25 12:50am
Possible reasons for engine bearing failure despite sufficient oil include dirty/thickened oil, diluted oil, and oil pipe leakage. Dirty/Thickened Oil: Prevents the oil pump from properly drawing in and circulating oil, resulting in low or no oil pressure. Diluted Oil: Leaks through engine friction gaps, causing low oil pressure. Oil Pipe Leakage: Reduces oil intake and circulation volume, leading to low or no oil pressure. Solutions: If caused by aged valve seals, disassemble the valve train and valve cover to replace seals. For piston ring damage causing oil burning, engine disassembly and piston ring replacement by professionals is required (higher cost). During repairs, thoroughly clean engine carbon deposits to restore normal operation. As preventive maintenance, regularly clean carbon deposits and use high-quality branded oil for better lubrication, reduced cylinder/piston wear, and extended engine lifespan.
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