What are the symptoms of engine bearing seizure?

[LaAngelina]

Engine bearing seizure symptoms: Severe lack of lubrication oil during engine operation; Degraded engine oil fails to provide lubrication; Low or no oil pressure while the engine continues running; Presence of bearing alloy fragments in the engine oil within the crankshaft case; Abnormal noises during engine operation; Prolonged high-speed and high-load conditions deteriorate bearing lubrication, potentially leading to burning. Diagnosing engine bearing seizure: If the engine runs without oil or with insufficient oil, the crankshaft may suddenly lock up, directly indicating bearing seizure. Abnormal noises: With oil present but prolonged operation causing bearing wear, the engine may still run while producing a distinct knocking sound (tata-ta). This noise correlates with engine speed - increasing with higher throttle input.