How Long Will It Take for an Engine to Suffer Cylinder Scoring After Reaching 100 Degrees Celsius?

[McGeorge]

After the engine coolant temperature reaches 100 degrees Celsius, cylinder scoring may occur within 1-2 kilometers of driving. Below are detailed explanations regarding engine cylinder scoring: Causes: Engine cylinder scoring refers to the appearance of noticeable longitudinal mechanical scratches and abrasions on the inner wall of the cylinder within the movement range of the piston rings. In severe cases, adhesive wear may occur, leading to difficulties in engine starting or spontaneous stalling. The root cause of cylinder scoring is the inability to form an oil film between the cylinder wall and the piston rings or pistons, resulting in poor lubrication or even dry friction. Prevention: The engine must undergo a proper break-in period. Correctly select the clearance between the piston skirt and the cylinder liner, as well as the end gap and side clearance of the piston rings. Maintain the coolant temperature within the normal range of 70°C to 95°C to avoid engine overheating. Avoid overloading the engine, starting it without sufficient coolant, and ensure regular maintenance of the air filter to prevent dust from being drawn into the cylinder.