What Causes Engine Piston Burning?

[McDavid]

Engine piston burning is caused by engine knocking, so it is crucial to prevent knocking combustion in the engine. Severe carbon deposits on the piston top: Carbon deposits on the piston top cause localized overheating and high temperatures. When the localized temperature exceeds the melting point of the material, the piston top will melt and form holes. Hazards of engine piston burning: Piston burning can lead to high-temperature gas leaking into the crankcase, accelerated oxidation and deterioration of lubrication, reduced cylinder sealing, decreased compression ratio, worsened fuel combustion process, and diminished engine power and fuel efficiency. In severe cases, the piston may crack or shatter, damaging components such as the cylinder liner, connecting rod, crankshaft, and engine block.