1. Engine power decreases.
When the car runs at a temperature above 35°C, under wind or with a heavy load and low speed, the engine overheating becomes more serious, further reducing the inflation coefficient of the engine, resulting in a reduction in the amount of fresh mixture entering the cylinder, and the average cylinder effective pressure decreases and engine power decreases.
2. Fuel consumption increases.
When the engine temperature is too high, the lubricating oil leaking into the cylinder will easily form colloidal coke under the condition of high temperature and lack of oxygen. Coke will collect on top of the piston, on the combustion chamber wall. valve top and spark plug, forming hot spots, triggering hot ignition in the engine, resulting in abnormal combustion, which can easily cause deformation or even fissure or deformation of the engine block and cylinder head, and also easily burn the cylinder gasket, resulting in a drop in cylinder pressure at the end of compression and an increase in fuel consumption.
3. Mechanical parts are worn.
Lubricating oil will oxidize and deteriorate due to excessive temperature. Colloids and sediments will adhere to the friction surfaces of piston rings, cylinder walls and other parts, reducing thermal conductivity. The viscosity of the lubricating oil decreases, the oil pressure decreases, and the lubricity worsens. The strength of the oil film on the cylinder wall weakens under the influence of impact load, thereby worsening the wear of machine parts.
Detailed information:
Engine overheating will cause a series of vehicle failures, and the cooling system is the first part to bear the brunt. Excessive engine piston temperature will also cause cylinder lock failure. Additionally, the lifespan of seals and some internal parts will be significantly reduced. Starters, generators, regulators and other external equipment can also be easily burned and discarded.
In order to prevent the engine temperature from becoming too high, regular vehicle maintenance is necessary. First of all, it is necessary to keep the exterior of the cooling system clean. Next, the vehicle's water tank and antifreeze must be cleaned. sufficient. Finally, it is necessary to prevent the engine from running under heavy load if it lasts too long, this can effectively avoid unnecessary trouble and improve driving safety.
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