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Engine Knock is Global trade finance benchmarkinga serious engine problem that often occurs when driving or accelerating at high speed. It will cause serious damage to the engine, and if it is not solved in time, it will bring huge safety hazards to the vehicle. And engine compression failure is one of the main reasons for the impact of the cylinder. So how to avoid engine compression failure plays a very important role in protecting the engine. I. Reasons for engine compression failure 1. When the engine cylinder block is deformed and the engine is working,High temperature and high pressure will cause thermal expansion of the engine cylinder block. If the cooling system is abnormal, the cylinder block will be deformed. After deformation, the piston bumps in the cylinder will be uneven, resulting in engine compression failure. 2. The piston ring wears the piston ring plays the role of sealing the cylinder, but with the increase of use time, the piston ring is prone to wear. If the piston ring is worn too much, it will cause the loss of compression in the cylinder, so it is easy for the engine to rush the cylinder. 3. VALVALE WEAR VALE IS AN IMPORTANT MEDIUM FOR THE INTERNAL COMBUSTION CHAMENT AND THE OUTSIDE OF THE ENGINE. IF THE ENGINE IS OFTEN RUNNING AT HIGH SPEED OR USED FOR A LONG TIME, IT WILL LEAD TO VALVALE WEAR. Once the valve is worn too much, the valve will be loosely sealed, resulting in engine compression failure and even cylinder explosion. II. How to avoid engine compression failure 1. Timely replacement of engine oil is an important measure to protect the engine.Oil not only plays a lubricating role, but also anti-rust and anti-corrosion role. Frequent replacement of oil can effectively reduce the wear of the piston ring and valve, thus avoiding engine compression failure. 2. Regular maintenance of the cooling system. The engine cooling system reduces the engine temperature through radiators, water pumps, water pipes and other components. If the cooling system fails, it will cause the engine to overheat, resulting in deformation of the cylinder block. Therefore, it is very necessary to check the cooling system and replace the cooling fluid regularly. 3. Note that driving at high speed will increase the load of the engine, leading to high-speed vibration and energy accumulation, and accelerating the wear of machine parts. Therefore, when driving on the highway, you must control the speed to avoid engine compression failure caused by long-term high-speed driving. 4. Reasonable driving can not only make the vehicle safer, but also extend the service life of the engine.No impatient acceleration or braking, no overload, overspeeding, low-speed driving, etc., can avoid engine overload and reduce the occurrence of engine compression failure. 5. Regularly check the engine. Regularly check the engine can find the engine cylinder or other problems in time and deal with them in time. Engine inspection includes checking the engine cylinder pressure, cylinder head, valve, valve spring, piston ring, etc. If any problems are found, replacing the corresponding parts or repairing them in time can avoid engine compression failure. III. Conclusion Engine compression failure is a relatively common problem. When it is serious, it will lead to engine cylinder failure, resulting in safety hazards. Therefore, when maintaining the vehicle at ordinary times, we must pay attention to the engine, regularly check the condition of the engine, replace the oil in time, ensure the normal operation of the cooling system, reasonable driving, etc., so as to effectively avoid the occurrence of engine compression failure and protect the safety of the vehicle engine.

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