The engine is the “heart” of the car. If it is used for a long time, problems may occur. In order to play a preventive role and reflect the concept of “repair by maintenance”, timely inspection and maintenance are required. Therefore, this short article focuses on the maintenance of car engines. Give a brief explanation.
The maintenance of the engine should be maintained from three aspects: engine fuel system cleaning and maintenance, engine lubrication system cleaning and maintenance, and engine cooling system cleaning and maintenance.
Engine fuel system cleaning and maintenance
Carbon deposits are generated on the fuel injector, spark head, valve, cylinder top, piston working surface and piston ring groove when the automobile engine is working. Over time, the coke deposits appear as colloidal deposits, which will reduce the volume of the combustion chamber and deteriorate the work efficiency; many uneven hot spots appear during the combustion process, causing the mixture to burn in advance, resulting in a decrease in efficiency and incombustibility. Complete, increased exhaust gas emissions; poor fuel supply and ignition, unstable idling, misfire, and knock; blockage of piston ring grooves, resulting in poor lubrication of the cylinder body, which in turn pollutes the lubrication system, and blocks the oil circuit and oil filter. Therefore, the engine fuel system needs to be cleaned and maintained. There are mainly two different cleaning methods: one is to directly add the “cleaning agent” to the fuel tank in a certain proportion, and perform internal cycle cleaning in the normal operating state of the car; the other method It needs to be supplemented with special equipment to clean when the engine is idling, * eventually the decomposed carbon colloid will be discharged with the exhaust gas.
Suggestion: After cleaning, the fuel filter element should be replaced in time. This cleaning and maintenance should be done regularly every time the car travels 10,000 kilometers. Be sure to use better engine oil for maintenance.
Engine lubrication system cleaning and maintenance
During the operation of a car, as far as the engine lubrication system is concerned, the deposits of oil, the oxides of the parts and pipes, the particles of metal parts wear, the dust brought from the air, etc. will continuously deposit into sludge, grease, glue, etc. Quality and coke. Over time, these substances form adhesion and accumulation layers on various parts, pipes and valve mechanisms, which will seriously hinder the smoothness of the lubrication system, reduce the heat dissipation function of the mechanical parts, increase the wear of the connecting parts, and reduce the work efficiency. Therefore, the cleaning and maintenance of the engine lubrication system is also particularly important. The specific usage is to pour the cleaning agent into the crankcase, and drain the old engine oil after 5 to 10 minutes of idling.
At this time, the sludge, grease, and carbon deposits in the lubrication system will be fully decomposed and discharged with the old oil, but it should be noted that the oil filter element must be replaced at this time.
Recommendation: This cleaning and maintenance is suitable for use when changing engine oil. After cleaning, you can add engine oil protective agent, which can more effectively increase the service life of vehicle parts and enhance engine power.
Engine cooling system cleaning and maintenance
It is well known that a thick, hard scale will form on the surface of the inner wall of a container of boiling water after a period of repeated use. The same is true for the engine water tank. The heat generated when the engine is running at high speed is sent to the water tank through the water circulation system, and the heat is dissipated by the water tank to ensure the normal working state of the engine. Over time, a thick layer of scale will build up on the inner wall of the water tank. When the scale deposits to a certain extent, it will cause the volume of the water tank to become smaller and affect the circulation of cooling water. Due to the poor thermal conductivity of the scale layer, the engine’s lubrication conditions will deteriorate, and the mechanical parts will be overheated. The normal working gap between the linkage parts cannot be maintained, which will deteriorate the mechanical properties, thereby reducing the engine power and increasing fuel consumption, and even affect life span.
Therefore, it is necessary to clean the engine cooling system once the car has been running for a period of time. This cleaning and maintenance can achieve the effects of descaling, descaling, anti-rust and anti-acid, and the descaling rate can reach more than 85%. The operation is very simple: just add the “cleaning agent” to the water tank, and clean it under the normal running state of the car. After a few hours, drain the waste water in the water tank and add new coolant or antifreeze again.
Suggestion: Such cleaning and maintenance should be carried out at least twice a year.
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Link to this article：Introduction to the steps of cleaning a car engine
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