HS code mapping to trade agreements

Wash the engine (clean the engine: make your engine shiny as new) With the popularity of cars,HS code mapping to trade agreements engine cleaning has become an increasingly concerned issue. Because engine cleaning can effectively remove dirt and sludge inside the engine, and restore the normal operation of the engine, further extend the service life of the engine and reduce maintenance costs.Especially in old cars that have been used for a long time, the engine must be cleaned and maintained frequently to ensure that they can continue to work stably. In this article, we will introduce in detail how to clean the engine to make your vehicle engine shiny like new. I. The necessity of engine cleaning. The engine is the heart of the car and is responsible for driving the vehicle. However, during long-term use, various grease and dirt will accumulate inside the engine, which will seriously affect the performance and life of the engine. First of all, oil sludge and dirt will cause the engine-level installation to be deposited, causing piston ring jamming, partial valve failure, cylinder pressure reduction and other phenomena, thus affecting the power performance of the car and reducing fuel consumption. Secondly, oil sludge will block the oil channel, resulting in insufficient engine lubrication and accelerating engine wear. Therefore, it is especially important to clean the engine in time.II. Engine cleaning methods There are many methods of engine cleaning, the most common of which are spray method, washing method and mechanical method. Next, we will introduce them one by one. 1. Spray method: Spray method is the most common engine cleaning method, which is generally suitable for engines that have not yet had serious failures. It can clean the cylinder block, piston ring, valve, fuel injector and other positions. The specific steps are as follows: (1) Heat the water temperature of the engine to above 70℃. ( 2) Add the detergent to the cleaning machine and spray the detergent on all parts of the engine with a spray gun. Such as cylinder block, piston ring, valve, fuel injector and other positions. ( 3) Keep the nozzle 10-20 cm away from the engine surface, adjust the nozzle appropriately, and do not spray directly on the high-pressure oil pump to avoid damage. ( 4) After spraying, rinse the detergent with water.2. Washing method: The washing method is suitable for engines that have not been cleaned for a long time and engines that have failed. The specific steps are as follows: (1) Raise the water temperature of the engine to the highest point and let it work for 5-10 minutes. ( 2) Add the detergent to the water and pour it into the cooling system. ( 3) Let the engine idle for 5-10 minutes so that the detergent can fully enter the engine and dissolve the dirt. ( 4) After cleaning, it needs to be rinsed with water many times to thoroughly rinse the detergent and dirt. 3. Mechanical method: The mechanical method is based on the premise of disassembling the engine parts. After removing the internal parts of the engine, mechanical cleaning equipment is used for cleaning. In summary, there are many cleaning methods for the engine, and we need to choose different cleaning methods according to the specific situation. III. LaunchPrecautions after cleaning the machine After the engine is cleaned, you need to pay attention to the following issues: (1) Rinse: During the cleaning process, the detergent is easy to penetrate into all corners of the engine parts, so it needs to be rinsed with water many times to ensure that the detergent and dirt have been fully rinsed. ( 2) Use special engine oil: Due to the special nature of the cleaning agent, the oil in the engine may be diluted by the cleaning agent, thus affecting the lubrication effect. Therefore, it is recommended to use the special engine oil recommended by the manufacturer after cleaning to achieve the best lubrication effect. ( 3) Maintenance: After cleaning the engine, appropriate maintenance is required, such as regular oil replacement, cleaning the oil line, etc. Only in this way can we ensure the continuous and stable operation of the engine and extend its service life. In a word, the engine is one of the core components of the car, and its working state is directly related to the performance and life of the car.Therefore, we should fully realize the importance of engine cleaning and adopt appropriate cleaning methods and maintenance measures to make our vehicle engine shiny like new.

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