How to clean the carbon deposits in the exhaust pipe
1. Fill with high-quality gasoline
Impurities such as waxes and colloids in gasoline are It is the main component of carbon deposits, so gasoline with high cleanliness has a weaker tendency to form carbon deposits. In order to ensure the cleanliness of gasoline, some car owners add gasoline detergent to gasoline. This can effectively prevent the formation of a carbon deposit layer on the metal surface, and can gradually activate the original carbon deposit particles and slowly remove them, thereby protecting the engine from damage. However, you must be careful when adding gasoline detergent. If you add fake and inferior products, you will get the opposite effect.
2. Do not idle for a long time
Long idling time will take longer for the engine to reach normal temperature. After the gasoline is sprayed on the back of the throttle, it evaporates more slowly, causing carbon deposits. It was also born from this. At the same time, when idling frequently, the air flow entering the engine is small, so the flushing effect on carbon deposits becomes very weak, which will promote the deposition of carbon deposits.
3. Run at high speeds
Try to increase the shifting speed of manual transmission cars. The purpose of running at high speeds is to use the flushing effect of airflow on the intake duct to prevent carbon deposits. In addition, increasing the gear shifting speed is similar to running on high speeds. Changing the gear shifting from 2000 rpm to 2500 rpm can not only effectively prevent the formation of carbon deposits, but also improve the power of the car and avoid Protect the engine from knocking caused by too low shifting speed.
4. Use fuel cleaning and protective agent
It is quite simple to use cleaning and protective agent to clean the engine. For specific usage methods and precautions, please refer to the product instructions. Since the colloid cleaned from the fuel tank, fuel pump filter and fuel pipe will precipitate in the fuel filter, the fuel filter (gasoline grid) must be replaced in time after cleaning without disassembly. It needs to be reminded again that since the chemical cleaning components in the cleaning agent have a certain corrosive effect on the rubber oil supply pipeline, when using this method, you must pay attention to the use cycle and interval, otherwise it will accelerate the aging of the fuel rubber oil supply pipeline. and corrosion.
5. Disassembly and cleaning
“Disassembly and cleaning” is simple and labor-saving, just use it in the correct way. However, for engines with serious carbon deposits, this method is insufficient and cannot achieve the purpose of complete cleaning. After “no-disassembly cleaning”, if the engine performance is still poor and the technician tells you that the problem is caused by too much carbon deposits in the valves and cylinder, then you have to disassemble the engine to solve the problem.
After the engine is disassembled and reassembled, its movementThe strength and sealing performance will be inferior to the original ones, so under normal circumstances, cleaning the carbon deposits in the engine cylinder should not be done frequently. As a last resort, you must go to a regular repair shop, otherwise the engine performance will be greatly reduced.
6. Carbon deposit cleaning agent
Can be used to clean carbon deposits, but thorough cleaning is not possible. If this type of cleaning agent is used frequently, it will cause damage to the rubber pipeline. For corrosion and aging problems, cleaning can usually be done once a year or every 20,000 to 30,000 kilometers, depending on the engine condition.
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