Learn how to remove carbon deposits and make your vehicles more efficient. Carbon deposits are mainly due to the colloidal substance produced by insufficient combustion of gasoline. Both internal combustion engines produce carbon deposits, but vehicles with direct in-cylinder injection are more likely to produce carbon deposits because of their fuel injection principle that leads to inadequate combustion. The lack of manifold injection oil and gas mixing in the direct injection engine will result in insufficient combustion around the combustion chamber and more carbon deposits at the air intake.
Excessive carbon build-up can cause a range of problems for the engine. Common ones include increased fuel consumption, reduced power, and unstable acceleration. In severe cases, carbon deposits can cause super knocking and damage to pistons and valves. In addition, the gelatinous substance that forms around the piston can be scraped off by the piston ring, blocking the return hole of the third piston ring, preventing the lubricating oil from flowing back into the oil pan, resulting in oil burning. When carbon deposits accumulate too thick on the top of the piston, the gasoline injected into the combustion chamber can ignite before the spark plug ignites, causing detonation. In the event of a low-speed pre-ignition, the piston may also shatter and require major repairs.
In order to clean and prevent carbon deposits, the following measures can be taken: For engines with heavy carbon deposits, repair cleaners can be added to the fuel tank and multiple drives can be carried out to clean the combustion chamber and piston rings. For carbon deposits at the valve position, the intake air duct can be removed and cleaned using walnut sand blasting. The cleaning of the throttle valve is relatively simple, just remove the throttle valve and wipe it clean. However, it is not recommended to use the hanging bottle cleaning method, because its effect is not obvious. You can choose a suitable detergent for maintenance during daily maintenance to reduce the amount of carbon deposit.
In summary, understanding the causes of carbon deposits and taking appropriate cleaning measures can prevent and remove carbon deposits and keep the engine running properly.
Taking the EA888 engine with serious carbon deposition as an example, the following methods can be used for cleaning:
Combustion chamber cleaning: Fill the tank with a restorative cleaner containing Stapro PNF technology and run it several times. This cleans the combustion chamber and piston rings, and penetrates to clean the carbon deposits.
Valve position cleaning: Remove the intake air duct and clean it by sandblasting walnut sand. Walnut sand is a kind of metal grinding and polishing product, through the friction between high-pressure gas and walnut sand, the carbon deposits on the air gate and the intake pipe wall are sprayed down, and at the same time, the new walnut sand is continuously sprayed in to retract the dirty walnut sand.
Throttle cleaning: Remove the throttle valve and wipe the valve clean with a rag and cleaning agent. After cleaning, use testing equipment for matching and adjustment according to the needs of the model.
It should be noted that it is not recommended to use the method of cleaning with hanging bottles, because its effect is not obvious. In the usual maintenance process, it is recommended to use a cleaner containing Si Youpu PNF technology or a carbon-free combination of the world to effectively clean carbon deposition from the new car, so as to reduce the amount of carbon deposition and have a better maintenance effect on the engine. #Cleancarbon##司有普pnf技术#
