Efficient cleaning of engine carbon deposits

Engine carbon deposits are gelatinous substances produced by incomplete combustion of fuel. Long term accumulation can lead to problems such as decreased power, soaring fuel consumption, idle shaking, and in severe cases, damage to core components such as pistons and valves. The correct method should be selected for cleaning carbon deposits to avoid secondary damage caused by blind operation. Here is a scientifically efficient cleaning guide.

1、 Identify the location of carbon deposits first: precise cleaning is more efficient

Carbon deposits are prone to accumulate in three key areas and require targeted treatment. One is the throttle valve. Carbon buildup can affect the intake volume, leading to unstable idle speed, which is common in vehicles that drive at low speeds for a long time; The second is the fuel injector, where carbon buildup can block the fuel injection holes, causing poor atomization and directly affecting combustion efficiency; The third is the combustion chamber and piston top. Excessive carbon accumulation will compress the combustion chamber space and increase the risk of detonation. It can be preliminarily judged through the symptoms of engine failure, such as idle shaking, which is mostly caused by carbon deposits on the throttle valve, and weak acceleration, which is mostly related to carbon deposits on the fuel injectors or combustion chambers.

2、 Efficient cleaning method: Select the right solution according to the scene

Adapt to different cleaning methods based on the degree and location of carbon deposition. Mild carbon deposits can be cleaned without disassembly, such as using high-quality fuel additives (PEA components are preferred). After adding them, driving at high speed for 20-30 kilometers can use fuel to flush the carbon deposits on the fuel injectors and combustion chambers, which is suitable for daily maintenance; It is recommended to disassemble and clean the throttle valve for carbon buildup. After disassembling the throttle valve, wipe it with a special cleaning agent. After cleaning, idle learning should be carried out to avoid abnormal intake volume; Heavy carbon deposits (such as carbon deposits in the combustion chamber with a thickness exceeding 0.5mm) require cleaning with walnut sand or dry ice. The carbon deposits are impacted by high-pressure media, resulting in high cleanliness and no damage to components, making it suitable for deep cleaning of old vehicles.

3、 Cleaning precautions and prevention points

Attention should be paid during cleaning: avoid using strong acid and alkali cleaning agents to prevent corrosion of engine components; If there is short-term shaking after non disassembly cleaning, it is a normal phenomenon and can be relieved after high-speed driving. Preventing carbon buildup is more crucial: firstly, adding high-quality fuel to avoid aggravating carbon buildup with inferior fuel; Secondly, regular high-speed driving is used to wash away carbon deposits through airflow; Thirdly, regularly replace the air filter according to the manual requirements to ensure smooth air intake; Fourthly, avoid frequent cold start and immediately shut down to reduce incomplete combustion.