The reasons why a car smokes when adding oil are:
1. The smoke is black smoke, caused by poor combustion in the engine when the mixture is too rich.
2. It is the white smoke, lack of water in the water tank and high temperature that cause the cylindrical mattress to be poorly sealed, causing leakage of water inside the engine, or the gasoline added, contains a large amount of water. Methods to deal with smoke in the car: 1. Check the engine block and cylinder gasket for damage, and check whether there is water in the fuel tank. 2. Consult the car manual and add gasoline with the correct label in strict accordance with the manufacturer's regulations.
3. Always check the degree of aging of the carburetor and other parts. Carburetor cars are different from EFI cars andrequire frequent maintenance and adjustments. Check the cylinder line every 30,000 miles and check the spark plug every 10,000 miles. If any problem is found, replace it in time.
There are generally three smoke situations. (1) Black smoke Why does a diesel generator emit black smoke when it is working well? The black smoke is caused by the diesel not being completely burned, forming black carbon and being discharged? , which actually leads to the appearance of black smoke. There are five factors causing black smoke: piston rings, cylinder liners, etc. are worn out. Once the piston rings and cylinder liners are worn, the compression pressure is insufficient, causing the ratio to be normal. The mixture changes at the end of the cylinder's compression stroke, causing the fuel to mix without oxygen. Burns under certain conditions and produces car depositsbone. The fuel injector is not working properly. The fuel injector does not atomize or drip oil, so the fuel cannot be completely mixed with the air in the cylinder and cannot be completely burned. The black smoke phenomenon caused by fuel injector malfunction is more obvious when the diesel engine is running at low speed. Since the air intake vortex in the cylinder is small during low speed operation, the possibility of oil droplets or oil jets scattered by the air flow is reduced and the droplets Oil remains longer, making it easier for black carbon discharges to form. The shape of the combustion chamber changes. The manufacturing quality of the combustion chamber shape does not meet technical requirements. If the compression gap is too large or too small and the piston is installed in the wrong positionon, the form of combustion. The chamber will be changed, thereby affecting the quality of the fuel and air mixture and worsening the fuel combustion conditions. Improper adjustment of the fuel supply advance angle (1) The fuel supply advance angle is too large and the fuel is injected into the combustion chamber prematurely. Since the pressure and temperature in the cylinder are low at this time, the fuel cannot ignite and burn. When the piston rises, the cylinder reaches a certain pressure and temperature, the combustible mixture burns. (2) The fuel supply advance angle is too small, and the fuel injected into the cylinder is too late. Part of the fuel does not have time to form a combustible mixture and is separated or discharged. The fuel discharged with the exhaust gases is decomposed. at high temperature, forming black smoke. 5. Carbure supplynt is too large, which increases the amount of oil entering the cylinder, resulting in more oil and less gas and incomplete combustion of the fuel. In addition, excessive workload, poor fuel quality and low operating temperature can also cause black smoke from the exhaust. (2) Blue smoke Why does blue smoke appear? This is related to lubricating oil. The lubricating oil enters the cylinder and is heated and evaporates into blue oil vapor. Blue smoke is emitted with the exhaust gases. The main reasons are: the air filter is clogged, the air inlet is not regular or the oil level in the oil basin is too high (oil bath air filter). Lubricating oil is mixed with fuel. The piston rings match each other and the cylinder gasket near the oil passage from the body to the cylinder head is burned out.destroy. Pi segment wearston, pistons and cylinder liners (3) White smoke White smoke is caused by the white smoke emitted from the exhaust pipe of the diesel generator set when it is just started or when it is cold. It is formed by evaporation. of oil and gas due to the low temperature in the cylinder of the diesel engine. This is especially true in winter. If the exhaust pipe still emits white smoke when the engine is hot, the diesel engine is considered defective. The main reasons are: the cylinder liner is cracked or the cylinder seal is damaged, cooling water enters the cylinder, and water mist or water vapor is formed when exhaust. Fuel injector has poor atomization and oil dripping. The fuel feed advance angle is too small. There is water and air in the fuel. The pressure of the injection pumpThe fuel supply is too low or the piston, cylinder liner, etc. is damaged. are severely worn, resulting in insufficient compression force.