How to judge the burning of engine oil and the solution

Light blue smoke can be seen at the tail During engine operation, light blue smoke is often seen at the tail of the exhaust muffler, and the organic oil is consumed too quickly. The cause of the failure may be: the oil level is too high; The cylinder compression pressure is lower than the specified value; The gap between the piston, piston and cylinder barrel increases.

First of all, check whether the oil level is too high, because the oil level is too high, which can easily cause the oil to go up. When checking the oil level, do not check the engine just after it stops, and check it again after 10 minutes of shutdown. If the oil level is too high, the excess oil should be released in time.

If the oil level is normal, for engines that have been used for a long time, check the possibility of increasing the gap due to the compression pressure of the cylinder and the wear of the piston, piston ring and cylinder, and the increase in the gap will cause the oil to go up. After inspection, the cylinder pressure is lower than the specified value, and the piston should be further checked for carbon deposition, excessive wear or even loss of elasticity. If this happens, the piston ring should be cleaned or replaced.

When the wear of the cylinder barrel is serious and the gap between the piston and the cylinder barrel exceeds the specified value, the cylinder is bored and the piston is replaced. For engines that have just undergone an overhaul or have had their piston rings replaced, it is common for the oil to be channeled due to the wrong filling of the inner and outer cuts (or chamfered corners) of the piston rings. If this happens, the piston ring should be reinstalled.

Hello, you can hit the car in the morning when the car is cool, to see if the exhaust pipe is emitting blue smoke, if there is blue smoke, it is to burn the engine oil. If you want to solve this situation, you have to overhaul the engine.

Causes of burning engine oil and how to prevent it.

The engine oil itself has a certain amount of consumption, and excessive consumption is the problem of burning engine oil. There are many factors that affect the burning of engine oil, such as: fuel quality, driving conditions, driving habits, maintenance habits, etc., the following reasons will aggravate the oil consumption and cause the dust friends to burn the engine oil, so that the vehicle appears:

1. Carbon deposition occurs in the combustion chamber, which makes the gas ring of the piston ring stuck, and the sealing is poor.

2. Oil sludge is generated in the lubrication system, and the oil sludge blocks the oil return hole of the oil ring and weakens the oil scraping performance.

3. Wear occurs between the piston and the cylinder wall.

4. The valve seal is corroded and aging, and the sealing performance fails.

In addition, cars now have crankcase ventilation systems (exhaust valves), which can also exacerbate oil consumption if there is a problem.

Burning engine oil means that the engine oil enters the combustion chamber of the engine and participates in the combustion withering together with the mixture. The phenomenon of "burning engine oil" in the vehicle will damage the vehicle's oxygen sensor too quickly, resulting in an increase in carbon deposition in the combustion chamber, unstable idling, weak acceleration, increased fuel consumption, and excessive exhaust emissions.

Precautionary measures for burning engine oil:

1. Use high-quality engine oil

Engine oil is very easy to corrode and age in a long-term high temperature state, resulting in the oil film becoming thinner, and it is easier to escape to the combustion chamber to participate in combustion, so the use of high-quality engine oil can greatly delay this phenomenon.

2. Pay attention to the cleanliness of the fuel circuit

Fuel in the combustion process is indispensable to produce carbon deposits, and carbon deposits are the root cause of some car failures, such as the aging of valve seals, piston cylinder wall clearance, etc., all of which have a direct or indirect relationship with the formation of carbon deposits.

1.When the cold car starts blue, the first time you start the vehicle every day, you find that the car exhaust pipe emits blue smoke, and after a while, it disappears, and the exhaust becomes normal, which means that the car has a slight burn oil.

2.Blue smoke is emitted during acceleration, and when the car is driving, a large amount of blue smoke is found from the exhaust pipe, indicating that the engine burns oil.

3.The inner wall of the exhaust pipe is very black, check the inner wall of the exhaust pipe, wipe the inner wall of the exhaust pipe hole with white paper, and check whether the inner wall of the exhaust pipe is black, and the black means that the car has the phenomenon of burning engine oil.

Answer: Blue smoke is emitted from the exhaust pipe, and pulsating blue smoke can be seen coming out of the oil port of the dispenser. It is judged to be burning engine oil.

This phenomenon shows that the exhaust gas after the oil combustion leaks into the crankcase, and from the oil port pulsation, can be preliminarily determined that the piston connecting rod group is not well filled, the piston connecting rod group such as the piston and the cylinder wall gap is too large, the piston ring elasticity is small, locked or counterpart, piston ring wear makes the end clearance, the side gap is too large, etc., will use the right piston ring to produce pump oil phenomenon.

From the appearance of black smoke and carbonized powder in the exhaust pipe, it can be judged that the engine oil is burned.

Methods for judging oil combustion:1. There is a standard for burning engine oil.

If the fuel consumption of the engine is less than liters per 100 kilometers, this is actually a normal range, but if it exceeds this standard, it is to burn the oil. 2.In other words, it is normal for the amount of oil to be reduced to below and the consumption greater than that belongs to oil burning.

So, how do you check if the fuel is burning? After each drive, pull out the dipstick and take a look. Generally between the highest and lowest values.

3.Blue smoke can be judged by the color of the smoke. When you burn the oil, if there is no smell problem, you can smell a strong oily tomato.

These are all disadvantages.

Judgment method.

1. When the car is first started in the morning, the exhaust pipe appears a thick blue smoke, and the blue smoke disappears after a while, and this situation may not occur again on the same day, but this phenomenon occurs again on the second and third mornings, which indicates that the vehicle has burned engine oil, which is called burning engine oil in a cool car.

2. When the vehicle is driving or on the spot, the exhaust pipe emits a large amount of blue smoke when the driver slams on the accelerator, which indicates that the phenomenon of the vehicle burning engine oil has been more serious, which is called accelerating the burning of engine oil.

3. In addition to the blue smoke coming out of the exhaust pipe, you can also see pulsating blue smoke coming out of the oil port of the processor. In this case, the damage to the engine is already severe.

Burn the oil"This is when the oil enters the combustion chamber of the engine and participates in the combustion along with the gas mixture. Vehicles appear"Burn the oil"The phenomenon will cause the vehicle oxygen sensor to be damaged too quickly, resulting in an increase in carbon deposition in the combustion chamber, unstable idling, weak acceleration, rising fuel consumption, excessive exhaust emissions and other adverse consequences. In the traffic conditions of frequent starts and stops, many car owners reflect that they love their cars"Burn the oil"Then, it is necessary to understand the hazards, identification and avoidance methods of burning engine oil.

Maintenance method: 1. The habit of regular inspection of the car, daily maintenance is a must, and we must check the corresponding frequency according to the mileage of the vehicle and the driving environment, so as to "prevent problems before they occur".

2. Use better quality engine oil, and the stability of high-quality engine oil is also relatively good, which can maintain appropriate viscosity at high temperature and high speed of the engine and reduce oil consumption. Moreover, the oil should be added in accordance with the norms, not too little, not too much. Burn the oil

3. Regular maintenance and replacement of engine oil or oil filtration. In general, the maintenance interval is 5000 km.

This is mainly to see if the exhaust pipe is emitting blue smoke, less than the maintenance time, the oil is lower than the minimum scale, and the damage is serious!

Hello, there are several ways to self-test:

1.If it is very clean and not wet, and there is no accumulation of combustion residues, it proves that the engine is in very good condition, and every drop of fuel has been fully burned, even if there are some particles similar to sand, in fact, it is only the crystallized product of the engine after high temperature combustion.

2.If there is black sediment on the inner lower part of the exhaust pipe, which is dry to the touch, it proves that the engine has excessive fuel injection or insufficient combustion, and these black deposits are actually excessive fuel accumulation in the exhaust pipe for a long time.

3.However, it is similar to the previous phenomenon, except that the sediment touched by hand is wet and even a little sticky, which indicates that the engine is working abnormally, too much fuel is not involved in combustion, or gasoline is mixed with the engine oil. At the same time, it also indicates that there is a slight oil burning phenomenon in the engine, which may not be intuitively noticed, but this phenomenon is worth your attention.

4.If you drive the car in the idle state, you can see blue smoke coming out of the exhaust pipe, which proves that the engine burns oil very seriously, and it is not just as simple as burning engine oil, there must be a problem with the core components inside the engine. For example, cylinder barrels, pistons, piston rings, valve seals, and so on.

In this case, the engine needs to be repaired as soon as possible.