Briefly describe the cause of blue smoke coming out of the engine exhaust pipe

The blue smoke from the engine is basically burning the engine oil, and there are many reasons for this, roughly the following situations:

1. If the back pressure of the oil return oil circuit of the supercharger is too high, check whether the supercharger is leaking and whether the oil return pipe is blocked.

2. The exhaust gas valve is damaged, and the oil and gas cannot be separated, and it re-enters the combustion chamber for combustion.

3. The valve oil seal is aged, damaged or damaged, and the gap between the valve and the guide is too large.

Fourth, the oil exceeds the upper limit, so that the crankshaft throws the oil into the combustion chamber to participate in the combustion during high-speed operation.

5. The engine is severely worn, resulting in too large a gap between the piston and the cylinder wall, and the oil enters the combustion chamber through the gap.

Sixth, the piston ring is stuck, and the cylinder wall oil participates in the combustion. This is the reason why most cars burn engine oil.

The solution to burning engine oil.

In the habitual thinking of car enthusiasts, they always think that the piston ring stuck engine oil should be overhauled, so that it will not only bear high maintenance costs, but also bear the unpredictable risks and depreciation losses brought about by the overhaul. Destroy the airtightness and precision of the engine. And there is a possibility that the engine oil will burn again after tens of thousands of kilometers, so overhauling the engine is not sustainable.

Now the no-dismantling technology has been very mature and gradually accepted by the majority of car owners. In particular, the non-destructive repair products containing PNF patented technology have completely gotten rid of the technical shackles of burning engine oil and having to go to the auto repair shop for overhaul, without removing a screw, repairing and releasing the piston ring stuck engine oil while driving, with remarkable results.

1. Black smoke from the exhaust pipe

It shows that the engine mixture is too thick, resulting in insufficient combustion. When the air filter is too dirty, the spark plug is poor, the ignition coil is faulty, etc., it will cause the engine to emit black smoke.

2. Blue smoke from the exhaust pipe

It shows that the engine oil enters the combustion chamber to participate in combustion, the piston ring and the cylinder liner are not completely run-in, and the oil enters through the gap; The piston ring is bonded in the groove, and the cone surface of the piston ring is reversed, losing the effect of oil scraping; The piston rings are worn excessively, and the oil runs into the combustion chamber through the opening gap; The oil pan oil level is too high; The valves and tubes are worn out, and the clearance is too large. It can be solved by the following methods: the new car or overhauled locomotive must run in the engine according to the regulations, so that the parts can be meshed normally; Look at the assembly mark clearly and install the piston ring correctly; Replacement of qualified or oversized piston rings; Find out the reason for the increase in the oil pan oil level and release the excess oil from the oil pan; Reduction of oil in the filter pan; Replace the valve guide.

The reason for the black smoke, blue smoke, and white smoke from the exhaust pipe, do you know why?

1. Improper use of engine oil.

In many cases, the main reason for the white smoke emitted from the start of the car is that due to the use of substandard engine oil, the engine will be loaded under the long-term high-temperature operation of the car, the power of the oil pump pump is insufficient, and it will affect the life of the engine, and it will cause the engine to burn oil.

2. Poor piston sealing.

There is also a situation where there are scratches on the cylinder wall, poor piston sealing, and valve wear resulting in gaps, which enter the gasoline combustion chamber to participate in combustion, and when the combustion is not full. When it is divided, it produces blue smoke.

3. Wear and tear of pipes and valves.

When pipes and valves are worn, excess oil enters the combustion chamber and burns can lead to the formation of blue smoke from the exhaust pipe of the car.

Blue smoke from the engine is mainly caused by burning engine oil. Here are a few common causes of failure:

There is too much oil in the air filter. There is too much oil in the oil pan of the air filter, in the case of a hot car, the oil becomes thinner, and it is easy to be brought into the cylinder for combustion, so that the engine emits blue smoke, and the oil level in the piston ring and the oil pan can not exceed the oil level ring groove.

There is too much oil in the oil pan. There is too much oil in the oil pan, and the oil splashed on the cylinder wall also increases, and some of the oil squeezes from the gap in the piston ring to the combustion chamber to ignite, producing blue smoke. Therefore, the oil in the oil pan should not exceed the upper line of the oil scale.

The gap between the piston ring and the cylinder liner is too large after wear or wear, and the piston ring is cemented by carbon deposits, and the oil on the cylinder wall can not be scraped off; The piston ring wear and the cylinder liner gap is too large, reducing the oil scraping ability, and the oil is channeling, which will cause blue smoke from the cylinder liner exhaust pipe, and the oil can be discharged in serious cases.

The cylinder liner does not run in well with the piston group. New car or overhauled locomotive, cylinder liner and piston, piston ring has not undergone a good run-in, at the beginning of work because the piston ring can not scrape the oil on the cylinder wall, will also emit blue smoke. However, after a period of running-in, it can be eliminated by itself.

In addition, the piston ring cone is reversed, the valve guide is worn, and the phenomenon of burning engine oil and emitting blue smoke also occurs, and the piston ring must be reinstalled or the duct replaced.

Hello, your situation is that the engine burns oil too badly, resulting in blue smoke from the exhaust and a burning smell. The main reasons for burning engine oil are generally that the valve oil seal is not tightly sealed, the hall bends early, the valve guide gap is too large, the piston ring seal is not tight, and the gap is too large.

Hello, this situation is the phenomenon of engine oil burning.

Nothing else, typical symptoms of burning engine oil.

Hello, is there always a situation like this or cold start?

The main factors of blue smoke from diesel engines are as follows: 1. The use of unqualified oil, or the diesel has not been replaced for a long time, the reason is that the diesel is too thin and the combustion is not sufficient. The solution is to replace the qualified diesel; 2. Caused by the start of the big throttle of the cold car; 3. The quality of the mixed gas involved in combustion is not good, or it is caused by the aging of the filter and the failure to replace it; 4. The bucket and valve are worn out in the process of working, so that the gap between the two is too large, and in the process of air intake, excess oil in the rocker chamber is sucked into the combustion chamber for combustion; 5. The leakage plug ring of the live pin is stuck in the ring groove due to carbon deposit, which makes it lose its elasticity and cannot work normally.

The solution, if necessary, is to replace the piston ring, or remove the piston ring to remove the carbon deposit. When the engine emits blue smoke or the oil pressure alarm, the engine lubrication system should be checked in time and repaired in time to prevent unnecessary losses. Intelligent manufacturing view, focusing on the sharing of theoretical knowledge related to the construction machinery manufacturing industry.

In actual use, it is also necessary to judge and analyze according to the specific situation of the vehicle to ensure the continuous and efficient operation of our vehicles.

Summary. Hello oh dear, white smoke from the engine exhaust pipe is generally caused by water vapor mixed into the cylinder to participate in combustion. The white smoke from the exhaust pipe of our engine is usually caused by water vapor mixed into the cylinder to participate in combustion.

When burned in the combustion chamber of a car engine, a large amount of smoke and exhaust gases are generated and discharged through the exhaust pipe. When water vapor is mixed into the combustion chamber of the engine, white smoke is emitted from the exhaust pipe. Water vapor is usually caused by problems such as water ingress into the air intake system or coolant leakage, which causes water to enter the engine combustion chamber.

In addition, the failure of the engine to burn adequately can also lead to a similar situation. If you notice white smoke coming from your engine's exhaust pipe, you may need to have your car's air intake, cooling, ignition and exhaust systems overhauled. <>

<> white smoke from the engine exhaust pipe is generally caused by what is mixed into the cylinder to participate in combustion.

Hello oh dear, white smoke from the engine exhaust pipe is generally caused by water vapor mixed into the cylinder to participate in combustion, resulting in Cha Sell Mountain. The white smoke from the exhaust pipe of our engine is usually caused by water vapor mixed into the cylinder to participate in combustion. When a car engine is burned in the combustion chamber, a large amount of smoke and exhaust gases are quietly generated and discharged through the exhaust pipe.

When water vapor is mixed into the combustion chamber of the defeated engine, white smoke will be emitted from the exhaust pipe. Water vapor is usually caused by problems such as water ingress into the air intake system or coolant leakage, which causes water to enter the engine combustion chamber. In addition, the failure of the engine to burn adequately can also lead to a similar situation.

If you notice white smoke coming from your engine's exhaust pipe, you may need to have your car's air intake, cooling, ignition and exhaust systems overhauled. <>

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Dear, I saw the ** you sent, choose water. <>

What causes blue smoke from an engine failure exhaust pipe? What is the reason for the blue smoke from the exhaust pipe of the engine failure? The first reaction is that the car burns oil, which is one of the simplest reasons for judging excessive fuel consumption.

If the engine does not run for a long time and the oil seal is not tight, the oil will enter the cylinder through the gap between the valve oil seals. When the engine is started, the oil in the cylinder burns with the gas mixture at high or high temperatures, resulting in blue smoke. Possible causes:

1. The valve oil seal is aged, damaged or damaged, and the gap between the valve and the guide is too large. 2. The air filter is caused by the blockage of the air intake part, the mixture is too thick, and too much oil is brought into the combustion chamber to participate in combustion. 3. Long-term incorrect driving mode, long-term overload operation, etc., resulting in premature aging and wear of the fiber racket engine.

4. Use unqualified engine oil, or the engine oil has not been replaced for a long time. The reason is that the oil is too thin and the combustion is not sufficient. @2019

Blue smoke from the engine exhaust pipe is caused by burning engine oil, that is, the oil cannot be completely burned off after entering the cylinder combustion chamber, and it will become blue smoke and be discharged from the exhaust pipe. Blue smoke is a serious phenomenon of burning engine oil, after this situation occurs, the cause of burning engine oil should be checked immediately, and then repaired. Engine oil is known as the blood of the engine.

It not only plays a lubricating role in the engine, but also plays a role in cleaning, sealing, buffering, rust prevention and heat dissipation. If there is no oil in the engine, it will not be able to function properly.

When the engine is working, the oil will form a film of oil on the surface of each part of the engine, which can avoid direct contact and friction between the various parts of the engine. Blue smoke coming out of a car's exhaust pipe indicates that the car's engine is burning oil. Your favorite car could be caused by:

The gap between the cylinder and the piston is too large. Too much oil is entering the cylinder. There's too much oil in the oil pan.

During the splash lubrication process, a large amount of oil rushes into the cylinder. The hot air inside the cylinder runs into the oil pan. It makes the oil deteriorate and pollute, and it becomes thinner and affects the lubrication effect.

The harm is obvious. Therefore, when adding engine oil, it must be added in the appropriate amount as required, and pay attention to the HI and LO marks. Fault phenomenon of blue smoke emitting from the exhaust pipe of the car:

The car is moving. Blue or gray smoke is emitted from the engine exhaust pipe and a burnt smell is heard.

Cause of blue smoke failure of automobile exhaust pipe: blue smoke or gray smoke from the exhaust manifold when the engine is running. It is mainly the oil that enters the cylinder combustion chamber to participate in the combustion.

The spark plug was removed and it was found that the carbon deposits were severe. High oil consumption. Mainly the oil enters the combustion chamber.

After the oil enters the dust pat cylinder, it evaporates into blue and is discharged from the cylinder with the exhaust gas. There will be a blue smoke report at the exhaust manifold.

Blue smoke from a car is mainly caused by the incomplete combustion of the engine oil entering the combustion chamber. There are several main reasons why engine oil enters the combustion chamber.

1. The gap between the cylinder and the piston or piston ring is too large, and the piston ring is reversed.

2. Serious wear of the valve guide or aging of the gas and door oil seals leads to the leakage of Xinhong oil into the combustion chamber.

3. Oil leakage after cylinder gasket ablation.

The blue smoke is discharged from the air pipe next to the high exhaust of the car, indicating that the car burns engine oil, it will produce this blue smoke, the first calendar is generally said to be caused by the aging of the car, the greater the blue smoke, indicating that the aging of the machine is serious, and it should be repaired in time.