Teacher, I would like to ask if the carbon deposition of Honda s Earth Dream is so serious

The residue of substances in the fuel injector, throttle, oil pipeline, spark plug, cylinder head, inner wall and other parts caused by insufficient combustion of gasoline in the cylinder, and then the black gum produced by the repeated high temperature action of the engine is called carbon deposit.

One of the reasons for carbon deposition is that the fuel is not completely burned and adheres to various parts of the engine, which can form carbon deposits over time. The main function of additives is to drill into the pores of carbon deposits with strong surface activity, destroy their structure, and gradually dissolve these carbon particles from the metal surface, and then discharge them through the exhaust gas after burning with the fuel at high temperature.

The increase in carbon deposits in the car will lead to insufficient combustion of the engine, resulting in an increase in fuel consumption and a long time when the car failure light is on.

Ways to slow down the formation of carbon deposits:

1.Use high-quality fuel. Because the main components of carbon deposits are wax and colloidal deposition in the fuel, the lower the colloidal content in the fuel, the better. But we can't change the quality of the fuel, but we can choose not to add unidentified cheap fuel.

2.Avoid driving at low speeds for long periods of time. If necessary, the high speed can be pulled at a regular time. The principle of removing carbon deposits at a high speed is to speed up the airflow, which can carry away a small amount of carbon deposits that are not firmly attached. The combustion temperature is increased so that part of the carbon deposits in the cylinder are burned.

Carbon deposition hazards. If the carbon deposit is not cleaned for a long time, the operation of the whole vehicle will be caused, the internal channel of the engine will be blocked by carbon deposits, the engine power will become worse, and the occurrence of fuel consumption, abnormal engine noise, and unstable idle speed will occur, thereby reducing the power of the automobile engine, increasing fuel consumption, and causing the combustion rate to be too low. If you do not clean up carbon deposition in time, it will not only cause a certain degree of harm to the car, but also cause great harm to the environment, modern society pays attention to energy conservation and emission reduction, and exhaust emissions must not exceed the standard, so we should pay attention to this problem usually 5000 kilometers using effective PNF fuel additives to clean an overall oil circuit carbon deposit, and if you do not clean up carbon deposition for a long time, it will cause the operation of the whole vehicle, so that the internal channel of the engine is blocked by carbon deposition, and the internal fuel injection of the car is not smooth, so that the engine power becomes poor. As a result, the power of the automobile engine is reduced, the fuel consumption is increased, and the combustion rate is too low.

Pull the high speed from time to time.

Regularly add gasoline detergent.

Do it yourself, go to Ma Yun's house to buy throttle cleaner to clean the throttle;

Look for 4s cleaning.

Complaints, complaints, complaints, and let the relevant departments find Honda to solve them;

Theoretically, any normal engine will produce carbon deposition, but the degree of carbon deposition is different because of the different technologies of the manufacturers, the differences in engine structure and the different driving habits. Honda's engines are designed with a high compression ratio in pursuit of lower fuel consumption and higher performance. The increase in the compression ratio contributes to the combustion performance and power of the fuel, but it also brings with it the risk of premature combustion of the engine cylinder.

Premature combustion will put the engine in an abnormal compression state, which is more likely to produce carbon deposits, increase the pressure of the cylinder, and damage the engine.

On the other hand, Honda Earth Dream series models also use in-cylinder direct injection technology, the inherent disadvantage of this technology is that it is easy to cause carbon deposition in fuel nozzles and intake valves, and there is no effective solution at present, so the later maintenance and maintenance costs of direct injection engines will be relatively high. However, from the perspective of use, as long as the high-grade fuel is used normally and the oil is changed regularly (it is best to use synthetic oil), the carbon deposition will not affect the normal use, and I believe that Honda has verified the carbon deposition problem, and there is no need to worry about the safety of the engine.

In addition, the EFI engine is first injected with fuel and then ignited, and when the engine is turned off, the ignition device is immediately cut off, but the gasoline that is sprayed out in an instant cannot be burned, and can only adhere to the intake valve and the combustion chamber wall. Gasoline is volatile, but the wax and glue in it remain. Over time, the wax and gum in gasoline will accumulate thicker and thicker, and after repeated heating, it will coke and form carbon deposits.

Pay attention to time: Due to some objective factors, it is difficult to avoid the formation of carbon deposits even if the above four points are achieved. In this case, the most effective method is to disassemble and clean the air intake system every 20,000-40,000 kilometers, that is, to clean the air intake, valve, oil circuit and other parts that are prone to carbon deposits without disassembling the engine.

If carbon deposition causes engine failure, such as idle jitter, difficulty in starting, idle speed, high emissions, etc. Use some removable cleaner. If the carbon deposits are very serious (generally at least 100,000 kilometers or more), it is necessary to completely disassemble the engine (pistons, cylinder heads, valves, spark plugs, etc.) for cleaning, and it is not recommended to use full disassembly for cleaning.

Yes. Because any engine will have carbon deposits, but the degree is different, so the Honda Earth Dream engine will also have carbon deposits.

There is a carbon deposit; Any engine will have carbon deposits in rough gear after a period of operation, which is caused by incomplete combustion of oil, and the kinetic energy of this engine is particularly large, and the carbon deposits will be more obvious. Rock let chaos.

There will be carbon deposits; This is because when the engine of the car is in operation, it must have a certain ground state impact on the engine, but because of the different materials, different technologies, different workmanship, and different materials, the degree of impact of carbon deposition will be different, but it will not be said that there is no magic bond at all.

Carbon deposits come from burning engine oil, and don't worry about gasoline that is not up to standard! The Honda engine with a particularly high rpm is regularly replaced with fully synthetic 0w20 regular engine oil, and the old engine oil of the factory is added to the old gasoline and the orange containing orange in the factory! Running hundreds of thousands of kilometers is nothing!

As long as the oil is burned, there is carbon deposit. Oil is carbon-based.

Yes, caused by engine design defects, the incidence is high in the cold areas of the north, and it is accompanied by an increase in organic oils.

Serious carbon deposits;

The engine is equipped with a staggering 131PS horsepower on the Fit, codenamed GK5, which is difficult to achieve on other brands.

No matter how good the engine is, it will have defects, and this kind of defect will only exist in China, and it can be regarded as having Chinese characteristics, that is, the engine has serious carbon deposits. So, the question arises, why is it only in our country that the carbon deposition of the engine is so serious? The answer must be known to everyone, it is caused by domestic oil.

The ugly point is that the oil is too inferior, which cannot meet the requirements of the engine.

If you put aside the vehicle itself and personal emotions, in terms of the engine alone, the performance of the Earth Dream engine is still good. The Honda Earth Dream engine adopts direct injection, increases turbocharging system, converts multi-point EFI and direct injection mode to each other, adopts EFI when starting at low speed, and adopts direct injection mode when cruising at high speed, so that it has been greatly enhanced in terms of power.

If so, PetroChina and Sinopec will definitely not be convinced. With the same oil, why is someone else's engine fine, only your Honda's Earth Dream engine has carbon deposits, wouldn't it be your engine itself's problem? In order to adapt to Chinese oil products, Mazda reduced the compression ratio of the Skyactiv engine, sacrificing part of the power, which avoided the generation of carbon deposits.

Speaking of which, you should understand what's going on.

Carbon deposition is caused by poor fuel quality, which can cause insufficient combustion of gasoline and cause the engine to shake. The impact of engine carbon deposition on the car is quite large, first of all, to reduce the engine power, that is, to make the power output uneven and gradually decay, in other words, more and more powerless. The second is to increase fuel consumption and increase your financial burden.

The third is the difficulty of cold start, that is, the difficulty of ignition, it is not easy to get on the car, and finally the serious carbon deposition in the combustion chamber will also cause cylinder detonation, and there is a sound of low-speed acceleration, which will cause damage to the piston and crankshaft, and cause high temperature of the engine and seriously affect the safety of the car. Then there is the excessive discharge, which not only fails the annual inspection and inspection, but also directly aggravates the harm of polluting the environment.

There is another reason: the throttle valve is faulty. Both of these problems can cause engine shake and unstable speed.

Every car has carbon deposits in every engine.

Let's first understand what carbon deposition is: the residue of substances in the fuel injector, throttle, oil pipeline, spark plug, cylinder head, inner wall and other components caused by insufficient combustion of gasoline in the cylinder, and then the black gum produced under the repeated high temperature action of the engine, which is called carbon deposition.

The harm of carbon deposits to automobile engines, if the carbon deposits are not cleaned up for a long time, it will cause the occurrence of automobile engine power decline, fuel consumption, abnormal engine noise, and unstable idling.

If it is a new car, if the engine power is insufficient and the fuel consumption is high, then it is recommended to clean the throttle or make a car endoscope to see if it is caused by carbon deposits.

If it is an old car and has run more than 100,000 kilometers, you can choose to hang the bottle (cleaning with cleaning agent) or disassemble the machine for cleaning. It is recommended to use hanging cylinders to clean carbon deposits. A little bit is that you don't disassemble any parts of the engine, it won't cause engine damage.

Dismantling and cleaning to disassemble the parts of the engine, after all, it has been disassembled, and there will be other problems with the engine in the future, so the risk will be relatively large.

The VTEC system is actually to improve the intake efficiency of the engine by switching the camshaft with a larger stroke. At low revs, the low-angle cam opens one valve, and at high revs, it opens both valves to strengthen the intake.

Honda's i-VTEC variable valve lift system changes the valve lift by disengaging and combining the three rocker arms to switch between high and low angle camshafts.

The addition of in-cylinder direct injection technology is also a highlight of this engine. The use of in-cylinder direct injection technology can control the fuel injection more precisely, so that the mixed gas combustion is more sufficient, thereby reducing fuel consumption and improving the power performance of the engine.

Honda unveiled its next-generation powertrain, Earth Dreams Technology, which is Honda's ability to combine low fuel consumption, high power and driving pleasure. Earth Dream Technology is a new technology that aims to protect the global environment while ensuring driving pleasure, and will be gradually expanded to Honda products in the future.

The Earth Dream engine is currently one of the best, and the direct injection in the cylinder is easy to produce carbon deposits, and you can't have both fish and bear's paws, and it costs dozens of dollars to clean up carbon deposits once.

The repair shop is clear about the carbon deposition method:

1) If the carbon deposition is not serious, the disassembly-free cleaning method is adopted, and the cleaning is carried out by adding a special cleaning agent liquid.

2) If the carbon deposition is serious, the method of removing the cylinder head to clean the valve and cylinder block should be adopted.

Some precautionary remedies to take by driving yourself:

1) Use clean, compliant fuel;

2) Cultivate good driving habits, and the hand wave shift should be above 2000 rpm;

3) Regularly pull the high speed to let the engine run at high speed to remove slight carbon deposits.

Compared with the previous EFI is serious, it is much lighter than the German turbine, because the earth dream is a direct injection engine, so the gasoline can not be cleaned to the intake tract and intake valve, and the carbon deposition comes from the waste in the waste circulation system and the oil vapor in the crankshaft ventilation system, because the long-term cleaning of gasoline will form carbon deposition, which is not the same as the carbon deposition produced by burning engine oil in the Volkswagen, if a car does not burn engine oil, carbon deposition is not so terrible. All direct injection engines are the same.

It's not turbocharging, and that bit of carbon deposits is negligible

At present, there are only two ways to remove carbon deposits in the maintenance plant, one is to use the disassembly-free cleaning method when the carbon deposits are not serious, and clean them by adding a special cleaning agent liquid. Second, if the carbon deposition is serious, the method of removing the cylinder head to clean the valve and cylinder block should be adopted.

One is to take some preventive remedial measures to reduce carbon deposits as much as possible, 1. Use clean fuel that meets the label; 2) Cultivate good driving habits, and the hand wave shift should be above 2000 rpm; 3) Regularly pull the high speed to let the engine run at high speed to remove slight carbon deposits.