How to choose a vehicle carbon deposition cleaner?

Effects of excessive carbon deposition in the combustion chamber:

1. The engine combustion chamber is the worst place in the working environment of the car, which is under high temperature and high pressure for a long time. Inevitably, carbon deposits also occur here, mainly from the pyrolysis of incompletely burned fuel. The carbon particles here are hard and pot-shaped, and in severe cases, they are honeycomb and have a certain thickness;

2. The carbon deposition here will affect the intake vortex, hinder the rate of flame propagation, and lead to a decrease in power, which will lead to engine knocking (commonly known as cylinder knocking), and even excessive pressure leading to combustion chamber breakdown;

3. Slight carbon deposition does not matter much, but carbon deposition in the combustion chamber is an accumulation process from slow to fast, so daily cleaning is very important.

4. It is difficult to start the vehicle in winter, and the engine shakes after starting, and even causes the engine not to start; There will be a lack of acceleration of the vehicle; Idle shaking of hot cars; the phenomenon of increased oil consumption; Every carbon deposit inside the engine will have a bad impact on the normal operation of the engine, and in severe cases, it will cause irreversible damage to the engine piston.

The commonly used methods are: dismantling and washing, hanging bottle cleaning, and fuel additives.

1. Dismantle and wash. This method is very direct and rude, but it is generally sent to the 4S store for disassembly, the disassembly of the engine is more complicated, no matter what parts will affect its performance more or less every time it is disassembled, you need to ask a professional master to disassemble. The carbon deposits in the engine can be seen directly when dismantled and washed, and the cleaning will be relatively clean.

However, the cost will be relatively high, and it will also require technology.

2. Hanging bottle cleaning.

This method is also relatively common, the hanging bottle is to discharge the cleaning agent into the air intake, dilute and soften the carbon deposit to turn it into a slurry, and then burn it from the cylinder to discharge. Generally, the cleaning objects include the intake tract, throttle, intake valve, fuel injector, cylinder inside, etc., but the effect is not as direct and obvious as dismantling and washing.

3. Fuel additives.

One of the causes of carbon deposition is that the fuel burns insufficiently, which adheres to various parts of the engine and forms carbon deposits over time. The main function of additives is to drill into the pores of carbon deposits with the help of strong surface activity, destroy their structure, and gradually dissolve these carbon particles from the metal surface, and then discharge them through exhaust gas after burning with fuel at high temperatures. Effective fuel additives such as PNF stock solution are not corrosive, can clean the whole oil circuit, fuel tank impurities, fuel tank moisture, high-pressure oil pump, built-in gasoline filter, fuel injector, piston top, intake valve, exhaust valve, will not clog ternary, and the safety is relatively high.

However, the only way to clean carbon deposits is to decompose the engine, but in the past, many vehicles were equipped with carburetors with large fuel injections, and as long as the carbon deposits are not serious enough to hinder the operation of the car valves, the engine is not obviously affected by carbon deposits, so there are not many cases of engine decomposition for special cleaning of carbon deposits.

And now we can all clean the carbon deposits of cars by filling up high-quality gasoline. Since the presence of impurities such as wax and gum in gasoline is the main component of carbon deposits, the trend of carbon deposits in gasoline with high cleanliness is relatively weak.

In order to effectively ensure the cleanliness of gasoline, the practice of adding a certain amount of gasoline detergent to gasoline is generally adopted. This can effectively prevent the formation of carbon deposits on the metal surface, and can effectively remove the original carbon deposits that are gradually activated, so as to protect the engine from injury.

Choose a trouble-free one that is easy to operate and does not need to be disassembled, like Carbonnova, which will protect metal and rubber parts from corrosion while cleaning.

Engine dismantling and cleaning is the most effective way to clean up carbon deposits, in terms of effect, engine dismantling and cleaning is undoubtedly the best, but the whole process requires a lot of time and energy, the engine needs to be disassembled, and then use detergents, ultrasonic and other methods to completely and thoroughly remove carbon deposits on parts. Of course, ** is also the most expensive.

In addition to engine dismantling, there are several ways to clean up carbon deposits in automobiles:

1. The car hangs the bottle. A bottle-shaped tool is hung above the engine, and then the detergent is poured into the bottle tool and introduced into the engine through the catheter to clean the carbon deposit. **Around $1000.

If the engine has significant carbon deposits, this can lead to blockage or damage to the three-way catalytic system.

2. Machine wash. The cleaning agent is injected into a machine, and then the machine pressurizes the combustion chamber to let the cleaning agent react with the carbon deposit to dissolve, and then the waste liquid is pumped out. This method has a good effect on some serious carbon deposits, and there is no need to disassemble the engine, but the cost is higher, and the oil needs to be changed after cleaning.

The cost of an engine for dry ice cleaning is about 4 15 = 60 yuan, plus the labor cost of 300 yuan, about 360 yuan.

The advantages of cleaning carbon deposits with dry ice are: due to the characteristics of dry ice, the carbon deposits can be frozen and embrittled by high-speed impact during cleaning, and the embrittlement is very easy to peel off, so as to achieve the effect of cleaning. The dry ice cleaning machine can clean the engine carbon deposits without dismantling, with high cleaning efficiency and short cleaning time.

The disadvantage is: there are certain requirements for the use conditions, such as when the engine is too cold, the carbon deposit is not easy to be frozen and embrittlemented quickly, and it is best to use dry ice to clean it when the engine temperature is high. In addition, during the use of dry ice, condensation is easy to occur, and although the engine compartment has a certain waterproof ability, there is also the possibility of water damage to parts.

The reasons for engine carbon deposition are: first of all, there are too many impurities in the fuel, simply put, the oil is not good and the fuel is inferior. There is also the blind use of high-grade gasoline, which leads to incomplete fuel combustion, resulting in carbon deposits.

Finally, it is caused by personal driving habits, and the engine will also produce carbon deposits when it is idle for a long time, low revs, and low gear. Carbon deposits are deposited in various parts of the engine, such as throttle valves, intake manifolds, injectors (in-cylinder manifold injection or direct injection), the back of intake and exhaust valves, combustion chamber walls, piston tops, exhaust systems, exhaust gas recirculation systems, crankcase ventilation systems, three-way catalytic converters, etc.

The best way to prevent carbon build-up is to develop good driving habits and avoid driving at low or low speeds for long periods of time, driving short distances, heating up in place, and using low-quality fuel and oil. In addition, the air filter is also important. If the air cannot be completely filtered, the dust in the air will enter the engine and form a core of carbon deposits, which will accelerate the formation of carbon deposits.

After cleaning the carbon deposit, the vehicle is more likely to produce excessive carbon deposits, and the specific reasons are as follows.

In fact, no matter what vehicle as long as it travels to 5000 kilometers, it is necessary to add carbon deposition cleaning agent, every 5000 kilometers will be more appropriate, and the amount added each time should be judged according to the capacity of the fuel tank. The reason why it is necessary to add carbon deposition cleaning agent to the fuel tank is also to clean up the carbon deposits in the engine, and if it is a new car, there is no need to use cleaning agent. After the car reaches a certain mileage, you can choose to add a small amount of carbon deposition cleaning agent to the fuel tank, and if the mileage of the new car does not reach 5000 kilometers, there is no need to add it.

Now there are many types and brands of carbon deposition cleaning agents on the market, so we must choose the most suitable brand based on the actual situation of the car.

The carbon deposits in the intake valve are actually the glue carbon left over from the combustion of gasoline. Because the rubber carbon has the characteristics of absorbing gasoline, this layer of carbon will absorb gasoline, and the more it is wrapped, so that the vicious circle leads to the intake valve can not be closed, the engine power becomes poor, and a series of failures such as difficulty in cold car start.

Carbon deposits in the combustion chamber can accumulate in the combustion chamber or on the three-way catalytic converter. If the combustion chamber has a strong carbon deposit, it will cause the spark plug to ignite, and the cylinder pressure will rise, injuring the internal parts of the engine, and causing a sound similar to knocking on the cylinder block, which is called a burst. Experienced car owners can judge the carbon deposition in the combustion chamber by observing the spark plug ignition and thermal power extreme.

When the carbon deposits in the combustion chamber are cleaned, the exhaust emission detection will be as easy as a new car, and it will be very easy to meet the standard.

We know the above two reasons for the formation of carbon deposits, and finally let's talk about the solution.

First of all, for the carbon deposition cleaning of the intake valve, the bottle is generally slinged. This method is simple and effective, and it is recommended to wash it every 5,000 kilometers.

For the cleaning of the three-way catalytic converter, the cleaning effect of the hanging bottle is poor. We generally use a special water-based ternary cleaning agent with special equipment to clean and reduce the three-way catalytic converter (it is recommended to clean it every 20,000 kilometers). There are some informal maintenance shops that will covet convenience and directly soak the three-way catalytic converter with oxalic acid, so that the strong acidic liquid will corrode the inside of the catalytic converter, and you must pay attention to it.

The addition of carbon deposition additives to the fuel tank should have a long-term effect, not an immediate requirement of how many kilometers must be run at a time. The role of this additive is the effect of slow-release cleaning, so it is generally necessary to run one or two tanks of oil to have a more obvious effect.

The decarbonizer added to the fuel tank should have a long-term effect, eliminating the need to travel several kilometers at a time. The effect of this additive is to slow down the cleaning process, so it is often necessary to run one or two tanks to produce a more noticeable effect.

Adding decarburizing additives to the fuel tank should be long-term and do not require that many kilometers to run each time. The effect of this additive is a slow-release clean, so it is usually necessary to run one or two tanks to produce a more noticeable effect.

Carbon removal additives added to the fuel tank must have a long-term effect and do not require a run of several kilometers at a time. The effect of this additive is to delay cleaning, so it is often necessary to run one or two tanks to produce a more noticeable effect.

How many kilometers does the car add carbon deposition cleaner|? It's the automotive industry, your car. You have to go to the automotive industry. Ask.