Carbon deposits are always generated with the operation of the engine, and many riders are always worried about carbon deposits, which are actually completely unnecessary. A brand new engine only needs to run for a second to produce carbon deposits, so any engine will inevitably have carbon deposits as long as it is used, and there is no need to be sure.
Even though combustion engines are very efficient today, they still can't burn the fuel completely. Incomplete combustion of fuel is carbon deposit, and incomplete combustion of carbon-containing substances will produce carbon deposits. So every driver doesn't have to worry about whether the engine has carbon deposits, because there will be. You just need to know how to keep the carbon deposits in the engine under control and when to clean them up.
Many riders' fear of engine carbon deposits stems from the carbon deposits on the Internet, as shown in the figure above, the inside of the engine has been occupied by a large amount of oil sludge and carbon deposits. How did this actually come about?This serious situation can confirm that the engine must not be properly maintained, and generally speaking, the use of refurbished engine oil is the most likely to occur. Therefore, as long as the riders maintain it in accordance with the standards of the vehicle manual, they will not produce so much carbon deposits and sludge.
In addition to choosing the oil according to the requirements of the vehicle manual, the oil change interval should not be too long. The author once saw an engine that had not been maintained for three years, and the cylinder was full of carbon deposits and sludge. It is important to know that the oil itself has the ability to clean, and this will not happen as long as it is replaced according to the standard. The carbon deposits on the internet that can clog the valves will never be found on properly maintained engines. So don't be afraid of carbon deposits, and don't be affected by those full of carbon deposits.
Carbon deposits are like impurities in human blood, who dares to say that there are no impurities in their blood?But can a person feel impurities in the blood?It is not felt, and a small amount of impurities does not affect the human body. And once the human body can feel too many impurities, I'm afraid it's not a trivial matter, right?For example, high blood lipids, high blood viscosity, high blood sugar, etc., when you feel that something is wrong, it must not be a small problem.
The same is true for engine carbon deposits, a small amount of carbon deposits are not felt by the driver, and once the driver feels a lot of carbon deposits, it is very troublesome to deal with. This is similar to the coking of the intermediate of the turbocharger in the past, the coking is the residual heat of the volute after the machine is turned off, and the residual oil inside the intermediate is scorched. Once in a while, coking is no problem and does not affect anything. However, when coking and carbon accumulation layer by layer, and finally shrinking the pipeline or even blocking the pipeline, the driver can feel it, and the system will also report errors. And by this time this turbocharger had been completely scrapped.
The same is true for carbon deposits in the combustion chamber of the engine, which are difficult for the driver to detect in the constant accumulation (except for the endoscope) and cannot be felt at all. However, once the driver feels the increase in engine knocking, unstable idling, turbo lag, and increased fuel consumption, the amount of carbon accumulation is too much. The amount of carbon deposits is so large that it seriously occupies the volume of the combustion chamber, which is equivalent to amplifying the actual compression ratio, which naturally leads to detonation. At this time, it is not a matter of beating the hanging bottle and using a few fuel treasures to solve the problem, and there is a high probability that the engine will be disassembled to dig coal.
Writing this, everyone should know what is going on with engine carbon deposits, right?Therefore, the significance of prevention is far greater than the disposal of engine carbon deposits. Don't wait for the machine to have obvious problems before choosing to clean up the carbon deposits, because it will be troublesome to clean up at this time. As in the human body example above, daily maintenance is far more valuable than curing illness after illness. The same is true for carbon deposits, which are much better to reduce the rate at which carbon deposits accumulate than to clean them up after they have accumulated more.
Reasonable maintenance is actually very simple, just follow the maintenance standards on the vehicle manual. The vehicle manual requires the use of whatever oil is used, and the vehicle manual requires regular use of fuel treasure. Since the era of direct injection in the internal combustion engine, the problem of carbon deposition has become serious. The reason is very simple, the atomization of the direct injection model in the cylinder at low temperature is very poor, and the poor atomization leads to the system to concentrate the injection, and too high concentration will cause a lot of fuel to be incompletely combusted, attached to the combustion chamber or directly discharged.
Therefore, many manufacturers of in-cylinder direct injection engines now recommend using clean fuel treasure on a regular basis, because this is the characteristic of in-cylinder direct injection engines. Why are most of the exhaust pipes of in-cylinder direct injection models black?Why are there twin-jet engines?This is due to the poor operating conditions of the direct injection engine at low temperatures. All in all, don't be afraid of carbon deposits, which are always being created as the engine runs. Don't judge the amount of carbon deposits by feelings, because once the engine has a lot of carbon deposits, it can be troublesome to deal with, and prevention is more important than disposal.