Increased fuel consumption or loss of power may signal that it is time to clean the injectors or, as they say, "wash the injector". This is also evidenced by the situation in which the cold (especially in winter) engine does not start from the first attempt, with the first seconds working unevenly, three, noticeably worse conditions, and when the attempt to speed up first fails, or the machine may collapse at all. Methods for cleaning the nozzles

Methods for cleaning the nozzles

All types of injectors and mechanical (mostly prior to 1993) and electromagnetic (more modern) are clean by two known methods-chemical washing and ultrasound. The first involves the connection directly to the fuel system of the car, and the second involves the dismantling of the injectors themselves and the work with them on a special stand.

Ultrasonic cleaning requires, first of all, the removal of the nozzles, which in some cases is not only laborious, but also a very lengthy operation

Another thing worth mentioning is the "garage" method of chemical washing, cheap and angry-it is the filling of a special tool in the gas tank. There are many options for such additives, some are even too efficient and dangerous. On the way to the outpost, they flush the sediment from the fuel line, the petrol tank-and all that remains on the fuel pump, the filter, the ramp, the nostles themselves. And in the case of a poor or "weary" filter that could be lost, then the consequences could be critical. As a result, the usefulness is not obvious, but the damage is evident.

The sulfur and fractions of heavy compounds, without stopping in the fuel filter, fall into the nozzes, where at the top of the operating engine temperatures are settled on the fuel-carrier channels. This process is enhanced immediately after the shutdown, as the engine is still very hot and the cooling is no longer working.

Chemical flushing of trout

The chemical flushing shall be as follows: the "feed" and "turn" lines are connected. Fuel rail is directly connected to the fuel rail. The walls fitted with a pressure regulator shall only be connected to the supply connector, which gives an opportunity to test the entire fuel system of the vehicle. The methods are referred to as double-outline and single-outline. The following is a special salt liquid, which is a chemical solvent and a fuel. Then the engine shall be started and held in different stopping modes. The sediment is deposited not only from the nozzle itself but also from the adjacent parts of the engine.

The chemical flushing is simple and cheap, but at the same time it is quite effective

This method is simple and cheap, but it is also effective enough. The time of the procedure is usually less than one hour, approximately the same as for the installation and dismantling of the equipment. However, it is not necessary to forget that the sediment itself is a mixture of hard and soft formulations, and the chemical method dissolves and washed predominantly soft, so the chemical flushing is not 100% effective. It is also worth remembering that you can "revive" the boilerers of the piston rings and the valves on the engine with a high mileage, thus losing compression and bringing the repairs closer.

If the chemical flushing did not produce the expected result, it would be taken to an ultrasound.

Ultrasonic cleaning of nozzles

Ultrasonic cleaning requires, first of all, the removal of the nozzles, which in some cases is not only laborious, but also a very lengthy operation (for example, in SsangYong Actyon of the first generation (engine 2.0) the nozzle of the 4th cylinder is sometimes removed for several days due to its critical acidity.

After removal of the nozzle, it shall be thoroughly inspected for surface corrosion and checks on the condition of seals and filters. It is possible to achieve a full-clean treatment only with the use of the stand with the removal of the parameters before and after cleaning, not simply immersion in the ultrasound bath.

There is an ultrasonic radiator on the bottom of the bath, but it does not cause liquid to vibrate as it is assumed. The wave of the waves is the process of formation in the liquid and the subsequent slapping of the gas (s) bubbles. Under the wave, there are local pressure spikes, forming and then blurting bubbles. When rupture occurs, there is a hydroacoustic impact with a total capacity of thousands of atmosphes, but since this happens at the molecular level, only the necessary process of purification is going on. Wave intensity and temperature in the bath are regulated, and the process is called a capitation.

Before diving into the bath, it is desirable to ask whether the master is aware of the nozzle before him, because if, in his opinion, "all are the same," it is bad. After all, the method of cleaning the nozzle of the same type is fatal to the other, however, the dirty tool in the vanis is the correct way to spoil even the most persistent. The ceramic trout can not only be cleaned, but also destroyed, while metal may "fit" paint outside, but they can continue to function normally.

Before cleaning, the nozzle is checked for return, with a large unevenness in the confusion. After the cleaning procedure, the reverse is done-to wash away everything that has been cleared, let the liquid in the opposite direction. It is also necessary to control the result: it is not always possible to carry out a full-scale treatment from the first time. Only by achieving the desired result and replacing all gaskets and gaskets, the nozzle can be returned.

Combined use of both methods is permissible under very high pollution. Also, the specialists recommend that the fuel filter be replaced with the cleaning, so that the results of the work are not destroyed in the shortest possible time (and in the chemical method-also the candles). Generally, it should not be forgotten that the promised resource of most nozzles is one billion cycles, which is about 120 thousand. km But it is necessary to prolong their life, not only periodically visiting the posts of cleaning, but constantly refueling quality fuel.




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