The reason for clogged injectors is often low-quality fuel. When it burns, carbon deposits are formed in the form of resinous compounds. Externally similar to a varnish crust, it is not scraped off or washed off with solvents.
Engine operation directly depends on the thickness of the carbon layer: the thicker it is, the greater the fuel consumption.
When to ultrasonic clean nozzles
If your car uses more fuel than usual, idles unstable and there is a loss of power, contact a workshop immediately.
Additional evidence of clogging is manifested in the following symptoms:
- increased CO / CH level;
- unstable functioning of the car engine;
- corrosive exhaust gases and detonation;
- failure of various systems and components.
About two ways of cleaning
The first way is with the help of chemicals. The car owner himself can monitor the degree of contamination of parts by regularly performing preventive maintenance. However, with a thick layer of carbon deposits, chemistry may not completely remove it.
Ultrasonic cleaning of injectors is recognized as more effective and of higher quality. This method removes even complex dirt.
Motorists sometimes complain that after using ultrasound, the injectors stop working. Car service specialists disagree with this, who claim that this method reveals non-working parts of the part. When a thick layer of carbon is formed, the nozzle deforms and breaks. It is because of this that, after cleaning, the engine will not start.
How is ultrasonic cleaning of nozzles carried out?
With this method of cleaning, the part is lowered into a bath filled with a special solution. At the service station, special containers are used for cleaning – ultrasonic baths. The nozzles together with the nozzle are lowered into the bath, then ultrasonic waves are turned on. The oscillation frequency of these waves contributes to the effective cleaning of the internal cavities of the parts.
The main thing is not to completely dip the part into the liquid. Then a short circuit may occur, it will become unusable, and you will be forced to contact the spare parts stores for a new part.
The cleaned parts are tested on the bench, where the degree of wear, tightness, performance is determined.
However, the procedure has a certain disadvantage – only the injectors are cleaned, and other parts of the fuel system remain uncleaned. This effect is called half-hearted.
Clients often ask which cleaning method to choose. With the help of ultrasound, resuscitation actions of the nozzles are carried out – checking for accuracy, restoring performance. Washing engine parts partially removes carbon deposits and is a maintenance not only of the injectors, but also of the cylinder-piston system and the fuel rail.
Therefore, ultrasound is carried out in case of suspicion of a malfunction of the nozzles, or with a mileage of 70 thousand km or more. It is advisable to flush the engine every 20-25 thousand km, combining it with replacing the spark plugs.