Many car owners know that one of the mainelements of the injection system - nozzle. The holes through which the fuel is supplied gradually become clogged. The fuel mass during combustion forms on the injector and engine plaque. As a result, the nozzles are clogged. Fuel is improperly fed through the blocked holes. Its just not enough. Air mass is not homogeneous, and liquid fuel enters the engine. This greatly impairs the operation of the vehicle. But how to clean the injector on the injector?
Before answering the question of how to clean the injectors, it is worth figuring out what stages of pollution there are and how it affects the operation of the vehicle.
The injector is an important element in the system. There are three stages of pollution:
The injector nozzles are contaminated regularly, and thisinevitably. Therefore, they need to be periodically cleaned. Usually a similar procedure is carried out after a run of 30 thousand kilometers. This allows you to maintain the performance of vehicle systems. If you do not know how to clean the nozzles on the VAZ and other models, then you should contact the experts.
At the moment there are several methods:
Итак, как самому почистить форсунки?When flushing with liquid, the injector is not removed from the engine. To carry out such a procedure requires a special apparatus. With its help liquid is supplied to the nozzles. By the principle of such a unit resembles a fuel pump. However, instead of fuel reagent is supplied. In order to avoid undesirable consequences, you should completely turn off the fuel supply system. The nozzle cleaning fluid can peel off resin deposits from the injector, the walls of the combustion chamber and the valve. To remove all deposits from the injection system, a continuous flow of reagent is required. The procedure takes about 30 minutes. The pressure should be from 2 to 4 atmospheres.
Since nozzles can be cleanedeach should be careful. To prevent the liquid from entering the gas tank, it is recommended to completely turn off the fuel supply system. After all, the reagent dissolves almost any deposits. Their accumulation in the gas tank can cause clogging of the intake grid of the fuel pump, as well as the fuel filter when fuel is supplied to the engine. As a result, ultrasonic cleaning of the injector may be required. In this case, the fuel pump will have to be replaced.
Cleaning nozzles, the price of which depends onSeveral factors are accomplished by feeding the reagent into the system. Specialized services use a special device. At home, almost no one uses it, since such a unit is expensive. To buy the device simply does not make sense.
For washing nozzles at home, you canuse a device assembled from scrap materials. The unit will be a simplified version. So that during the procedure the reagent does not get into the gas tank, the injector is recommended to be removed from under the ramp.
To perform the procedure at home, it is worth preparing:
First you need to disconnect the wire "-" frombattery, and then remove the nozzle. To do this, remove the corrugation, throttle body and manifold from the air filter. After that, with the BDZ, you need to disconnect the cable of the gearbox and accelerator, the heating hose of the BDZ and the breather, as well as all other hoses that go to the injector, and the injectors. As a result of the manipulations done, a ramp will be noticeable.
The parsing process does not end there.In order not to get fuel on the ramp, it is necessary to unscrew the fuel supply return pipe located near the power steering tank. It is not difficult. Fastened to the return ramp with two bolts, as well as to the side with one bolt with two washers. When carrying out all manipulations, it is recommended to lay a cloth on which the fuel residues will drain. Now it is worth twisting the three bolts that hold the ramp. Raising it, you can remove the nozzle.
Так как промыть форсунки без специальной системы impossible, then you need to collect it. To do this, take a reagent bottle and fasten a piece of hose to its lid, securing it with hose clamps. The output of the injector should be placed in a plastic container, the volume of which is 1.5-2 liters. This will drain the reagent. The insulation on the charger should be cut, and then connected using the terminal with the button red wire “+”, and the wire “-” should be fixed with the terminals to the nozzle contact.
Now you need to turn on the light bulb at 12 volts.This is required so that during the operation of the system the winding does not burn at the nozzle. With a light bulb you need to connect the second contact details, and the second wire to attach to the button. To check the operation of the circuit, you must turn on the network charger. At the same time, the light bulb should light up and a click will sound that indicates the opening of the nozzles.
So how do you clean the nozzles yourself?If the circuit works, you can proceed to the removal of pollution. To do this, it is necessary to create pressure in the hose. It is enough to press the button of the reagent cylinder, while releasing a small amount of fluid into the hose and the closed nozzle.
At the same time care must be taken.The hose on the cylinder cap must be tightly fastened. Otherwise, overpressure can compromise the integrity of the system. After that, it is necessary to simulate the opening of the nozzle by pressing a button in the chain. As a result, the injector must release a cone-shaped liquid stream into a plastic container. The process must be repeated until the system is completely cleared. The same should be done with each nozzle.
In conclusion, it is worth replacing at the ends of the parts.sealing rings. After flushing, the injector can be returned to its place and fix all hoses and wires. How much does nozzle cleaning cost? The price for a similar procedure in the cabin ranges from 1000 to 2500 rubles. At home, however, the costs are insignificant: 2 bottles of liquid.
Nozzle cleaning fluid should be selected carefully. After all, much depends on the reagent. Among the most popular brands of such liquids are:
This method is the second most effective.Injectors are cleaned in this case only with the help of special devices. Such equipment allows not only flushing nozzles, but also to diagnose. When cleaning, the injector is completely removed from under the ramp, and then lowered into the tank with a special solution.
The bath where the part is located is affectedultrasound. Due to this mechanical cleaning of the surface of all nozzles is carried out. This removes contamination from several injectors at once. The first stage is carried out sparingly. After that, the test is carried out by simulating fuel injection. At the same time quality of dispersion is estimated. Choosing a method for cleaning the injectors, it is worth considering that the injector can be made of a fragile alloy. When sonicated, the part can be badly damaged. Therefore, experts recommend carefully select the power of exposure. At the same time it is worth starting with the smallest, gradually increasing it.
For this cleaning will require:
First you need to remove the injector from under the rampas described in the previous method. Water should be poured into the container and then the powder should be poured. Ultrasonic machine and nozzles should be placed in the liquid. Now you need to start the normal wash cycle. After half an hour it is recommended to change the water.
Cleaning should continue untilalmost completely the smell of fuel will not disappear. On average, the process lasts about 5 hours. In conclusion, it is worth changing the gasket gum, check the operation of the injector, and then return the part to its place.
So, how to clean the nozzles at home?Which method is better? As practice shows, the best way to remove scale is to flush the injector with a special liquid. If the nozzles are not very dirty, you can clean them with ultrasound. It is worth noting that the latter option is much cheaper if you contact a car wash. The cost of cleaning the injector with ultrasound is, as a rule, 300 rubles.
