Carburetor VAZ-2101. Repair kit carburetor. How to choose a carburetor on VAZ-2101?

In this article will be told about the carburetor VAZ-2101. This is the main element of the fuel injection system. And problems with the carburettor quite a lot. And not everyone knows how to properly make repairs and adjustments. Good masters sometimes can not be found with fire. Of course, before you sin on the injection system, you need to make sure that it was she who broke down. Because the dips during acceleration, the long engine start, its uneven operation can be caused not only by malfunctions in the fuel system, but also in the ignition.

Carburetor "pennies"

On cars VAZ of a classical series, in particular on model 2101, some types of carburettors are established. In them, there are certain differences, for example, the size of jets, the presence of a vacuum corrector. If we talk about the carburetor penny, it is suitable for installation only on the engines used in this model of cars. The reason for this is that the tumbler is used without a vacuum corrector. More modern machines are equipped with ignition systems, in which the distributor is adjusted by vacuum. And we are talking not only about BSZ, but also about contact (classical). In the conditions of the garage to carry out service and adjustment of the carburettor it is difficult enough as presence of not only the tool, but also knowledge, understanding of a principle of work of system of injection is required. But most importantly, you need to know how the carburettor is connected to the fuel delivery system.

Carburetor systems "pennies"

But you can manually adjust the idle, clean jets, visually assess the state of an element such as an accelerator pump, and in case of breakage, replace it. It is also possible to change all gaskets, O-rings, clean the fuel channels to bring the injection system into a normal state. It should be noted that all adjustments should occur not as though, but taking into account the percentage of CO ₂ in the exhaust system. It should be noted that the carburetor VAZ-2101 contains a float system, which allows you to maintain the required level of gasoline, as well as to adjust it. The accelerating pump, the main metering system, the econostat, the idling speed adjustment mechanism - we will describe each of these systems in more detail.

The float mechanism of adjustment of level of gasoline

And it's worth starting with a float design. To maintain a normal level of gasoline, you need a float mechanism, which is installed in the same chamber. If there is a very small or very large level, then the engine will not work properly. Often, such a malfunction occurs when there is a leak in the needle valve. In the event that gasoline of poor quality is used, there are impurities in it, the carburetor VAZ-2101 will quickly become clogged. Impurities fall into the carburetor system and clog the holes. Therefore, it is necessary to carefully inspect the entire fuel line, replace the filters, and then clean the valve. If necessary, adjust the level of gasoline in the float chamber.

Starting system and solenoid valve

Very often in the carburetor "penny" breaks the startup system, as well as idle. If the air damper is not closed completely during the cold start of the engine, then it will be very difficult to start it. Of course, any jet carburetor could simply clog. In this case, complete cleaning will help. To get rid of all the problems, you must thoroughly clean the air damper drive. And also, if necessary, adjust this drive in such a way that the clearance is normal between the carburettor wall and the damper itself. In the event that the engine starts to stall while idling, first of all you need to diagnose the electric valve. In particular, there is sometimes a loss of voltage, which is supplied from the ignition lock to this mechanism. To check it, just connect the center of the wire to the positive terminal of the battery with a piece of wire . If there is no click when the power is connected, this device is burned. Therefore, it is necessary to change it. If there is a click, it is necessary to unscrew the solenoid valve. After that, cleanse its channel, and also the jet.

Idle: setting

Similarly, a new carburetor is also tuned. Carefully study how this process is going on. To make the adjustment of idling, you need to know how many revolutions the engine should develop in this mode. You need to achieve an average frequency of 850 rpm. A screw for the quantity and quality of the mixture is provided for adjustment. First, rotate the quantity screw to achieve the rated speed. Then, rotating the quality screw, you achieve the maximum speed. After this, rotate the quantity screw and reduce the rotation speed to the original 850 rpm. Then we start playing with the quality screw again. It is necessary to bring the engine to such a state, when it starts to shake. The final adjustment is made by rotating the quality screw a few revolutions counterclockwise so that the engine works as stably as possible.

Throttle valves

Please note that you must use the cleanest gasoline. The carburetor will quickly become unusable if there are impurities in the fuel. The first step is to adjust the throttle position in the carburettor. For adjustment, it is necessary that they are fully opened. Check their position by turning the drive lever all the way. In the primary chamber, it is necessary that the flap opens approximately 13 millimeters. The error is not more than 0.5 millimeters. This parameter can be changed if the lower tendril is bent in the right direction. The secondary chamber should be opened for a maximum of 15 millimeters. The error is the same as for the primary camera. The size of the opening can be regulated only by unscrewing the rod that is located on the pneumatic drive. The damper in the primary chamber is not fully open, the antennae on the levers must begin to touch.

Needle valve

When the lever is rotated to the stop, the carburettor flap must be closed, by means of which the amount of air is regulated. Please note that when adjusting it is necessary that when the air damper is closed, the primary chamber is ajar not more than 0.8 millimeters. In order to adjust the accelerator pump, it is necessary to rotate the lever, which controls throttle valves ten times. At the same time, the gasoline that leaves the atomizer must be collected in a beaker, which then measures the volume. The maximum value should be 8.75 cubic centimeters. Pay attention to the fact that before starting the test, it is necessary to pump the pump with the lever so that all channels are filled to the maximum. It is imperative to check the carburettor needle valve tightly during all repair work. It is desirable to carry out this work on a special stand. With its help, it is possible to supply gasoline to the carburetor under a certain pressure. And to control whether the needle valve can withstand the load.

Carburettor Repair Kit

Note that with the apparent uniformity of all carburettors, the repair kit may be very different. When going to the store to purchase a repair kit, you need to pay attention not only to the car model, but also to the type of carburetor itself. In other words, if you have "Solex" installed, the car repair kit "Ozone" simply will not suit you. Usually in the repair kit there are two gaskets that are located between the parts of the carburetor. Also it includes fuel and air jets, accelerator pump, needle valve, fuel filter, like a thimble, spring. Adjust the carburetor VAZ-2101 only if all its elements are usable. In addition, the repair kit should have several rings of rubber. Pay attention that it is necessary to buy original kits that are produced in the territory of our country, and not in China. Unfortunately, the latter may not contain some elements that need to be changed when carburetor repairs are carried out. At times even at them very low quality, and also there are differences in the sizes. Therefore, they simply can not be established.

Conclusion

Now you know the basic information about the design and tuning of the carburetor VAZ-2101. Despite the relative complexity of the system, adjustment can be done without much difficulty on their own. Of course, you will need a carburetor repair kit, which can be purchased at any auto parts store. Carefully look at the carburetor of which manufacturer is installed on your car. After all the repair kit from "Ozone" to "Weber" or "Solex" can not be installed, they have completely different designs.