DAAZ 2107: carburetor, its device and adjustment

2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42

Owners of "Classic" type cars often face problems with dynamics and fuel consumption. Drivers call a car engine a heart, and a carburetor can be safely compared to a heart valve. It is from the last detail that fuel consumption depends, and the dynamic characteristics depend on its correct adjustment. In this article, we will learn about how the carburetor works (VAZ 2107 DAAZ). We will also look at how to properly regulate it.

Principal arrangement of DAAZ parts for classic VAZ models

The operation of any automobile internal combustion engine directly depends on the quality and quantity of the mixture of fuel and air. This same mixture is prepared directly by the carburetor. In addition, this device evenly distributes the mixture throughout the combustion chambers.

Carburetor (VAZ 2107 DAAZ) consists of several main parts. This is a diffuser, a throttle valve, as well as a jet and a float chamber.

Typesdevices

If an old engine is installed on a car, then such cars are equipped with carburetors DAAZ 2107 - 1107010. With new engines and a vacuum corrector, a new model or modification is used. This model is DAAZ 2107 1107010-20.

These products are produced at the Dmitrovgrad plant of automotive components. This enterprise has been producing various equipment for classic VAZ models for quite a few years now. DAAZ 2107 (carburetor) among drivers has earned special trust as quite reliable.

Complex and highly accurate instrument

The carburetor is a complex device, consisting of many different components. But a complete device is necessary only for those who are professionally involved in setting up and adjusting these devices.

However, despite all the difficulties and a large number of details, let's look at how this device works more specifically.

So, what device does the carburetor DAAZ 2107 1107010 have? This device consists of a float chamber into which fuel is supplied in a limited amount. Access to gasoline is closed by a needle valve, as well as a float, which in appearance resembles a barrel. Gasoline is mixed in a special mixing chamber. Also, the carburetor consists of a throttle, as well as an air damper. In addition to them, jets are also included in the device. Fuel is sprayed by means of a sprayer. One of the important components of a carburetor is diffusers. They work like nozzles, createairflow configuration.

DAAZ 2107 carburetor: working principle

When fuel enters the float chamber, the amount of fuel is controlled by the float. If it pops up, then the needle mechanism will block the access of gasoline to the chamber. So, the camera in this case resembles a toilet bowl. Everything is the same here. But fuel is not supplied immediately. It will first pass through a special filter to be purified.

Further, the device supplies flammable liquid to the first and second fuel chambers. The DAAZ 2107 carburetor (device) provides for the presence of main fuel jets through which fuel passes.

In addition to gasoline, air is supplied to the chambers through air jets, which has previously been cleaned in air filters. Air then with the help of special tubes and wells forms a mixture with gasoline. So, the so-called emulsion is obtained.

But that's not all. Before entering the combustion chambers through the atomizer, the mixture passes through the econostat. Here the mixture undergoes additional enrichment.

Further, with the help of atomizers, the mixture enters the diffusers. Here is the final preparation of the mixture. The carburetor of a VAZ 2107 car (DAAZ'ovsky production) is designed in such a way that fuel droplets in diffusers are drawn into a high-speed air stream. Thus, the air-fuel mixture enters the center of the mixing chamber.

The gas pedal on VAZ cars regulates the position of the throttle valve, which is designed to supply the mixture directly to the engine cylinders.

What else is special about the DAAZ 2107 carburetor? Its device includes jets for idling. In this mode, the mixture is taken only from the first fuel chamber. The principle and scheme of operation of the fuel chambers activates the second chamber only when the engine reaches operating temperatures. II camera also turns on if you need to quickly gain momentum and high speed.

Differences in modifications

As you know, in the latest models of the VAZ 2107 and other versions, a new carburetor DAAZ 2107 1107010 20 is installed. Let's see what is the difference between this modification and the old carburetor 1107010.

According to information received from AvtoVAZ specialists, these two modifications are based on the same model. Here the fundamental difference between them is the economizer for forced idling. Model 1107010 has EPHH, and the new modification is not equipped with this unit.

Although the DAAZ 2107 20 carburetor was not equipped with an economizer, it is equipped with a special fuel jet. The difference is that here the idle speed is controlled by an electromagnetic shut-off valve. So, if the ignition is turned off, then the fuel supply is cut off.

Carburetor DAAZ 2107 1107010 - adjustment

Before proceeding to the adjustment, you need to find out which of the two modifications is installed in your car. So, if the car is equipped with a vacuum ignition corrector, then the internal combustion engine of the car is the latest model of VAZ 2103 or 2106 engines, and the carburetor modification is new. If you notfound a vacuum corrector, then you have a carburetor DAAZ 2107 1107010.

Main malfunctions

In order to be able to make adjustments, you need to know a few typical faults. Since this node is responsible for the dynamic characteristics, breakdowns include:

• Problems when starting the engine, engine sneezing.
• Jerks, jerks, frequent failures on the accelerator pedal.
• No overclocking options.
• Growing fuel consumption.

So, if during the operation of your car you were able to fix one or more of the malfunctions from this list, then the parts need repair.

You need to know that it is possible to adjust the carburetor DAAZ 2107 1107010 as much as possible only with the assembly removed. The process does not include cleaning this device with fluffy or woolen rags. Also, no wires are needed to clean the jets.

First, when self-adjusting, you must first remove the cover from the assembly. Then you can move on to adjusting the float chamber. It's convenient.

Adjust the float chamber

Float has free play. The stroke size should be between 6.5 mm on one side and 14 mm on the other side. Adjust the stroke using a special template.

If your chamber has a shorter distance, you may need to bend the needle valve tab slightly.

Now you can adjust the operation of the needle valve. When the float rises, less fuel is delivered. If throttledamper opens, fuel consumption is higher, and the float goes down. To adjust the float on the other side, it is necessary to move the float back as far as possible and check this parameter using the same template. If the distance is not 14 mm, then the mount stop should be bent.

Setting up the launcher

Adjustment includes the process of adjusting the starting device. For old-style devices, it operates at a frequency of 1500 revolutions. If you examine the DAAZ 2107 (carburetor for the "seven") on the other hand, you can see a special channel. If you remove the assembly and inspect it from behind, you can see the channel for the air supply.

To adjust, first you need to remove it. Then you need to turn the lever so that the air damper is completely closed. Next, turn the device over, and then measure the gaps between the damper and the wall. For our carburetor, the gap should be 0.85 mm. To bring the gap to the required size, it is necessary to bend the drive rod.

Next, you need to adjust gap A. You can find it between the channel wall and the edge of the damper at the bottom. So, you need to close the damper and drown the rod of the starting device. As a result, it will open, and the gap should be from 5 to 5.4 mm. To adjust, you need to rotate the screwdriver adjusting screw.

Set idle speed

First of all, you should make sure that the ignition is adjusted correctly. The engine must be at operating temperatures. To adjust, turn the adjusting screwfuel mixture until the engine speed reaches maximum.

Next, turn the fuel quantity screw counterclockwise. More RPM should be achieved.

Now turn the quality screw some more to add some more turns.

The meaning of these operations is to ensure that the quality of the mixture is minimal, and the idle speed is from 850 to 900. These are the most optimal values for carburetor engines of cars of the "Classic" family. Turnovers should not be made more or less than this value, as they will be considered unstable and will entail increased wear of KShM parts.

We looked at several possible DIY adjustments. But if you are not sure of your actions, it is still better to entrust your DAAZ 2107 (carburetor from the "seven") to a specialist who is well versed in them.