Features of the carburetor type Pekar 2107 1107010 20

The cars of the Volga Automobile Plant of the seventh model were equipped with gasoline engines of various modifications. The carburetor 2107 1107010 was installed on power units with a working volume of 1500 cubic meters. cm and provided him with sufficiently high technical characteristics. A detailed description, calibration data are given in the vehicle manual. Here you can also find the procedure for setting up the device for operation in different modes.

The mentioned model of the carburetor was developed by the specialists of the Dimitrovgrad Automobile Unit Plant according to the technical specifications of AvtoVAZ. Later, the production of this device was established at the Leningrad plant, where it received its own name Pekar. Under this trademark, the device is supplied to the market of spare parts for VAZ cars of various modifications.

In terms of design, this device is absolutely identical to DAAZ products, at the same time, specialists and car owners note the high quality of components and assembly. At the same time, the cost of the Pekar carburetor is much lower than that of analogues. This circumstance explains the fact that this unit is increasingly used on VAZ cars of various models, including the famous seven.

Carburetor device

This device is designed to create a fuel-air mixture of a certain composition on VAZ engines of different models. The Pekar brand carburetor has the following device:

1. float chamber;
2. main dosing systems - two circuits;
3. membrane type starting device;
4. enonomizer and driven by a pneumatic device;
5. diaphragm accelerating pump;
6. idling system with electric shut-off valve;
7. transitional system for switching on the secondary chamber.

On carburetors of the Pekar type, which are intended for installation on VAZ cars, it has a special device to ensure ventilation of the engine crankcase. The gases escaping into the body of the power unit through a tube enter the car's combustion chamber through the carburetor. This makes it possible to reduce the toxicity of the VAZ car engine to an acceptable level. The Pekar model carburetor is more reliable than analogues.

Carburetor specifications

Products of the Pekar trademark, which are intended for use on VAZ power units, do not differ from similar DAAZ devices. The main parameters of this type of carburetor:

1. Dosing systems: primary chamber diameter - 28 mm, secondary - 32 mm
2. The geometry of diffusers: chambers No. 1 - diameter 22 mm and No. 2 -25 mm;
3. Fuel jets of the main dosing system, for the primary chamber - 1.12 mm, for the secondary - 1, 50 mm.
4. The dimensions of the air jets of this system for both parts of the device are 1.5 mm.

The main indicators of the unit for the transition system of the carburetor, which provide it with a sufficiently high throttle response, are size and performance. The diameter of the hole designed to provide preparatory processes when connecting the secondary chamber of the device. By sequentially pressing the lever ten times, up to 7 ml of fuel is injected into the chamber. This allows, when using the Pekar brand carburetor, to achieve a sharp acceleration of the VAZ car.

Idle speed adjustment

Setting up a working device designed for mixture formation is carried out using the following devices and tools:

1. built-in or plug-in tachometer;
2. a device for determining the toxicity of exhaust by the content of carbon monoxide;
3. flat-head screwdrivers.

The procedure for making adjustments to the Pekar-type carburetor on VAZ engines is as follows:

1. In the float chamber, the level is checked using a special template.
2. We check the gaps between the contacts in the ignition distributor and the condition of the spark plugs. They must match the heat rating of the engine.
3. The power package will start and run without load until it reaches operating temperature.
4. By turning the screw for the amount of the mixture, we set the crankshaft rotation frequency in the range from 820 to 900 rpm.
5. By tightening the mixture quality screw, we simultaneously control the CO concentration in the exhaust. At an air temperature of 20 ° C and normal atmospheric pressure, this figure should be between 0.5 and 1.2%.
6. By screwing the amount of the mixture of the Pekar-type carburetor, we are again trying to restore the idling parameters of the VAZ engine.

A serviceable and adjusted carburetor 2107 1107010 provides economical fuel consumption.