How to set idle speed on a VAZ 2106

Symptoms of a problem

If the carburetor begins to produce a rich mixture, you will understand this by the following signs:

Fuel consumption increases
Loud exhaust is heard from the muffler and the smoke turns black

If the engine receives a lean mixture, you will understand this by the following sign:

Loud bangs are heard from under the hood.

In both cases, the engine heats up noticeably more, and its power is also lost.

If you encounter a similar problem, remember that it is a natural consequence of using the carburetor. Any element of the car requires care, regular inspection and maintenance. Therefore, the VAZ 2106 carburetor must be adjusted from time to time.

Before proceeding with the adjustment, you need to make sure that the cause of the breakdown is not the failure of any element inside the device. You need to disassemble it, wash it and clean it. And only after you are convinced that all components of the structure are in full working order, you can begin adjustment.

The easiest option is to send the car to a specialist. Carburetor technicians have a special tool - a gas analyzer. Using this device, you can achieve the most efficient system setup. However, the services of specialists in this profile are not cheap. You may want to do all the work yourself, using available materials. Next we will look at how to set up a carburetor step by step.

VAZ 2106 carburetor: design and features

So, if the adjustments are violated, when preparing the fuel-air mixture, the fuel-air ratio is disrupted. As a result, a lean or enriched combustible mixture begins to enter the internal combustion engine. This has a bad effect on the operation of the carburetor and the engine as a whole, fuel consumption increases, detonation occurs, etc. In the worst case, breakdowns occur and the internal combustion engine needs to be repaired.

To prevent this from happening, you need to know the symptoms of malfunctions in the dosing device, pay attention to adjustments and a number of other features. First of all, the VAZ 2106 carburetor, as mentioned above, is designed to prepare the optimal composition of the fuel-combustible mixture, which is supplied to the cylinders of the car’s power unit.

Mixing of fuel and air occurs in certain proportions, the efficiency of fuel combustion depends on this. The ratio may vary depending on the operating mode of the engine. On VAZ 2106 cars you can find different modifications of carburetors: Ozone, DAAZ, DAAZ-21053 (Solex).

One of the most common is Ozone, the distinctive feature of which is fuel economy and reduction of exhaust toxicity. Let's look at this device in more detail.

Main components:

• float chamber (it contains a float to control the fuel level); • econostat (providing fuel to the internal combustion engine when operating at high speeds); • idle system (maintains stable engine speed when the throttle valve is closed); • accelerator pump (provides additional fuel); • starting system (air supply adjustment via air damper); • transition system (enrichment of the combustible mixture during the transition from idle mode to operation of the main dosing systems).

Adjusting the drive

Checking the length between the tips. The required size is 80 millimeters.
If you deviate from this size, remove one tip.
Loosen its lock nut and by rotating adjust the distance to the desired size.
Tighten the nut and return the rod.
You need to check the adjustment. To do this, our assistant presses the gas pedal. We observe the throttle valve to see if it has opened completely.
If not, then you need to remove the tip from the lever and reduce the length of the rod.
Now you need to see what position the damper is in when the gas pedal is released: does it close completely. If not, the pull needs to be lengthened a little.
Next we work with the air damper. We weaken its drive. In the cabin, we completely recess the damper.
Press the three-arm lever so that the flap opens all the way. In this position, tighten the locking screw.
Checking the adjustment. To do this, we completely close and open the door from the passenger compartment again. If the damper has not opened completely, we carry out the adjustment again. If the outcome is positive, fully tighten the screw.

Adjusting the starter

These works can be performed directly in the car. But you will have to first remove the filter cover.

We turn out the plug. Underneath we find the adjustment screw.
If you carry out the work without removing the carburetor from the car, pull out the choke. If you have the device in your hands, press the three-arm lever. After the damper is completely closed, push the rod down until it stops.
Let's see what the gap is between the camera and the air damper. A 5.5 mm drill will help us with this.
If necessary, make adjustments by turning the adjusting screw using a screwdriver.
We return the plug back.
Now you need to check the distance between the camera and the throttle valve. The required size is 1 millimeter. A drill with a similar diameter is suitable for this. The gap is adjusted using a rod, which is either rearranged into a different hole or bent.

Adjusting the float system

Before you begin this work, you need to make sure that the needle valve is working reliably.

We take a measurement between the float and the gasket. This distance should be 6.5 millimeters. A slight deviation of 0.25 millimeters is allowed. You can also simply use a suitable drill bit to measure.
The clearance is adjusted by changing the angle of the float tongue.
Turn the float all the way. We measure the distance to the gasket in this position. It should be equal to 8 millimeters. Using the tongue we achieve the desired value.

Adjusting the idle speed on a VAZ 2106

First you need to prepare the car. We warm up the engine to a temperature of 900 degrees. We ensure that the engine operates stably at idle speed.

Let's watch a video in which everything is shown in an accessible and understandable way:

The text instructions are as follows:

Using the quantity screw, we achieve a crankshaft speed of 820 to 900 rpm.
Using the quality screw, we bring the unit into stable and uniform operation. Then, by tightening the screw, we destabilize the operation of the motor and unscrew it again to restore it. Our task is thus to achieve the most stable engine operation with the leanest possible mixture.
Using the quantity screw, we again bring the speed to the desired value.
It is best to carry out the operation two or three times.

Do-it-yourself carburetor adjustment for VAZ 2106

A carburetor is a component that prepares the fuel mixture for the engine. Its task is to ensure the correct proportions of mixing air with gasoline. The ideal ratio is: 1 portion of gasoline per 15 portions of air. During operation, the adjustment of the VAZ 2106 carburetor gradually gets lost, which leads to excessive enrichment or depletion of the fuel mixture with gasoline.

Symptoms of a problem

If the carburetor begins to produce a rich mixture, you will understand this by the following signs:

Fuel consumption increases
Loud exhaust is heard from the muffler and the smoke turns black

If the engine receives a lean mixture, you will understand this by the following sign:

Loud bangs are heard from under the hood.

In both cases, the engine heats up noticeably more, and its power is also lost.

Adjusting the drive

Checking the length between the tips. The required size is 80 millimeters.
If you deviate from this size, remove one tip.
Loosen its lock nut and by rotating adjust the distance to the desired size.
Tighten the nut and return the rod.
You need to check the adjustment. To do this, our assistant presses the gas pedal. We observe the throttle valve to see if it has opened completely.
If not, then you need to remove the tip from the lever and reduce the length of the rod.
Now you need to see what position the damper is in when the gas pedal is released: does it close completely. If not, the pull needs to be lengthened a little.
Next we work with the air damper. We weaken its drive. In the cabin, we completely recess the damper.
Press the three-arm lever so that the flap opens all the way. In this position, tighten the locking screw.
Checking the adjustment. To do this, we completely close and open the door from the passenger compartment again. If the damper has not opened completely, we carry out the adjustment again. If the outcome is positive, fully tighten the screw.

Adjusting the dampers

The VAZ 2106 carburetor must first be removed. How to do this is described in the article:

The following step-by-step photo instructions will help you understand the adjustment process:

Adjusting the starter

These works can be performed directly in the car. But you will have to first remove the filter cover.

We turn out the plug. Underneath we find the adjustment screw.
If you carry out the work without removing the carburetor from the car, pull out the choke. If you have the device in your hands, press the three-arm lever. After the damper is completely closed, push the rod down until it stops.
Let's see what the gap is between the camera and the air damper. A 5.5 mm drill will help us with this.
If necessary, make adjustments by turning the adjusting screw using a screwdriver.
We return the plug back.
Now you need to check the distance between the camera and the throttle valve. The required size is 1 millimeter. A drill with a similar diameter is suitable for this. The gap is adjusted using a rod, which is either rearranged into a different hole or bent.

Adjusting the float system

Before you begin this work, you need to make sure that the needle valve is working reliably.

We take a measurement between the float and the gasket. This distance should be 6.5 millimeters. A slight deviation of 0.25 millimeters is allowed. You can also simply use a suitable drill bit to measure.
The clearance is adjusted by changing the angle of the float tongue.
Turn the float all the way. We measure the distance to the gasket in this position. It should be equal to 8 millimeters. Using the tongue we achieve the desired value.

Adjusting the idle speed on a VAZ 2106

First you need to prepare the car. We warm up the engine to a temperature of 900 degrees. We ensure that the engine operates stably at idle speed.

Let's watch a video in which everything is shown in an accessible and understandable way:

The text instructions are as follows:

Using the quantity screw, we achieve a crankshaft speed of 820 to 900 rpm.
Using the quality screw, we bring the unit into stable and uniform operation. Then, by tightening the screw, we destabilize the operation of the motor and unscrew it again to restore it. Our task is thus to achieve the most stable engine operation with the leanest possible mixture.
Using the quantity screw, we again bring the speed to the desired value.
It is best to carry out the operation two or three times.

Carburetor diagnostics after adjustment

Now you need to make sure that all settings are set correctly. To do this, you need to start the engine and watch it idle. Is he starting to trip? Next, press the accelerator sharply and also sharply release it. Can you hear any dips? If yes, the fuel quality adjustment screw needs to be unscrewed a little.

During heavy braking, the engine should continue to operate stably. If it stalls, you need to slightly unscrew the quality screw.

Thus, you now know how to adjust the carburetor on a VAZ 2106 on your own without special tools.

Experienced carburetor technicians! If you find inaccuracies in the article and want to share your experience, write your comments. Your opinion will be very useful to all readers of the site. Sixes are often equipped with DaAZ and Solex carburetors. Is there a fundamental difference in adjustment between them? Also interested in your opinion.

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Carburetor diagnostics after adjustment

During heavy braking, the engine should continue to operate stably. If it stalls, you need to slightly unscrew the quality screw.

Thus, you now know how to adjust the carburetor on a VAZ 2106 on your own without special tools.

This article is part of a series of 9 lessons dedicated to 7 carburetors. To view all nine lessons, follow the link: //7vaz.ru/chto-takoe/karbyurator.html

If your car starts to stall at idle, then the fuel filter needs to be properly adjusted or cleaned.

Adjustment

To adjust the idle speed, the only tool you need is a flat, narrow screwdriver, preferably with a short handle. Adjusting the idle speed should only be done when the engine is warm. The timing and ignition clearances must be adjusted. If the adjustment is carried out on a cold engine, it will not bring the desired effect and it will not be possible to achieve stable performance.

Idle speed adjustment is carried out using 2 adjusting screws: 1st - the quality of the mixture and 2nd - its quantity (Fig. 2). By default, at the factory, adjusting screw 2 is equipped with a restrictive sleeve, which acts as a seal. Thus, the manufacturer indicates that the rotation of the screw is within the factory range. For complete adjustment and when it is not possible to adjust the idle speed, the restrictive sleeve is removed and the basic adjustment is carried out.

Use screw 1 to set the crankshaft speed to 900 min.-1. They can be checked on a special stand or using a tachometer located on the instrument panel.

Using screw 2, you need to achieve a CO2 value that falls within the range of values from 0.5 to 1.2%. A special device will help with this - a gasometer.

The rotation of screw 2 helps to change the crankshaft speed. In this case, we again adjust and set screw 1 to the value of the rotation speed within 900 min.-1.

The correct idle speed setting is checked by pressing the accelerator pedal and releasing it sharply. The crankshaft rotation speed should increase smoothly and without failure, and then decrease as well. The engine should not stall. If this happens or jerks are observed when you press the gas pedal, the setting must be repeated.

It is recommended to place the limiting bushings on the adjusting screws, focusing on the mounting lugs. After completing the idle adjustment, the engine should run stably.

Repair of the solenoid relay follow the link.

gone missing

I had this happen too - I needed to thoroughly flush the bottom of the carburetor, check and, if necessary, replace the needle valve and adjust the position of the float. Particularly check the idle jet on the back of the carburetor opposite the valve cover.

Check the condition of the contacts, the integrity of the central high-voltage wire and the resistance of the slider. The ELXX valve on the Azon carburetor may be faulty, the tube may have broken or fallen off. A carburetor malfunction is also possible.

How to setup

To solve the problem of how to adjust the idle speed on a VAZ 2106, you need to stock up on a set of driver’s tools, although one screwdriver is enough for this technological operation. On the Internet you can watch the “VAZ 2106 idling” video clip about carrying out adjustment work to stabilize the idling speed of the vehicle.

To adjust the idle speed of the “six” carburetor, a number of preparatory conditions must be observed. These include:

Preparatory stage

An obligatory point when adjusting the VAZ 2106 carburetor is preparing the place for repair work:

The selected area for repairs must be clean, free from dust and dirt, and work must be carried out on clean rags.
It is also necessary to prepare the metalworking tools necessary for the production of technological operations.
To replace individual components of the product, you need to purchase a repair kit, which contains new rubber and other products for the work.

After this, we disassemble the “six” carburetor, then proceed to the main stage of work, such as adjusting the VAZ 2106 carburetor, video instructions for which can be viewed on our Internet resource.