Causes of malfunctions of carburetors on the VAZ 2121 Niva and self-repair

Published:

21.03.2017

The carburetor of any vehicle should be maintained in full working order at all times. Indeed, due to its incorrect operation, a number of malfunctions can occur in the engine and, as a result, there will be a reason for serious repairs. If the engine of your Niva 2121 or 2131 car does not want to start, and even if it does start, it runs unstable or immediately stalls - and all this is combined with increased fuel consumption, which means that the problem definitely lies in the carburetor. But do not rush to contact a car service center for repairs or buy a new one, because it is likely that the Solex carburetor on a VAZ Niva car needs to be adjusted, and you can do this yourself in an ordinary garage.

The carburetor installed on the Niva is designed almost the same as on other cars of the VAZ family. That is, its design includes basic elements in the form of a float chamber, nozzle, diffuser, diaphragm, needle valve, economizer, solenoid shut-off valve, air and throttle valves.

The Niva 21213 car is equipped with a Solex carburetor - this unit provides high performance with minimal gasoline consumption. There is an opinion among car enthusiasts that this carburetor is quite “capricious” and very often begins to work incorrectly. In fact, the cause of the problem lies in the negligence of the driver himself, who uses low-quality fuel with large quantities of impurities. The device is demanding on the quality of gasoline, since it is taken from the lowest point of the float chambers. In addition, even if the Niva has a properly configured Solex carburetor, problems in its operation may arise due to untimely replacement and critical clogging of the fuel filter.

As for the Niva 2121 car, its engine, in addition to Solex, can be equipped with an Ozone carburetor. But in this article we will touch on the technology for adjusting the device only of the previously mentioned type. After reading the guide below, you can perform all the basic settings yourself.

Niva cars are equipped with Ozone or Solex carburetors

Niva index designations

The wiring diagram may vary slightly depending on the design features of the vehicle.
First, let's look at the index notation:

1. VAZ 21213. This index designates a vehicle equipped with a carburetor. The volume of the power unit is 1.7 liters.
2. 21214. In VAZ 21214 cars, the scheme involves the use of a similar engine with the same volume. The only difference is that the car is equipped with a fuel injection system.
3. There is another model with the index 21213. In VAZ 21213 cars, the electrical circuit includes the same elements, only depending on the year of manufacture, the car can be equipped with a 1.8 liter engine.
4. Version 21073. The SUV is equipped with either an injection engine with nozzles or a Solex carburetor engine. One of the features of these cars is a contactless ignition circuit.
5. 21215. These SUVs were originally produced for export, so these cars are difficult to find on our roads. It is worth noting that they were equipped with Citroen diesel engines.

At the beginning of the article there is a diagram of the VAZ electrical equipment using the example of the Niva 2121 model. If you are the owner of version 2131 or any other, then there will be a difference in the circuit diagram, but not fundamentally. If we are talking about carburetor engines, then in this case the circuit, as well as the ignition, will not be protected (the author of the video is Nail Poroshin).

Selecting a new part

Which carburetor to install on Niva 21213? Almost unanimously, experts choose the DAAZ 21083 model for the VAZ Niva 21213 with a 1.7 liter engine. This carb best meets the requirements of the internal combustion engine and significantly reduces fuel consumption. The disadvantages include a decrease in engine response due to the smaller diameter of the throttle valve, and a smaller float stroke. Installation and adjustment are quite possible without outside help. The cost is average (about 6,300 rubles), but the build quality and durability completely pay for it. Additionally you will need to consider:

• you will need a set of larger diameter fuel jets;
• you will have to buy a new throttle control system;
• you will need to bore the seat for a new carb.

You should choose a carburetor for Niva 21213 very carefully. Even factory-packaged components may be defective. So, for example, all screws must be secured with factory-made plugs, all moving elements must move without jamming. Such products are supplied from the factory already adjusted. Some elements (jet jets, repair kit) can be used from the old unit.

How to reduce fuel consumption on a VAZ 2121

moLife Blog Carburetor Pierburg 2E
Using a standard carburetor, the Niva consumes a large amount of fuel. Putting a Solex carburetor on the field does not mean that the problem is completely solved

It is important to monitor many other systems and the overall condition of the vehicle.

The following parameters affect fuel consumption:

Author of the article: Yuri Veselov

Why did it happen so?

Wiring diagram for VAZ 21213 Niva carburetor with description

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Which carburetor is better to put on the Niva

21213

The Russian auto industry, after more than fifty years, continues to firmly maintain its leading position in the car markets. The VAZ family has a completely reasonable price and is quite easy to maintain.

Great demand has appeared for the Russian jeep VAZ-21213, as well as its analogues. This type of VAZ car has achieved tremendous success in world motorsport, setting unattainable records. Working with vag-com, operating the Varta battery, taxi companies of the USSR, photos, how to sheathe a profile on the roof, what tires to put on a field in winter, Daewoo Winstorm Max, front hubs of a Chevrolet Niva. A similar model of car is very intensively exported to European countries and beyond.

Car enthusiasts who do not have much experience in servicing this type of car quite often encounter various problems associated with the operation and repair of the Niva. One of these common problems is carburetor repair and replacement.

Many drivers do not know which model is better

choose how they differ from each other and how to manage when choosing one or the other.

See:

Often the carburetors on different Niva models are very identical and are designed identically. They are located in the propulsion system and make the required combustible mixture from the fuel, combining the fuel with air, and feeding it into the engine. The carburetors are also designed identically. The main elements include:

1. Float chamber (jet).
2. Diffuser.
3. Throttle valve.

Depending on the car model, the carburetor can have from one to 4 chambers; the dampers can open one by one or at once; the movement of the flammable consistency can be horizontal, downward or upward.

For less experienced car enthusiasts, you can use a carburetor diagram, on which all the parts will be indicated and their position and functions described. With its help, it will be much easier to find and change this or that part.

The Niva 21213 model replaced its previous version, the VAZ-2121, and became more advanced and improved. The updated model now includes:

• 1.7-liter engine, the founder of which was the engine from the Russian “six”;
• five-speed gearbox;
• 
  Solex carburetor
• contactless ignition with microcontroller.

In order to always be confident in your car, you need to thoroughly know its entire “inner”, understand its features, and understand its details. Further in the article we will look at the structure of the Niva 21213 carburetor in order to have an idea about this part and know the intricacies of its operation.

How to carry out regulation using the example of a domestic carburetor

No idle speed for VAZ 2107 carburetor reasons. Idle speed of VAZ 2107 carb disappeared

The domestic “Zhiguli” carburetor “Ozone” is regulated by the supply of gasoline. At the same time, in the middle part of the designer they installed an “over-the-air” adjustment screw, this greatly expanded the range for settings of the machine unit. Before you begin the carburetor adjustment procedure, you need to make sure that the throttle adjustment drive is working properly and is not sticking. To do this, simply press the gas pedal. Then you need to set the ignition timing and adjust the gas distribution. These are complex engine tuning operations; each deserves its own article. Carburetor adjustment, so to speak, is the “finishing touch” to the final tuning of your car’s engine.

How is the idle speed of a VAZ adjusted?

1. First screw in the “quality” screw all the way to the limit.
2. Then carefully turn it back one and a half or 2 turns. This way your fuel mixture will be as enriched as possible with gasoline.
3. Now turn the “quantity” screw. It must be turned 2 turns from the point where the throttle valve turns. This will be enough to start the engine.
4. Then get into the car and start it.
5. After this, start turning the screw so that the amount of gasoline-air mixture with the throttle closed is sufficient for stable operation of the engine.
6. Using the same quality screw, achieve the composition of the mixture when the engine, when idling, begins to show the maximum number of revolutions. Carefully turn the adjusting screw and slowly reduce the speed to 900 rpm.

Experienced drivers perform this operation by ear. If the damper drive is adjusted properly, then at idle it will be completely closed, and when the gas pedal is pressed to the floor, it will open as much as possible. When the “quality” screw is screwed in as much as possible, the engine should stall. If this does not happen, you need to adjust the throttle valve (it is too open).

These are actually all the operations that are performed when adjusting the carburetor. If you were unable to do this the first time and the engine stalled, simply repeat the operation. You can check the setting this way: press the gas pedal all the way and lower it sharply. If the engine does not stall after this, but still produces the required speed, then everything is in order.

When adjusting using a gas analyzer, you need to rotate the mixture quality screw, observing the amount of CO. This is a rather complicated setting and is usually done in workshops, because it is necessary to ensure that the carbon monoxide content complies with GOST standards. However, it should be noted that in this way it is possible to adjust CO only at idle speed - the first measurement when passing a technical inspection at the traffic police. The second measurement, which is performed at engine speeds of 2000-3000 per minute, is slightly affected by this adjustment. The CO content at high speeds is determined not by the carburetor setting, but by the general condition of the engine and the quality of the fuel.

As you can see from the text above, adjusting the idle speed is not difficult, but it will require time, special tools and some skill if you want the carburetor to work really well.

At a minimum, you will have to open the hood and get your hands dirty. If you don't want to do this, then a great option is Uremont.com. This is a special aggregator of car services where you can place a request for the required operation, namely “carburetor idle adjustment.” Within a few minutes, you will begin to receive offers from service stations registered on this site, which received your application. All you have to do is choose the most profitable and convenient offer and take the car. All services of the Uremont.com website are free.

Adjustment

If the installed Solex 21073 carburetor on the Niva fails, repairs and adjustments help bring the device back to life. The settings allow you to restore optimal modes in which the motor will operate as efficiently as possible. Fuel consumption is at an average level. First of all, start the engine and warm it up a little. Next, you need to remove the fuel hose and the device cover. It is recommended to remove the latter with extreme caution so as not to damage the float. Next, using a measuring tool, measure the distance in each of the carburetor chambers. Measure from the mating surfaces to the edge of the fuel. This size should be approximately 24 mm. If this distance is less or more, then it is adjusted by bending the float. Then you need to start and warm up the engine again. When the level adjustments are successfully completed, you can proceed to adjusting the idle speed.

The engine is turned off. To set up, you will need a flathead screwdriver and a little time. There is a hole on the base of the device in which there is a screw that regulates the quality of the fuel mixture. It is twisted all the way. Then from the extreme position the same screw is unscrewed by about five turns. Then the engine is started. There is no need to use a suction. If you unscrew the “quality” screw, then the carburetor will change the engine speed. Then it is twisted again. It is required to rotate until the operation of the motor is stable and stable. When the engine starts to run smoothly, then the element is unscrewed no more than one turn. As a result, the idle speed will be set at 900. If the engine starts to stall, it is better to slightly increase the idle speed.

Carburetor calibration data

Do-it-yourself carburetor adjustment for VAZ 21213 video


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What is a carburetor

If we compare the carburetor Niva and the injection one, we can conclude that the first is more archaic and old. The carburetor is the main component in this system. That is, it is this mechanism that, during operation, mixes air with a portion of gasoline, thereby creating a flammable mixture. The system itself is a simple device. But, despite this, many car owners are not entirely happy with this engine, since quite often it let them down.

A carburetor engine contains: a float, jets, and needles. It is worth noting that all these mechanisms require regular cleaning and regulation.

If not the valve, then what?

Dirt, low-quality fuel, malfunction of the ignition system - all this separately and in the compartment can affect the idle speed disappearing or becoming unstable. If you have already decided to carry out a full diagnosis, then start with the filters - air and fuel.

If they are heavily clogged, then gasoline or air (these are the main components of the air-fuel mixture) will not enter the carburetor normally. To be more precise, they will hit, but only after overcoming great resistance. And don't forget about the thimble-shaped filter that is installed at the inlet of the carburetor.

The solution is to replace all the filters and not have to worry anymore. But if this does not help, then you have many more faulty nodes. This means it’s time to look at the spark plugs (at the same time, remember how long ago you changed them). Unfortunately, a rare spark plug will last more than 30 thousand km.

And this is about a year and a half of operating the car in average mode. Unscrew the spark plugs, look at the carbon deposits, whether there is any and what color it is. With a long service life, the central electrode of the spark plug wears out and the gap increases as a result. Replace the spark plugs and check if the idle speed is stable.

Does it still stall at idle and not hold the revs? Then the ignition system remains. If you have a contact one, then check the gap in the breaker and set the optimal advance angle. If contactless, then diagnose the switch and Hall sensor.

These two elements fail more often than others. However, there is nothing more to break. Also inspect the condition of the high-voltage wires and, if necessary, remove moisture or dirt from them. The distributor cover should be without damage, and the resistance of the resistor in the slider should be about 5.5 kOhm.

Idle system

The device is equipped with an idle system. It is designed to allow the engine to operate at low speeds. At this moment, the vacuum in the diffusers is very small. Fuel cannot enter the main metering system. At idle speed of the engine, fuel is supplied under the throttle valve of the first chamber of the carburetor. There the vacuum is strong enough to form a stable combustible mixture.

Air is supplied through the main jet and the emulsion well of the first chamber. The fuel will then flow to the idle fuel jet. After this, it is mixed with air supplied from the XX air jet. Oxygen is supplied to this element through a special channel. This operating scheme allows the engine to ensure a smooth transition from load to idle and prevents fuel from leaking out of the float chamber.

How to restore carburetor operation

For repairs, most often you have to remove the device from the engine. First, remove the air filter. Then the fuel lines, air pipes, wires and cables are removed. then unscrew the fastening nuts.

It is best to disassemble the carburetor on a table or other convenient surface. The parts should be laid out in some order. This will help you not lose them. The process of adjusting the needle valve is performed using a special template. To wash the device, you must use special liquids. Replacement jets can be purchased at any auto stores. Often, disassembling and flushing the carburetor helps solve a lot of problems.

Regulations for adjusting the carburetor on the VAZ 21213

Any work related to the engine or power system on the VAZ 21213 should end with adjusting the carburetor parameters. After carrying out the above procedures, you should sequentially perform a number of settings:

1. Throttle valve actuators
2. Air damper drive
3. Trigger
4. Automatic starter
5. Idle systems
6. Exhaust CO and CH concentrations

Some adjustments can be performed both on the removed device and directly on the machine. In case of sagging or high tension in the throttle valve drive cable, use the adjusting nut to set the desired position, having first unscrewed the lock nut. It is worth checking the distance between the centers of the tie rod ends, it should be within 80 mm. As a result, when the accelerator pedal is fully pressed, the damper is completely open, and when the pedal is released, it is closed.

The air damper drive rod should move freely in the shell, and the lever should rotate around its axis without effort. The handle recessed all the way in the car interior corresponds to a fully open damper (vertical position). When pulling the handle, the area of ​​the chamber inlet must be blocked. Deviations from these requirements are eliminated by adjusting the fastening of the cable sheath or repairing the drive lever.

The next step is setting up the starting device. By forcefully opening the air damper by 1/3 with a screwdriver, you need to set the speed to 3200 - 3300. Then remove the screwdriver and use the adjusting screw to reduce the crankshaft speed to 2800-3100 rpm. At this point, the adjustment of the VAZ 21213 carburetor can be said to be almost complete.

Adjustment of the exhaust gas system and the concentration of hydrocarbons in the exhaust can be done in one step. After starting the engine, you need to use the quality screw to set the maximum possible idle speed. Next, use the quantity screw to reduce the speed so that it is 50-100 units higher than the normal idle speed. After this, use the quality screw to achieve the desired value.

High-quality tuning of the carburetor unit is available to a car enthusiast with basic knowledge of the principles of internal combustion engines and a minimum of tools.

Despite the fact that the VAZ-2121 SUV was developed quite a long time ago, this car is still very popular. In 1994, the model was changed to VAZ-21213. Many people buy these cars because of their high cross-country ability, which can be the envy of some jeeps from famous brands. Others like reliability, unpretentiousness and high maintainability. A simple design and excellent off-road characteristics made this vehicle a vehicle for lovers of travel, hunting, fishing and tourism.

Niva cars 211213 are equipped with a 1.7 liter engine. It is carburetor, and is based on a VAZ-2106 engine. There is also a five-speed manual transmission and a proximity ignition system. The power system is equipped with a Solex 21073 carburetor for the Niva. Many novice car owners are intimidated by carburetors and everything connected with them. But a carburetor is not a death sentence. You just need to understand its basic structure, how to adjust it, and how to repair it.

Checking the operation of the second camera locking mechanism

Turn the air damper control lever counterclockwise until the damper is completely closed.

Then we turn the throttle valve control lever until the throttle valve of the first chamber is fully open.

The throttle valve of the second chamber must remain closed.

We turn the air damper control lever clockwise until it stops (the air damper should open completely), and the throttle valve control lever until the dampers are completely open.

If the throttle valve of the second chamber remains closed, it is necessary to eliminate the jamming of the locking lever of the second chamber (the reason may also be the disconnection of the locking lever spring).

Features of electrical equipment

The electrical circuit of the VAZ model 21213 has certain differences with the model 2121, in particular:

1. 21213 vehicles use more modernized foot fuses in the fuse box. Of course, the use of such devices led to the fact that the block site also became different.
2. The power supply system of these vehicles additionally includes an idle speed saving device. For this option to work properly, another connector with wiring was added in the engine compartment.
3. Another difference is that these cars use a non-contact ignition circuit, the main element of which is a microcontroller.

It should be noted that differences in the Niva circuit may lie both in the generator units and in the electrics themselves.

Differences in generators

In any case, the differences in the wiring diagram of the models will primarily depend on the power unit - carburetor or injection.

The main differences in carburetors:

• models 21213 use the generator unit model 371.3701;
• in the engines of models 21214, the manufacturer decided to install a more powerful generator device; it is marked with the numbers 9412.3701 (video author - Sergei Chekhonin).

And although these generators are different, they have certain similarities in design. In any case, it is a synchronous AC device. In addition, these units have a built-in rectifier and output voltage regulation mechanism.

Wiring differences

If we talk directly about wiring, then depending on the car model, it may also have differences. It should be noted that these differences greatly simplify do-it-yourself maintenance and repair of the system. As for injection modifications of SUVs specifically, in this case the system is equipped with three outputs intended for installing electronic ignition.

In addition, 21214 cars use two ventilating devices that perform the function of cooling the radiator assembly. Accordingly, due to the use of additional fans, the wiring also underwent, albeit not significant, differences. Of course, they are not fundamental.

Lada Niva 4x4

How to decide on a carburetor for Lada Niva 4x4?

Niva-2121, also known as VAZ-2121, is a popular small-class SUV with continuous all-wheel drive and a monocoque body. It is noteworthy that even the very first configuration of this car had the same markings on the engine - VAZ-2121. The car was also equipped with a DAAZ 2107-20 carburetor device, otherwise called “7-20”. If this unit fails, you will now have to choose a carburetor for the Niva from those that are produced today.

Main characteristics of the carburetor VAZ 2121, 21213

The carburetor got its name directly from the functions it performs - carburetion and mixing. In this unit, gasoline is mixed with air. The supply of the mixture that will end up in the engine cylinders is also regulated.

The carburetion process is also influenced by the design of the unit itself. The “native” carburetor for Lada Niva 4x4 includes:

• Float chamber (the volume of fuel contained in it affects the functioning of the optimal idle mode and a number of other systems);
• Jet (this element is responsible for dosing the volume of air-fuel mixture entering the VAZ 2121, 21213 carburetor);
• Diffusers (are narrowings of the carburetor pipes of both chambers, their function is to accelerate the air passing through the mixing chambers);
• The throttle valve (“manages” the cross-section of the channel, changing the volume of fuel or gas that passes through this channel).

Fuel is supplied through the carburetor VAZ 2121, 21213 of the old model as follows:

In the required volume, fuel flows from the tank directly into the float chamber. Filling with this liquid, the chamber goes down. When the fuel starts to move, it moves up. After passing through this chamber, the fuel ends up in the nozzle. From there it goes to the atomizer, which is located in the narrow passage of the diffuser. In the carburetor, air enters through the outer pipe. The required volume of fuel, passing through the intake manifold and throttle bodies, ends up in the engine.

When the carburetor on a Niva 2121 fails, craftsmen usually replace it with one of the options produced today.

Which carburetor for Lada Niva 4x4 should you install?

Experienced auto mechanics say that it is optimal to install one of two types of carburetors on the Niva: Ozone or Solex. In principle, these models are largely identical to each other, but there are certain differences. In particular, Solex does not need an economizer to function, and Ozone does not have a vacuum corrector.

These devices are important to a certain extent, and their absence may have some impact on the functioning of the machine. Thus, the vacuum corrector rotates the table located in the tumbler to change the ignition timing. And the economizer, in essence, is a mechanism for heat exchange that preheats the water supplied to the steam boiler.

Theoretically, you can choose any of these carburetors for the Lada Niva 4x4, but the vast majority of experts believe that Solex is less picky than Ozone. And this is influenced by the difference in the design of the devices themselves.

Which carburetor is better to install on a VAZ 21213 Niva with a 1700 engine

The best option for reducing fuel consumption on a Niva is to install a DAAZ 21083 carburetor. The “eight” carburetor has all the necessary characteristics that a 1.7 engine may require. If you are looking for an answer to the question of which carburetor to install on Niva 21213, then this is exactly what you need.

Carburetor DAAZ 21083

The only negative that may follow after such an installation is a decrease in throttle response of a carburetor engine due to a smaller throttle valve diameter of several mm. Also on carburetors 21083 the float has a small stroke. Installation can be done by yourself without outside help. Adjusting a new carb is also not difficult. The cost of this carburetor is not small - 6,290 rubles, but the quality of the parts and service life deserves respect.

When selecting carbs, there are several points to consider:

1. The DAAZ 21083 carburetor is not designed to fit the Niva manifold - it will have to be bored;
2. A new throttle control system is needed;
3. You will need a set of larger diameter fuel jets;

Troubleshooting - Solex carburetor 21073

The Solex carburetor 21073 was installed on the Niva 21213 for quite a long time, after which repairs and adjustments are quite common.

Therefore, the following malfunctions cannot be excluded:

• Higher fuel consumption;
• Poor starting qualities;
• Power reduction;
• Unstable engine operation at idle.

The main malfunctions during carburetor operation originate from low-quality fuel, which has foreign particles. They are the main reasons that clog the jets and channels, leading to malfunction of the device. The installed carburetor 21073 1107010 DAAZ on Niva has a device in which the jets are most susceptible to contamination. Therefore, diagnosis must begin with them.

Do-it-yourself VAZ 21213 carburetor repair video Telegraph

Download file - Do-it-yourself VAZ 21213 carburetor repair video

The manufacturer claims that Solex is correctly adjusted at the factory, but this statement is not always true. Problems with the engine power system unit arise not only due to its incorrect configuration, but also due to the negligence of the car owner himself. Ignoring recommendations on the frequency of replacing air and fuel filters leads to the fact that the most important mechanism in the engine power system refuses to work correctly. The goal to which all carburetor adjustment processes come down is to ensure stable operation of the power unit over the entire speed range. Adjusting the Solex carburetor comes down to part of the adjustment processes in the float chamber and adjusting the idle system. This is quite painstaking work that requires certain knowledge. The level should be within 25 mm in the chambers, but this may vary since the collector is not horizontal, so you should measure the value in the chambers and average it. If the level exceeds the norm, then use the float tongue to remove some of the gasoline and reassemble the mechanism in the reverse order. Then start the engine again and make observations. Gasoline should not leak from small diffusers, otherwise the appearance of fuel will indicate an overflow. There is no need to press the gas during the adjustment! You can adjust the Solex starting system both on an installed carburetor and on a dismantled one. In the first case, the adjustment comes down to determining the number of crankshaft revolutions, but with the carburetor removed, it is possible to adjust the starting system due to the gaps at the edge of the dampers. On the engine power system device removed from the vehicle, adjust the gap between the damper and the chamber wall - the gap should be 1.1 mm. Adjustment work is carried out using a wrench or screwdriver. More experienced and advanced car owners prefer to adjust the Solex by determining and setting the crankshaft speed. This method is faster, but also requires certain specific knowledge. This technique consists of the following:. Using a gas analyzer, you can also configure the starting system. The device measures the amount of carbon monoxide in gases. This procedure is necessary to ensure that the power unit operates stably and that the exhaust gases contain as few harmful substances as possible. In the garage, using your own efforts, all the work can be done using a tachometer. The motor is first brought to operating temperature, after which the adjustment itself is carried out directly. A similar procedure must be carried out several times until the engine begins to operate stably, and a minimum amount of vacuum in the tube is observed. Correct tuning of Solex will allow the car owner to enjoy high-quality, and most importantly, trouble-free engine operation. Experts recommend adjusting the idle speed twice a year. Thus, it is possible to achieve significant fuel savings and the emission of a minimum amount of harmful substances into the atmosphere, plus, a properly adjusted engine power system mechanism will significantly save personal funds on the services of service stations. Home Purchase and sale agreement Compulsory motor liability insurance calculator European protocol for road accidents Tips All articles. Repair Reviews Operation Tuning Buying and selling Legislation History Production Products. The long-awaited restyling of the Mazda CX Toyota Highlander of the year. Popular manufacturers of towbars in Russia. Laser headlights for cars. Step-by-step adjustment of the Solex carburetor on a VAZ Adjustment of the Solex carburetor comes down to part of the adjustment processes in the float chamber and setting the idle system. The recommended procedure for adjusting the valves of the 3rd generation VAZ Kia Sportage went on sale. Purchasing a used foreign-made car is associated with Copying content is prohibited without inserting an active hyperlink to the source.

V 80m s how many thousand revolutions is this

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Solex carburetor float chamber

The float mechanism is located in the top cover of the carburetor and serves to maintain the required level of fuel, which is supplied to the metering chamber.

He is:

• Small cavity;
• Ebonite float;
• Needle valve.

The calibration data for the Solex DAAZ 21073 carburetor provides for the following operating principle of the float chamber. When the fuel level decreases, the float lowers and with its lever opens the needle valve at the top of the cover. Through the resulting hole, gasoline enters the chamber and fills it, raising the float up. As soon as the float rises completely, the valve closes and the cycle repeats throughout engine operation.

Adjusting and adjusting the level of the float chamber affects the dynamic performance of the motor. If the level is insufficient, the power plant does not operate stably, and if it is too high, fuel consumption increases and the spark plugs fail.