Which carburetor to install on Niva 2121: recommendations, video

What kind of carburetor is installed on the Niva initially?

The Niva car is equipped with carburetors from the classic “Ozone”, which is not the best two-chamber unit with an idle economizer.
The economizer is an autonomous system with a solenoid valve that automatically comes into operation when the ignition is turned on. When the speed increases above 1000, it is turned off, and the engine is maintained using an air damper.

The updated model received the French Solex design. The 1.7-liter engine required an increase in the amount of air-fuel mixture, and therefore Ozone was no longer used.

Technical characteristics of the injection version

In 2005, the Volzhsky Automobile Plant switched to injection engines. This change affected all VAZ models, including the Niva. So, the car began to be equipped with an engine with the index 21214. This is a gasoline unit with a volume of 1690 cubic centimeters. The engine power remained the same as the carburetor version - 83 horsepower. Acceleration hasn't changed either. But the car’s fuel consumption has decreased by one and a half liters.

Currently, Niva cars are produced with the 21214-28 engine. These are Euro 4 engines. The working volume of the internal combustion engine is 1774 cubic centimeters. Power is 92 horsepower, acceleration to hundreds takes 17 seconds, and consumption is no more than 10 liters.

Which Carburetor is Better to Put on Niva

Which carburetor is best to install on the field?

21213

More than fifty years later, the Russian auto industry continues to firmly hold its favorite position in the automotive market. The VAZ family has a very reasonable price and is quite standard in service.

There was great demand for the Russian VAZ-21213 jeep and its analogues. This type of VAZ car has achieved great success in world motorsport, setting unattainable records. Working with wag-com; battery management; decent taxi fleet; THE USSR; Photo; how to sheathe a roof profile; what tires to put on the field in winter; Daewoo Winstorm max. Chevrolet Front Hub. This car model is very intensively exported to European countries and beyond.

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

Many drivers do not know which model is better

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

Often the carburetors on different Niva models are very similar and located in the same way. They are located in the drive system and create the desired fuel mixture of fuel, combining fuel with air, and supply it to the engine. The carburetors ordered are also identical. Key elements include:

1. Float chamber (jet).
2. Diffuser.
3. throttle

Depending on the car model, the carburetor can have from 1 to 4 chambers; the flaps can be opened alternately or immediately; The movement of the flammable consistency can be horizontal, downward or upward.

Inexperienced motorists can use a carburetor diagram, which will list all the parts and describe their positions and functions. It will be much easier to find and change a specific part.

Niva 21213 replaced the previous VAZ-2121 and became more sophisticated and refined. The updated model has:

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

To always be confident in your car, you need to thoroughly know all its “inner money”, understand its features and understand its details. Later in this article we will look at the design of the Niva 21213 carburetor in order to have an idea of ​​this part and learn the intricacies of its operation.

53 No worse, maybe even better 73 per car 21 213 1.7 l

Carburetors on a world map near you! Purchase of nails.

Does he want something NIVA?! (About choosing a carburetor)

In this video, Nil Poroshin talks about which carburetor

NIVA
5 doors !

Carburetor in field 21213 what I put

Initially, when the VAZ 21213 was designed and manufactured by the manufacturer, it had a carburetor

Ozone brand.
In 1994, the manufacturer decided to update the Niva. In addition to the engine and other parts, it was replaced carburetor . Car owners still argue about which division is better Niva owners have varying opinions, and each type of carburetor does have many pros and cons. which model of the unit is better
.

The ozone has an old switch installed, but there is no vacuum masker. Solex does not have a microswitch on the economizer, which negatively affects the cleanliness of the exhaust and fuel consumption. Both types of carburetors have both pros and cons. But VAZ engineers preferred Solex as a more modern model. However, many car owners often complain about this type of carburetor due to its malfunction. Experts believe that this may be due to poor quality gasoline. Also sometimes the reason is the need to replace the fuel or air filter. In addition to the proper operation of the carburetor, it and its entire ventilation system must be regularly cleaned of oil contaminants. Some Niva drivers with Ozone installed are automatic Solex carburetors Most people agree that this has a positive effect on the performance of their vehicles.

regulation of VAZ-21213 carburetor

Sometimes adjustments can solve most problems and change the carburetor

no need. While driving, you may try to adjust the device while driving, feeling immersed, unsteady at idle. Knowing the fuel consumption for such tasks will be an additional advantage. Carburetor tuning work on a VAZ-21213 can be done independently without the help of a mechanic. This work will be no more difficult than tuning a VAZ-2121.

Car owners distinguish between two methods of regulation:

1. The carburetor
   must be removed .
2. This can be adjusted without removing parts.

Of course, the second method is better for car owners. It will take less time and hassle.

Remove the air filter first, but let the car run for a few minutes before doing so. You can then remove the fuel hose and remove the carburetor cap. Then use a caliper to measure the distance between the beginning of the float chamber body and the fuel level. Indications that correspond to the norm. 24-25 mm. If the data does not meet the standard, the float arm should be bent. Probably, such manipulations will need to be performed several times until you achieve the desired result. Every action is controlled by distance measurement. When the readings return to normal, the carburetor and turned around.

Next, adjust the engine to idle speed. For this you need a quality screw

Unscrew the mixture completely, then unscrew it 4 turns.
Start the engine, turn on the lights and cooler. The suction handle is completely recessed. The speed should be up to 800 per minute. Then raise it to the maximum and lower it again to 900. We do this while the motor is not running. At this point, the quality screw is turned 1 turn and with its help we reach the desired level. In summer it should be about 800-900, in winter. 900-1000 rpm.

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 repair for dips and jerks

Carburetor repair may be necessary if the engine idles unstable, and adjusting the quantity and quality screws does not always help. Often the reason lies in over-enrichment of the mixture, which may be a consequence of incorrect adjustment of the float system or malfunctions in the vacuum economizer system for power modes. In the latter case, a torn diaphragm may need to be replaced or the economizer valve through which fuel is leaking may need to be repaired.

Model 2121 may cause jerking, swaying or dips when moving. In this case, there may be several reasons for their occurrence, which may require carburetor repair to eliminate them. Dips that appear when the throttle valve is slowly opened are often associated with clogging of the idle jet. Here it is necessary to adjust the fuel level and check the level of clogging in the main fuel jets.

If the car gives a deep failure when trying to open the first or second throttle chambers, then in addition to clogged nozzles, the reason may be poor installation of small diffusers in the corresponding sockets.

When the Niva 21213 gives slight twitches at low and medium speeds and accelerates sluggishly, it may be due to poor fuel dosage on the shut-off valve side due to its wear. In this case, repairs are needed in terms of replacing the shut-off valve with a shut-off needle made of metal with a valve that has this needle made of a different material.

Cars of the 2121 series sometimes give failures when any sudden opening of the throttle valves, which then disappear within 5 seconds when the engine is running at the same pace. Often such problems are associated with a malfunction of the accelerator pump, which leads to a lack of or an incorrect drop in gasoline flows. A similar situation can result from a diaphragm rupture, a rubber O-ring on the sprayer holder being destroyed, or the lower part of the valve being destroyed.

pros

Which is better - Niva carburetor or injector? Among the advantages of the carburetor Niva, it should be noted:

• Simple design of the power system. In the event of a breakdown, you can fix the problem yourself.
• Cheap service.
• Unpretentiousness to fuel quality. Many Soviet Nivas can easily “digest” even 76-octane gasoline.
• Lack of many sensors.

Reviews about installing other carburetors on Niva 21213

Reviewed by: Ssan40

What has changed with the arrival of the fuel-injected Niva?

At the moment, all Nivas are produced exclusively with injection engines. VAZ engines immediately began to use distributed injection, where each cylinder had its own injector. All mechanical elements have been replaced with electronic ones. An electronic control unit also appeared in the car.

In order for the injection engine to operate stably, it required the presence of sensors for air control, throttle position, and detonation. In addition, the device now has a crankshaft position sensor.

At first glance, the system seems complicated. However, it is not. Mechanically, the engine has not become more complicated. Instead of a carburetor, injectors and a fuel rail appeared, and the throttle valve was moved separately. Only a few electronic sensors have been added, on the basis of which the electronic control unit determines the mixture and ignition timing.

Do-it-yourself VAZ 2121 carburetor repair

Repair of the carburetor unit on the Niva may be required in different cases. If a car enthusiast has practical skills in servicing his “four-wheeled friend,” then performing repair work independently will not be difficult for him. However, it should be noted that the design of carburetor mechanisms is highly complex, so high-quality work without preparation is unlikely.

Signs and causes of malfunctions of Ozone carburetors

External manifestations of the operation of the engine unit and the driver’s own sensations, as a rule, may indicate the occurrence of any malfunctions in the operation of the carburetor. The most common signs of malfunctions on Ozone are:

unstable operation of the power unit at idle;

the car loses its dynamics;

after reaching a speed of 90 km/h, engine productivity drops sharply;

difficulty starting;

increase in fuel consumption.

Thus, if Ozone shows one or more of these signs of malfunction, this means that repair work is necessary.

Video: carburetor starter repair

The engine receives too much gasoline - the carburetor is flooded / the needle is stuck

If a car owner notices that the carburetor is constantly being filled with excess gasoline, we can conclude that the needle valve is faulty. Over time, it can lose its throughput, which is why at first there are difficulties in starting the engine, fuel drips appear on the carburetor, and then it will be impossible to start the engine at all.

The way out of the situation is to replace the needle valve yourself. To do this you will need:

Remove the cap from the carburetor.

Align the float along its original axis.

Disconnect the needle valve.

Screw a new valve into the vacant space.

Screw the lid into place.

The car cannot maintain idle speed and immediately stalls

In this case, the economizer will need to be replaced. Most likely, the reason lies in this component, since it ensures the supply of fuel to the engine at idle. In rare cases, the idle speed control unit on Niva carburetors may fail.

To determine the cause of the malfunction, it is recommended to disassemble the carburetor and inspect the economizer and idle devices. Their condition will be visually noticeable (adhesion of a large amount of soot and dirt, deformation). If devices fail, the procedure for replacing them is as simple as possible: a new one is installed in place of the old component.

Minuses

It would seem that the answer has been found to the question of which is better - a Niva carburetor or an injector. However, a carburetor engine has more disadvantages. Among them:

• Low reliability. Every season you need to adjust the carburetor and carry out its maintenance.
• Dependence on air temperatures. In winter, the spark plugs could easily be overfilled, making starting impossible until the spark plugs were subsequently unscrewed and dried. Also, in winter, due to condensation, the float often “stuck”. And in the summer the fuel pump often got hot.
• Greater fuel consumption.
• Less productivity. To unlock the potential of the engine, it was necessary to spin it up to high speeds.

No matter how simple and maintainable this power system may be, it requires a lot of attention. Over the course of a year of operation, you will have to rebuild the carburetor several times. A modern car enthusiast is unlikely to be happy with this situation (especially adjusting the carburetor or drying spark plugs in 20-degree frost).

VESKO-TRANS.RU

AutoNews / Reviews / Tests

Which Carburetor to Put on a VAZ 2121

Which carburetor

better
put it on Levels 2121

Niva 2121 , or VAZ-2121 is considered a small-class SUV, which has a supporting body and permanent all-wheel drive. The first model of this car had an engine with the same markings. VAZ-2121. I entered his package and the Daaz 2107-20 or “seven by twenty” carburetor If this doesn't work, is it best to use a Niva 2121 carburetor from modern models?

Let's sum it up

So, which is better - a Niva carburetor or an injector? For off-road use and for the city, the second option is definitely better. An injector is a more reliable and practical system. There are far fewer problems and headaches with it, as evidenced by numerous reviews from owners. The engine starts easier and responds better to the gas pedal. In this case, the consumption is always less. If you don’t know which car to buy – a Niva with a carburetor or an injector, reviews advise considering the second option for purchase. In addition, these “Nivas” are more recent, and they will not require constant repairs and large investments.

Which carburetor is better to install on Niva 21213

The domestic auto industry, after more than fifty years, continues to firmly hold a leading position in the car markets.
The VAZ family has a very reasonable price and is quite easy to maintain. Huge demand has appeared for the Soviet SUV VAZ-21213, as well as its analogues. This type of VAZ car has achieved enormous success in world motorsport, setting unattainable records. This type of car is very actively exported to European countries and beyond.

Car owners 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 to choose, how they differ from each other and what to follow when choosing one or the other.

Often, carburetors on different Niva models are very similar and are designed in the same way. They are located in the engine system and make the necessary combustible mixture from the fuel, mixing fuel with air, and supplying it to the engine. Carburetors are also designed in the same way. The main elements include:

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

Technical characteristics of the carburetor version

To find out which Niva is better - carburetor or injection, first you need to consider the technical characteristics of both models. So, let's start in order. Initially, the engine for the Niva was taken from the classic Zhiguli. This is the same engine, but with an increased volume of the combustion chamber. The first for a Soviet SUV was the 2121 engine with a displacement of 1580 cubic centimeters. This engine developed a power of 80 horsepower. With it, the car accelerated to hundreds in 21 seconds. At the same time, according to the passport data, the consumption was 13.1 liters, but in reality it was even more.

A few years later, the car began to be equipped with a more modernized engine. The engine received the index 21213. This is a motor with a displacement of 1690 cubic centimeters. The power of the power unit is 83 horsepower. With this internal combustion engine, the car became more playful. Acceleration to hundreds decreased to 18 seconds. Consumption has also decreased. According to the passport data, the 1.6-liter Soviet Niva consumes 11.5 liters of gasoline. But still, the owners claim 13-liter consumption. And in winter, this figure will always be one and a half liters higher (this is mainly due to more frequent and longer engine warm-ups).