How to adjust the carburetor on Niva 2121
Operation and maintenance of the fuel injection, ignition, exhaust system Niva 2121. Injection engine, carburetor engine. Design of the carburetor and injection power system of Niva 2131.
disassembling and assembling the engine with your own hands
carburetor, adjustment and check
injector, troubleshooting and inspection
cooling system, design and maintenance
carburetor power system, device
injection power system, repair, photo
carburetor, inspection and testing
ignition system, device and repair
engine injection system
exhaust system, maintenance
Main advantages of the injector Depending on the engine type
| Gasoline consumption on a carburetor field 2131 is 1.7 liters. — Lada 4×4 5D, 1. 7 liter, 1996 year on DRIVE2 With the engine running, you will need to fully open the air damper of the carburetor mechanism and fully press the damper drive handle, that is, the choke. The injector is considered a good fuel injection system, but it is expensive, difficult to repair, requires high-quality gasoline, special diagnostic equipment and expensive repair maintenance. |
| How to reduce fuel consumption on a Solex carburetor (we save gasoline) Niva 21213 can be adjusted by the starting system by the gap at the edges of the flaps, if the carburetor is removed, or by crankshaft rotation speed directly on the car. On turns, steep climbs and maximum accelerations, previous models could not provide an engine located perpendicular to the direction of travel with a fuel-air mixture. |
- 1.7 l, 80 l. With. (AI-92) – 10.2 l/100 km;
- 1.7 l, 80 l. With. (Regular gasoline: AI-92, AI-95) - 10.8 l/100 km.
Injection power system, repair, photo • Both carburetors have both their advantages and disadvantages.
Reasons for increased consumption. Carburetor malfunction
| How to reduce the fuel consumption of a carburetor engine I had to invest in repairs, bring some things to mind, but now the car is just fire, consumption on average is 10 liters per 100 km, but I can transport whatever I want. Cleaning the injectors can be done independently by purchasing additional materials worth about 500 rubles, including an 8 diamond key, carburetor cleaner, vacuum hose for the distributor, a syringe with an outlet diameter of 1 cm, an electrical cable with a toggle switch and a light bulb, rubber injector rings, 8 pieces , sealing rings for fuel pipes 4 pieces. |
| Disassembly and repair of carburetor Niva VAZ 21213, 21214, 2131 lada 4×4 Insert a thin slotted screwdriver into the slot, unscrew to increase the gap or tighten the screw to reduce the gap, and then tighten the locknut. 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. |
- the vacuum corrector is designed to rotate a table located inside the toggle switch, as a result of which the ignition timing changes;
- The economizer is a heat exchanger that must preheat the water that is supplied to the steam boiler.
The screw for the “amount” of the fuel mixture • the vacuum corrector is designed to rotate the table located inside the toggle switch, as a result of which the ignition timing angle changes;
Setting the ignition timing
When the ignition timing is correctly set, all indicators of engine performance (reactivity, power, idling, energy consumption) are within normal limits. To carry out the work, you must have a strobe and a tachometer, an open-end or socket wrench of 10. In general terms, the setup is done as follows:
- The engine warms up to operating temperature. Low idle speeds are set by ear or on the tachometer (less than 800 rpm), after which the engine is turned off.
- On the gearbox housing, look for a hatch with a visible part of the flywheel and a scale. Most often it is closed with a rubber stopper that needs to be removed.
- By turning the flywheel with a screwdriver, the long alignment mark is located. The lead angle is 0 degrees if the mark is opposite the triangular notch on the scale. In this case, the pistons of cylinders 1 and 4 are at top dead center.
- The strobe light is connected and the engine is turned on to idle. A flashing strobe beam is directed into a hatch with a scale. In the beam, the highlighted mark should be opposite the desired scale division, where each division corresponds to one degree of ignition timing.
The advance angle is adjusted by rotating the distributor (ignition distributor housing). Clockwise - the advance angle increases (early ignition), counterclockwise - decreases (late ignition). When the desired angle is set, the engine is turned off, the strobe light is turned off, and the distributor is secured.
WHERE DOES THE THEORY WORK?
Here is a classic example of the complete coincidence of theory and practice. Until 1965, the three-axle Ural-375 had an asymmetrical lockable center differential with the ability to connect the front axle. Then the design was simplified by using permanent all-wheel drive. The car immediately became more economical. This was already noticeable on asphalt, and when driving on the ground, the difference in consumption increased even more. Yes, with a decrease in the number of drive axles, losses in the transmission are reduced, but at the same time losses in the wheels increase and traction capacity decreases.
How to save on gasoline and stop overpaying: Engine malfunctions
| The reason for the increase in fuel consumption on the Chevrolet Niva is. When leaving the car in the parking lot, turn off all unnecessary devices, because battery consumption increases the generator speed and consumes additional fuel, and increases fuel consumption on the Chevrolet Niva by 100 km. EPHH is designed to cut off the fuel supply while the car is moving with the gas pedal released and the gear engaged; it is also called engine braking mode or forced idle. |
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Features of gas consumption when driving
The plant has not officially installed gas equipment on Niva cars; modifications are carried out by the owners. It should be taken into account that the installation of a propane-butane mixture supply system requires making marks in the documents.
If the driver does not have permission, a fine is imposed or a ban on further operation of the car is issued. The fuel cylinder is installed in the luggage compartment, reducing its already small volume. Owners are forced to carry cargo on the external trunk, which leads to increased fuel consumption due to increasing resistance.
Gas consumption depends on the operating mode and modifications made to the vehicle design. According to drivers, the consumption of liquefied gas during highway driving is 12-13 liters per 100 km, and in the city the parameter reaches 15-16 liters.
Some owners install equipment for supplying compressed methane (gas reserve in 2 cylinders is 16 m³). The car can travel on the highway up to 200 km, in the city the gas runs out after 160-170 km (consumption in mixed mode is about 9 m³).
Niva with HBO.
Features of an injection car
The Volzhsky plant completely switched to injection engines in 2005. These changes affected not only the Niva-2121 SUV, but also many other cars. The new engine received a new number - 21214. The volume of the new gasoline unit began to be 1690 cm3. As for its power, it remained the same, the same as the carburetor - 83 horsepower. The acceleration remained the same, nothing has changed.
The fuel consumption of the Niva-2121 with an injector decreased, in contrast to the carburetor engine, by about 1.5 liters. This is already a big advantage compared to previous Niva models.
Is there an alternative?
To save fuel, some suggest converting to gas. There is a lot of debate on this issue, however, if you agree to such a rework, you should take into account the opinions of critics:
- It is not possible to repair the engine at every service center - for service you will have to visit a specialized workshop;
- gas consumption is higher - compared to gasoline, 1.5 times more fuel is required;
- burnout of the cylinder head gasket - the standard resource of 150 thousand km can be safely divided in half;
- gas takes away power - and Niva already doesn’t have enough of it;
- cross-country ability is reduced - if a gas cylinder is installed behind the rear gearbox, it noticeably reduces ground clearance.
Practice shows that HBO is not the best option for Niva. To increase cross-country ability, some try to place the cylinder in the trunk, but the container will take up its entire volume.
Adding to the complexity is increased engine wear and reduced vehicle performance.
Still, the best option for a Chevrolet Niva is high-quality gasoline and proper care.
Solex carburetor. How to reduce consumption by selecting jets
But ways to optimize them require a very high level of technology, which is beyond the capabilities of even leading automobile companies, not to mention the domestic auto industry with its favorite phrase A, and so it will do. Using a screwdriver, start adjusting the air-fuel mixture supply screw and turn the screw until the power unit begins to idle smoothly.
Main dosing systems
The fuel nozzle is one of the smallest elements that must be very carefully cleaned of carbon deposits. The float tank must be thoroughly washed with special means. The throttle valve is a small element that requires washing and purging. But within the family, various modifications are very similar to each other, differing slightly in the size of the metering elements and the shape of the control levers.
Dynamic characteristics... How to reduce consumption
| How to reduce the fuel consumption of a carburetor engine The new Chevrolet Niva's fuel consumption in the city, without the air conditioner on, is about 8.6 liters per 100 km, while the old one, also with a 1.7 liter engine, was about 12. It’s one thing when you are calmly driving a car and quite another when you are trying to squeeze out of the engine everything that it is capable of using the gas pedal. |
| What is the fuel consumption? Niva-2121; with carburetor and injector? If the problem is overheating, drain the old antifreeze, flush the system, replace the coolant temperature and radiator fan sensors, and fill in with new antifreeze. Lengthening the base made it possible to create a more comfortable interior and increase the fuel tank, since the weight of the car increased, gasoline consumption on the VAZ Niva also became higher, and the dynamic performance turned out to be similar to the VAZ 2121 model. |
- High with an injection engine is much faster compared to previous models.
- The operation of the internal combustion engine is stable. That is, due to the fact that the engine has IAC, many car owners have forgotten what floating speed is. Models with a carburetor engine always have real problems with this.
- Low fuel consumption of the Niva VAZ-2121. With the advent of the injection engine, the car began to consume about 20% less fuel.
- This engine is the most reliable. That is, such a motor does not need regular tuning, cleaning, or replacing jets. The only thing that the owner of a Niva-2121 car may need to do is clean the throttle valve. But this procedure is not mandatory. Experts recommend doing this in situations where the car picks up high speed at idle.
Option 1 of 4: Technical condition of the car and its impact on Niva consumption
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. Before installing a new carburetor, you need to perform several steps:
- Remove the old device;
- Install DAAZ 21083;
- Adjust the new carburetor.
To do this, open the hood of the car and take out the spare tire so that it does not interfere. Then, unscrew the fastenings of the air filter cover by hand and remove the filter element. Next, unscrew the nuts securing the housing and dismantle it.
We disconnect all the rods and hoses from the old device, unscrew the four nuts to 13 and remove the “Ozone”. Thoroughly clean the installation site of the new device and install a new gasket. The repair kit must be provided with such a gasket. If there are nicks on the collector, then it needs to be repaired.
Ream the mounting eyes of the new carburetor so that they coincide with the standard studs. Install it and tighten it crosswise. Assemble the parts of all the rods and reinstall the hoses. If you wish, you can install a system for pumping excess fuel back into the tank, or you can install a plug. The last option will be the most optimal, since there will definitely be no excess fuel. This happens because the float mechanism will work faster due to the small chamber, and its positions will change frequently. There is no need to monitor its level.
VAZ-2131 Niva
Reasons for increased fuel consumption. why fuel consumption is increased Initially, the VAZ-2131 was equipped with a VAZ-21213 carburetor engine with a volume of 1.7 liters and a power of 82 hp. There was also a version with a VAZ-2130 engine with a volume of 1790 cm3. Its power was also 82 hp, but the torque was higher - 135 Nm versus 125 Nm.
Since 2001, instead of carburetor engines, a more modern VA-21214 injection engine of the same volume, but increased to 83 hp, has been installed. power and torque of 129 Nm. A 5-speed manual transmission was installed for all engines.
When does a carburetor need repair?
This moment cannot be missed in principle. If the carburetor on a Niva does not work correctly, then even at idle the engine will not be able to operate correctly.
However, using quantity and quality screws is unlikely to get rid of the problem. In most cases it lies much deeper. It is very likely that the float systems have stopped working properly.
Also, the reason may be in the vacuum economizer for engine power modes.
If you try to drive off with the above-mentioned problems in the carburetor, the car will begin to twitch and sway. It is not surprising, because the fuel mixture that enters directly into the combustion chamber is prepared incorrectly.
In most cases it is over-enriched. During diagnostics, it is imperative to assess the level of nozzle clogging.
Nail Poroshin will tell you which carburetor is best suited for the Niva:
Replacing the standard Solex carburetor on Niva 21213
In this case, problems may arise with the lambda probe, mass air flow sensor, throttle position sensors, and temperature sensors. EPHH is designed to cut off the fuel supply while the car is moving with the gas pedal released and the gear engaged; it is also called engine braking mode or forced idle.
Do-it-yourself VAZ 2121 carburetor repair
Niva 21213 can be subject to adjustment of the starting system by the gap at the edges of the valves, if the carburetor is removed, or by the crankshaft speed directly on the car. In the first case, the gap at the location of the lower edge (in the direction of air movement) from the throttle valve is set to a width of 1.1 mm. It is adjusted with a screw that has a 0.7 cm hexagon on the head and a slot from the shank. This operation is carried out with the cam lever turned counterclockwise from the starting system control (all the way). In the same position, the gap at the lower edge of the air damper is set to 3 mm using a screw in the cover from the diaphragm mechanism in the starting system (you need to loosen the lock nut). At the same time, the rod from the diaphragm must be forcibly recessed completely into the adjusting screw. After adjustment, the screw is fixed with a locknut.
Driving style: Carburetor malfunction
The debris in this element will produce an increasingly richer mixture, which will result in more heating and, as a result, a decrease in engine power and higher fuel consumption. Empty the trunk; it should contain a spare tire, tools, a tow rope, a warning triangle, a fire extinguisher and no more than 5 liters of technical fluids.
| Engine | Consumption (highway) | Consumption (city) | Consumption (mixed cycle) |
| 1.7 | 10.1 l/100 km | 12 l/100 km | 9.5 l/100 km |
What to pay special attention to
Experienced drivers know that it is better to use an economical driving style, without sudden acceleration and braking. It is better to move smoothly with a gradual increase in speed and stop. Body aerodynamics should be minimal. To reduce fuel consumption, it is better to remove all unnecessary elements.
Guys, I need help. Niva 21214 injector 2006. I bought it in a complete state with a dead engine. I made a full capital investment and invested 35t in the engine. In general, the first trip and crazy expense. 50l per 100 km in a mixed driving cycle. I started looking, the fuel pressure was pumping 3.7, but something alerted me and I decided to check the fuel pressure regulator in the rail (return valve). And it turned out that the pump was dead, and the former owner turned off the valve, when he replaced the valve, it turned out that the pump somehow pumps 1.7- 1.8 I replaced the pump, the consumption dropped slightly, 30 per 100 km. I decided to dig further, 2 injectors were filled, and 2 were clogged and worked intermittently. Replaced all injectors. At the moment the consumption is 20-22l per 100km. But the main problem is that it drives poorly, the maximum speed is 90 km, and that’s bl. practically new engine. And the acceleration is also slow, as if I’m dragging the car behind me in tow. Please advise what to do. DIAGNOSTICS DOESN'T HELP, THE SCANNER DOES NOT CONNECT TO THE BRAIN, THREE DIAGNOSTICS HAVE ALREADY TRIED. The obd-II connector and the wires going from it to the brain are intact, everything rang normally, there is no break.
Comments 54
I won’t say anything about the sensors... Although you can try to transfer your brains to ones that are known to work. - What GPs are worth? If 4.1 and higher, then +20% to consumption and a decrease in maximum speed. Does it feel like it's towing a trailer? This happened to me when the clutch died...
The marks are in place, the clutch is definitely not slipping. Since I had already traveled a thousand kilometers, it would have ended long ago. As for the main couple, to be honest, I don’t remember anymore.
Why does the VAZ 2106 increase gasoline consumption? How to reduce consumption
| How to reduce fuel consumption in the field 21213 | Tricks of Life When comparing the results, it will become clear to you whether the Niva’s consumption is decreasing or increasing, whether your car is in good condition and whether there is enough water in your tank. Secondary factors do not manifest themselves so clearly; the simultaneous impact of several small problems is necessary for the car enthusiast to pay attention to the increased consumption. |
| Fuel consumption of Niva 2121: standards recommended by the manufacturer for the carburetor and injector Even such seemingly familiar body kit elements as a fly swatter, as well as overhead arches, can affect the deterioration of the aerodynamics of the car and lead to subsequent cost overruns. Drivers, dissatisfied with the fact that the fuel consumption of the VAZ 2121 per 100 km is too high, have created a selection of tips on how to reduce gasoline consumption by one hundred kilometers. |
- city traffic - 14.1 l;
- on the highway - 8.8 liters.
Niva - reducing fuel consumption
The Niva is a unique car that requires a special approach. The main problem of owners of Russian SUVs is high gas consumption, which leads to constant questions and guesses. The need for fuel is especially felt in the winter, when it takes 15-20 minutes to warm up, and driving in lower gears requires even more consumption.
If you turn to the manual, then under ideal road conditions, a carburetor Niva should consume about 11 liters per hundred kilometers in urban road conditions.
It often happens that our cars are far from this figure and consume from 15 to 20 liters with the same parameters. Naturally, with today's rise in gasoline prices, this can hit the car owner's pocket hard. Thus, in order to reduce fuel consumption as much as possible to the levels of manula, the following rules must be observed:
And finally, I would like to say that the Niva is a Russian car that can bring its owner many inexplicable surprises. Therefore, you should take care of your cars, and they will repay you with their reliability when traveling for fishing, hunting and on business.
And in the online store “Towbar Factory” you can choose a towbar for any car. Starting from Niva and ending with a6 allroad towbars for all-wheel drive foreign cars.LADATUNING.NET
