2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:41
The Chevrolet Niva engine determines the high quality of the car. This model is one of the best-selling domestic cars in Russia. High cross-country ability and easy running make it possible to use the car both for overcoming off-road and for city driving. Since 2002, Niva-21213 has undergone several restylings, but the technical characteristics of the engine have not changed.
General information
The Niva engine is very similar to the previous VAZ-21214 engine. However, there are significant differences. "Chevrolet-Niva" is an all-wheel drive car, and all-wheel drive is always on. Therefore, the power must be appropriate. The engine is a four-stroke petrol engine. The body is made of aluminum, which is unusual for cars of this model.
Until 2005, most domestic cars had a cast-ironengine. Then they began to install aluminum heads. Cast iron has greater strength and less thermal expansion, but aluminum is much lighter and has higher fatigue resistance. A standard gasket was placed between the bottom and the head of the engine. The cylinders are arranged in one row.
Cylinder diameters have been retained from previous models, but the pistons themselves have received an improvement. Rings are installed on their upper part, which remove oil from the surface of the cylinders. The piston skirt has also been reinforced. Thus, the Niva engine has become more reliable. New methods for the production of main parts have reduced the weight of the motor, while not deteriorating its technical characteristics. The crankshaft connecting rods have become lighter, but the shaft itself has remained the same.
Fuel supply
Cylinder capacity - 1, 6. There is no carburetor. Instead, a modern direct fuel injection system was installed, that is, the mixture from the fuel system enters the mixer, and from there it is fed to the nozzles. They inject directly into the cylinder, which reduced fuel consumption and increased engine power. Such a system also gives the driver the ability to accelerate faster and overcome steep slopes.
The fuel filter is located under the bottom of the body. Electronic fuel management. The on-board computer regulates fuel injection. Sensors are located on the cylinders that control all engine cycles and the process of detonation of the combustible mixture. The nozzles are controlled by the generated electromagnetic field. In this way,the Niva engine increased its efficiency, but the parts became more expensive. For example, one nozzle can be purchased for forty dollars.
Chevy Niva engine: ignition
The ignition system has undergone the biggest changes compared to previous models. There is only one ignition coil, not four for each spark plug as many have assumed. Phase sensors are installed in the upper part of the cylinders. There are four leads from the coil to the candles, which is much more reliable than the module that was before. The engine starts with half a turn. A controller has been installed that, in the event of a malfunction in the cylinder, turns off the nozzle connected to it in order to avoid the destruction of the converter.
European standards
Chevrolet Niva's engine was made in cooperation with Western European specialists. Therefore, it fully complies with the high European environmental standards (Euro-3 and above).
The injection system is pairwise-parallel. Direct injection into the combustion chamber avoids the release of a combustible mixture into the atmosphere. The products of engine oil evaporation through the fuel filter enter the timing system and are sent to the cylinders.
Phased injection has been installed in accordance with Euro 3 standards. It provided the most accurate fuel supply for each cylinder. This affects not only the environmental friendliness of the car, but also its power and fuel consumption.
New technologies
The front axle gearbox is mounted on a subframe. This made it possible to movethe generator up, to the right side of the head - to the place where the distributor used to be. This arrangement made it possible to universalize the motor and facilitate its replacement. But the belts of this direction began to wear out quickly, so their condition should be checked regularly during technical inspection.
The cooling system has also changed. Radiator "Niva" is equipped with two fans. This airflow allows the engine to operate at full power in extreme heat and not overheat. To understand which engine is installed on the Niva-Chevrolet, it is enough to imagine the engine from the VAZ-21214 with an injection system and good airflow.
All controllers were developed by Bosch. They are very reliable, and the driver can follow the main work processes from the dashboard. The company also calibrated the engine in accordance with Euro-5 standards.
Niva-21213
"Chevrolet-Niva" immediately conquered the domestic market. This car has been bought more than others in the CIS countries for several years. The new design, developed by Italian craftsmen, made the car more attractive. But, as you know, our drivers first of all pay attention to more practical features.
The old Niva-21213 model is still popular in the post-Soviet space. The new "Chevy" was actually made on its basis. The engine of the Niva-21213 ensures its cross-country ability in almost any conditions.
The volume of the engine in the classic"Niva" - 1.6 l. Up to a hundred kilometers, the car accelerates in 17 seconds. The indicator is rather weak, but the main advantages of the car are unpretentious maintenance and the ability to drive off-road. The work of the cylinders is almost inaudible in the cabin. There are no various vibrations, which has always been a problem for VAZ cars.
Maintenance
The engine requires regular maintenance and diagnostics. However, driver reviews indicate the high reliability of all the main Niva systems. The main problem is the rapid wear of the belts. The developers claim that this shortcoming has been eliminated in the new Chevy.
All spare parts are available in domestic markets and are relatively cheap. The exception is the elements of the fuel system. Injectors and timing belts are Chevrolet's own development, so they can only be purchased at company stores. Fakes most often do not last long. In 21213, the ignition system is carbureted, and there are no nozzles there. However, there is another weak point - spark plug wires, which are often torn and frayed.
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