VAZ 2110 8 valve injector - description, characteristics

The VAZ 2110 (or Lada 110) is a four-door sedan with front-wheel drive and an original design. Serial production of the five-seater Lada 110 began in 1996 and continues to this day (the car is currently assembled under the Bogdan 2110 brand at the LuAZ plant in Ukraine). Since 1996, the production of several modifications of the VAZ 2110 has been launched, among which you can find models with both 8-valve and 16-valve engines (on later versions). Such technical characteristics of the VAZ 2110 as the type and displacement of the engine (four-cylinder petrol with a volume of up to 1596 cc), as well as the maximum speed of the Lada VAZ 2110 (170 km/h for an 8-valve engine and more than 180 km/h for a 16-valve engine) valve engine) make this front-wheel drive sedan ideal for use in urban environments to this day.

Among the distinctive features of the VAZ 2110, which is classified in the upper price segment of LADA cars, one can also note the presence of an immobilizer, a gasoline vapor recovery system and a special on-board control system (diagnostic unit). There was the possibility of installing electric windows (in fact, they were installed), as well as power steering.

Dimensions of VAZ 2110

Engine VAZ 2110

The VAZ 2110 8-valve injector
replaced the carburetor engine, which was originally installed on the first VAZ-2110. At the same time, an 8-valve injection engine with a displacement of 1.5 liters first appeared, but then the engine displacement was increased to 1.6 liters. An injector with 8 valves with a volume of 1.5 liters received the engine index VAZ-2111, a more powerful unit with a volume of 1.6 liters (8-liter) received the index VAZ-21114. Recently, modifications of the 21114 engine have been produced; they are installed on almost all today’s Lada models, albeit under a different index.


Today we will talk about the design of the 8-valve injector of the VAZ-2110 as well as the characteristics of this power unit. In our photo at the beginning of the article you can see how the injection engine of the “ten” looks under the hood of the car. So, how does the VAZ 2110 8-valve injector work? Firstly, the main difference between the carburetor version of the engine and the injector is the supply of fuel to the combustion chamber. If in a carburetor engine the combustible mixture is sucked into the cylinders under the influence of vacuum created by the pistons, then in an injection unit the fuel is injected under pressure. It is because of this that the entire design of the injector and carburetor “ten” fuel systems is different. It all starts in the gas tank, where an electric fuel pump is installed, whose task is to create the necessary pressure in the rail. From the ramp, fuel under pressure is injected into the combustion chamber through nozzles. The entire injection process is controlled electronically, which opens and closes (via a return spring) the injector solenoid valves, injecting fuel into the engine. But the electronics in the VAZ 2110 8-valve injector do not work on their own, but are guided by signals from pressure sensors in the fuel system, air sensors and throttle position. There is none of this in the carburetor “ten”. In this regard, let's talk about the pros and cons of the VAZ 2110 8-valve injector. On the positive side, it can be noted that the operation of the injector is more stable, the engine produces more power and torque, while fuel consumption is less than in the carburetor version. But if a carburetor VAZ 2110 can be repaired with almost bare hands, then the injection version requires diagnostic equipment, without which it can be extremely difficult to identify the problem. After all, if one of the sensors turns out to be faulty, then your injection engine may not start or work intermittently.

How does the fuel injection system work?

Now let's talk about how the fuel injection system works. So, from the very beginning:

  • You turn the ignition key, power is supplied to the electronic control unit, all sensors and actuators.
  • After the crankshaft begins to rotate, the VAZ-2107 generator (injector) starts working with the starter.
  • All sensors record changes in the parameters they measure.
  • The electronic control unit adjusts the quality of the mixture and regulates the ignition timing.
  • The mixture is fed under pressure into the combustion chambers through open nozzles, and the ignition process and working stroke begin.

That's all - the engine has started, all its components are working. When you press the accelerator pedal, you increase the amount of air, and therefore gasoline. The crankshaft speed will also increase.

Characteristics of the VAZ 2110 injector 8 valves with a working volume of 1.5 and 1.6 liters.

• Engine VAZ 2111 1.5 l. 8-valve injector ➤ Displacement – ​​1499 cm3 ➤ Number of cylinders – 4 ➤ Number of valves – 8 ➤ Cylinder diameter – 82 mm ➤ Piston stroke – 71 mm ➤ Power – 76 hp (56 kW) at 5600 rpm ➤ Torque - 115 Nm at 3800 rpm ➤ Compression ratio - 9.9 ➤ Power system - distributed injection ➤ Acceleration to 100 km/h - 14 seconds ➤ Maximum speed - 167 kilometers per hour ➤ Average fuel consumption – 7.2 liters • Engine VAZ 21114 1.6 l. 8-valve injector ➤ Displacement – ​​1596 cm3 ➤ Number of cylinders – 4 ➤ Number of valves – 8 ➤ Cylinder diameter – 82 mm ➤ Piston stroke – 75.6 mm ➤ Power – 81.6 hp (60 kW) at 5600 rpm ➤ Torque - 115 Nm at 3800 rpm ➤ Compression ratio - 9.6 ➤ Power system - distributed injection ➤ Acceleration to 100 km/h - 13.5 seconds ➤ Maximum speed - 170 kilometers per hour ➤ Average fuel consumption – 7.6 liters

Basic faults

The main malfunction characteristic of the VAZ 2110 is the appearance of the engine tripping effect. Malfunctions can occur for various reasons. Let's consider the factors that cause unstable engine operation, as well as methods of elimination. If the stove doesn't heat up, look here, and about replacing the valves here.

Poor quality fuel

The first thing you need to check is how high-quality the fuel was poured into the vehicle. If the gasoline was of poor quality, then most likely one of the elements of the fuel system was forgotten. So, the motorist will have to find out what the fuel supply scheme is and find parts that could have failed. So, the first element that comes under scrutiny is the spray nozzles. Malfunctions of the injectors can cause unstable operation of the engine, which will lead to tripping. A special stand is used to diagnose and clean the unit, but many motorists carry out the process themselves, using carburetor cleaning fluid. Also, unstable engine operation may be caused by clogged fuel filters. One is located under the rear right wheel, and the second is in the fuel pump. There is a filter mesh on the fuel pump intake that needs to be replaced. The process is quite complicated, since you have to remove the rear seats and remove the fuel supply element. But the fuel filter under the wheel can be changed quickly and without any problems.

Ignition system

Damage to spark plugs or high-voltage wires can also cause tripping. So, it is necessary to check all the elements using a tester, as well as visually inspect them. If there is damage, it is recommended to replace the entire set.

Sensors and ECU

Another major reason for engine tripping is the failure of one of the engine sensors, as well as a malfunction in the electronic control unit. To carry out diagnostics you need to connect to the “brains”. Next, based on the errors shown, find the faulty meter and replace it. If this does not help and the error in the ECU remains, then it is recommended to reset, and in some cases flash the control element.

Maintenance

Engine maintenance is carried out every 10-12 thousand kilometers.
The schematic map is available from official representatives of the manufacturer. But, as practice shows, it all comes down to changing the oil and oil filter. Many car enthusiasts ask the question - what is the best engine oil to pour into the VAZ 2110 8-valve power unit? The best option remains semi-synthetic motor oil of domestic or foreign production labeled 10W-30 or 10W-40.

Engine chip tuning circuit

Not many car enthusiasts can boast of a powerful 2110 engine. Thus, to improve the power characteristics of the engine, it is necessary to carry out chip tuning of the VAZ 2110. To do this, they usually turn to specialists, but more and more vehicle owners are doing the process themselves.


The chip tuning scheme is quite simple.
To perform the operation yourself, you will need an OBD II cable (USB-Auto), a laptop computer and software. It is worth remembering that there are three options for modifying the power unit: for power (but this will increase consumption), for reducing consumption (leading to a loss of power) and balanced (balance between the optimal indicators of consumption and power). Typically, chip tuning of a VAZ 2110 is done with the aim of reducing fuel consumption, therefore, if the owner of the car decides to do it himself, then it is necessary to select the appropriate software. But, it is recommended not to take risks and turn to professionals for help.

Modifications

The standard VAZ 2110 contains new developments and some features.
The first car was completely carburetor and 8 valve. This system had a volume of 1.5 liters and made it possible to develop about 70 horsepower.

This potential was enough to get real pleasure from movement. As for the maximum speed, it varies within 160 kilometers per hour.

After the carburetor engine, the designers decided to make an injector (already 16 valve). Essentially, these are the same 1.5 liters of volume, but with slightly increased engine power to 79 horsepower. This move made it possible to improve dynamism and increase maximum speed.

A small feature is that the system has a 16 valve VAZ engine. This is very unusual for cars of this class.

Until the 90s, the vehicle had a rather sparse interior and exterior. The designers made the car as a means of transportation, not a luxury. Only after the 90s were customers able to get a spacious trunk, comfortable seats, an adjustable steering wheel, air conditioning, and so on. Over the entire production period of the VAZ 2110, a huge number of modifications of its engine were developed: both an 8-valve carburetor and a 16-valve injector.

Timing device VAZ 2110 injector 8 valves

Many people are concerned about the question of whether the valves on the injection engine of the VAZ 2110 bend. No, they don’t
. The 8-valve injector does not suffer from this defect. But this does not mean that you should not monitor the timing belt. Because loosening and subsequent jumping of the belt by a certain number of teeth will lead to inevitable problems. It is worth paying special attention if engine oil gets on the belt; an oiled belt will not last long. Below is a detailed image of the timing diagram of the 8-valve injection engine “tens”. See the photo below.


When replacing the timing belt on a VAZ-2110, it is necessary to clearly align the marks on the camshaft and crankshaft pulleys; without this, the engine will not operate normally. Another important point is that when the tension roller moves to its original state, the marks shift as the belt tension changes. Therefore, carefully check whether the timing marks are clearly aligned before putting on the cover covering the timing belt.

Malfunctions

A major overhaul of a VAZ 2110 engine means restoring the engine and its components to factory standards. This operation is carried out when the motor has passed its service life and there is exhaustion in the main components.

Due to the fact that the engines have been in use for a long time, some engines are 10-15 years old, a major overhaul is inevitable. So, the combustion chambers have already worn out, and the pistons have burned out from service life and mileage. In addition, engine oil for the VAZ 2110 no longer helps to maintain performance to such an extent.

So, it is worth repairing the power unit at a car service center, especially with regard to the 16-valve engine. The VAZ 2110 8-valve engine is used by most motorists in garage conditions, since it has a simple design that is similar to the Classic and Samara power units.

Transmission and suspension VAZ 2110 8 valves injector

Lada 21102 has a built-in five-speed manual transmission (MT).
This box is used on all versions of the 2110 line. It has good noise insulation, the lever stroke is comfortable, and the smoothness of switching is much better than that of Zhiguli and Samara. The body (casing) of the box is made of aluminum alloy. Inside the casing there is a primary (drive) and secondary (driven) shaft. The shafts are combined with the differential and final drive. The five forward gears are equipped with synchronizers, which improve smooth shifting. Gear ratios: 1st gear - 3.636, 2nd - 1.95, 3rd - 1.357, 4th - 0.941, 5th - 0.784. For reverse gear - 3.5. The final drive ratio is 3.7. The operating instructions state that you need to change the transmission oil every 75 thousand km.


Mitigating the impact of the chassis on the body, as well as ensuring stability and smoothness, is carried out by the front and rear suspension of the Lada 2110. An independent design is used on the front axle.
Each wheel has an independent coil spring, inside of which a MacPherson strut is placed. Each strut has its own hydraulic shock absorber. The lower control arms are attached directly to the steering knuckles, and the anti-roll bar is attached to them. Levers help reduce wheel roll (rotate it around the longitudinal axis). When the car makes a turn, the wheel, which is turned “inside the body,” can move away from the axis of rotation. The stabilizer prevents this from happening by twisting. Thus, the front suspension of the Lada 2110 allows you to maintain the stability of the car when cornering. The rear suspension
is a rigid structure, the main element of which is the transverse beam. Since the rear wheels do not rotate, there is no need to provide maneuverability, but rear stability must be at a high level. Therefore, this design was used. The beam consists of trailing arms attached to each wheel and a connector that welds the arms together. The wheels on the rear axle are also equipped with hydraulic shock absorbers to soften impacts. The Lada 2110 is equipped with 175/70 radial tires. Ventilated disc brakes are used on the front wheels, and drum brakes on the rear wheels.

“Lux” and “Norma” configurations

The plant presented the car in two versions. Equipment:

  1. "Lux". Trip computer, alloy wheels, fog lights, headlight cleaning system.
  2. "Norm". Electric windows for all door windows, central locking, height-adjustable steering column, immobilizer, remote trunk release.

Neither trim included air conditioning, which is a significant drawback in terms of comfort by today's standards. It is because of this that many drivers preferred used foreign cars to VAZ.

Engine tuning VAZ 2110 8 valves injector

Increase the power of the VAZ 2110 engine
. Let's consider the potential of the 2111 8V engine without replacing the cylinder head with a 16 valve one. The 103 16V engine and its modifications are mentioned in a separate article.


The easiest way to improve something is to replace the camshaft with an OKB Dinamika 108 or Nuzhdin 10.93, install a split gear, and adjust the phases. The output will be around 85 hp. at a minimum cost and a slightly more active motor. Let’s let the engine breathe freely, install a receiver, a 54 mm throttle body and a 4-2-1 spider exhaust, and we get 90-95 hp and dynamics at the Priora level. To this we add modifications to the cylinder head and intake manifold, lightweight valves, milling of the cylinder head, and the power will jump to 100 hp or more. To further increase power, it is recommended to increase the engine capacity of the 2111 to 1.6 liters by increasing the stroke to 74.8 mm. When using valves of increased diameter, lightweight valve plates, and program settings, the car will show 110 or more hp, but in this configuration it is necessary to select evil shafts with a wide phase and large lift. We will get an excellent sports engine for the VAZ 2110 with a power of 120-130 hp. and more.

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