Engines VAZ 2106: design features, description, repair

For cars VAZ-2106 motors 100260 were installed. In addition to this car, they also fit all other classical models of the VAZ from 2103 to 2107. Let's consider what the VAZ-2106 engines are, how the engine is arranged, what problems it has with it, like its repair.

general description

These power units are designed for installation on passenger cars of small class. Production of engines at the Volzhsky Automobile Plant began in 1976. The same unit was installed on VAZ-21074, Niva-2121. The engine has a resource of 125,000 km, however, this is only the passport data. Practice shows that VAZ-2106 engines are able to pass from 200 thousand km and above. Naturally, this is subject to quality and timely service. The motor has a potential of 80 l / s without any resource losses.

Specifications

So, VAZ-2106-1000260 is a petrol power unit. The power supply system can be different. The old VAZ-2106 engines were carbureted, modern - injector. Its volume is 1568 cm3. According to the passport, the power is 77 l / s. The torque is 104 Nm at 3000 rpm.

Fuel consumption in the city is 10.3 per 100 km. On the road you can drive a little more economically. The consumption is 7.4 liters according to the passport. When operating a car in a mixed cycle, appetites amount to about 10 liters. Engines for efficient operation need not only fuel, but also engine oils - the unit consumes 0.7 liters of lubricating fluid for every 1000 km of run. Fill the unit with 3.5 liters of oil.

Distinctive features

The VAZ-2106 engines represent a fairly successful revision of the previous model. In the process of creating a power unit, engineers used the most modern technology at the time. The manufacturer set the task to improve the design and technical characteristics of the engine at any cost and in all available ways. Engine power VAZ-2106 was able to increase by increasing the total operating volume. Particular attention in the development and production of engineers paid to improve the quality of processing of combustion chambers. Due to improvements and upgrades, the cylinder block 10002011 was born. Besides the diameter, there are no other differences from the basic design in this block.

In the process of manufacturing processes, engineers and specialists give each cylinder a certain class. Now you can select five or more of these classes. They differ among themselves by 0.01 mm. These classes are assigned the symbols - A, B, C, D, E. To find out to which class a specific aggregate is included, it is enough to look under the engine. The letter is indicated at the bottom of the base. The head of the block with the index 21011-10005011-10 remained without any changes. To correct the overall size of the cylinders, developers and engineers had to apply new cylinder head gaskets. As for the pistons, the standard and worldwide accepted pistons have a lot of similar characteristics. In this engine parts of the piston system from the unit 21011 were used. The nominal diameter of this piston is 79 mm according to the passport data.

The new modification of the engine has special cylindrical holes. The volumes also increased. In the process of work in each region the piston warms more evenly and not immediately, but gradually. Thus, the developers managed to compensate for the thermal deformation. Also, engineers decided to place special thermoregulatory plates in the piston bosses. Since 1990, power units were completed with carburetors "OZONE" 2107-1107010-20, as well as a vacuum ignition distributor.

Features of operation

The engines for this model have certain characteristics that must be considered when using the car. Consider how to properly operate this engine. Also, we list typical faults.

Preheating

That the power unit could work long, it should be taken care of. So, any mechanism, before starting to work actively, should get warm. For normal warm-up of the engine, it is necessary to let it run for five minutes at speeds close to 2000 thousand. How to understand that you can start moving? The motor will be able to work stably at idle.

Camshaft

The operation of the VAZ-2106 engine has one more feature. In the process of exploitation there is an increased wear of the camshaft. The driver can recognize the wear of the part by a characteristic knock at idle. It will be heard even with the hood closed and in the car. In order to protect the camshaft from premature and intensive wear, it is necessary to regularly adjust the valves.

Change of oil

If you violate the manufacturer's regulations and do not change the engine oil in time, this will lead to the wear of the cylinders. Their diameter will increase by 0.15 mm. Do not fill in inexpensive and substandard oils. The level should not be below average. At car runs more than 60 thousand km. Cylinders with a lack of oil will fail.

If the unit consumes more oil than it should, this may indicate that the valves or rings have failed. In this case, the first thing to measure compression and then look for the cause of increased appetite.

Overheat

The problem of overheating is relevant for any motor. If the engine VAZ-2106 (carburetor) boils, but not heated in the normal mode, the owner should pay attention to the thermostat. It is changed to a better one. Also, the problem can be hidden in the clogged radiator. Additionally, the cooling system is checked. It can form an air cork.

Engine torits

The operation of the VAZ-2106 engine is not always smooth and stable. Sometimes instead of four cylinders there are only three. There are several reasons for this. So, most often all the fault is unconfigured valve clearances or burnout of the valve. Trochanter is also due to hot coolant. A popular reason is low-quality fuel in the tank, a malfunctioning carburetor, a malfunction of the ignition system.

Exhaust smoke from exhaust pipe

The smoking engine requires major repairs. The reason - irreversible violations in the work of oil seals or oil rings. The technical characteristics of the VAZ-2106 engine are changing for the worse.

Winter operation and engine start

In winter, the manufacturer recommends starting the engine manually using the start handle. It is also important to warm up the battery - this includes lights for a couple of seconds. To ensure that the engine is not deaf, the clutch is squeezed out before starting. The thing is that the gear oil in the gearbox is too thick and it takes time to become liquid again. Winter oils will not cause such problems. The starter motor is started only when the clutch is squeezed out. To the engine does not stall, pull the suction. Release it should be as slow as possible as the engine warms up and the engine speed of the VAZ-2106 drops to idle.

Periodically press and release the accelerator pedal, so that the lubricant is supplied to the components and mechanisms of the engine. The motor must operate at idle for at least five minutes.

Features of overhaul

Before the repair, the first thing is to dismantle. To overhaul this engine you will need special tools - locksmith and measuring. The assembly process is best entrusted to specialists, however many motorists collect these motors on their own. To dismantle the cylinder head shell and flywheel, you must have some experience or turn to the service station. Special skills require disassembly of fingers. Also, in order to perform a thorough overhaul, diagnostic skills are needed. Completes the repair work of installing the VAZ-2106 engine back into the car.

Conclusion

So, we found out what the power unit of the VAZ-2106 is. The motor is rather weak, so at the moment, many car owners are engaged in tuning and refinement of this engine. A frequent view of tuning is the installation of a 16-valve block head. This allows you to increase power by 20 percent. 20 тысяч рублей. The budget for tuning does not exceed 20 thousand rubles. Some install a turbocharger, but this is very expensive.