Engine for VAZ 2106, technical specifications and repairs

The VAZ 2106 engine is used in small class passenger cars.
It has been produced by the Volzhsky Automobile Plant since 1976. The VAZ 2106 engine cools the system in a closed container using a specially designed liquid. It is located at the very top of the camshaft.

This engine is considered a four-stroke, has a carburetor system and an in-line engine. The liquid inside the motor has forced circulation to quickly cool the container.

The engine has a combined lubrication system. That is, this process occurs under a certain pressure and in the form of splashing. These engines are subject to major overhaul and additional tuning. When the design completely fails, you need to ask how much a new engine for a VAZ 2106 costs and replace it.

Specifications

The following main characteristics of VAZ 2106 engines can be distinguished:

Download .xls file

xls

Download picture

Send by email

mail

The motor is installed on cars: VAZ 2106, 2103, 2121, 21053, 2107 and 21074.

From the technical characteristics it is clear that the presented motor design has been significantly improved and finalized by engineers.

Injection modification

The first in the line of internal combustion engines of the AvtoVAZ manufacturer, the 2106 engine received tuning in the form of distributed injection. At the same time, the owners received a headache:

• intense heating, since the mixture is lean, the manufacturer’s cooling system cannot cope with temperature loads;
• increased fuel consumption up to 13 l/100 km in winter.

Injection 2106

A positive feature is the low budget for major repairs within 10,000 rubles.

Distinctive features of the VAZ 2106 engine

The VAZ 2106 engine is a fairly successful modification of the previous version of the VAZ-2103 engine, during the creation of which modern technologies were used.

Manufacturers have set themselves the task of improving the finished part by any means:

1. The power was increased using the total effective volume of the engine. Particular attention was paid to improving the cylinder.
2. Such modifications influenced the appearance of the cylinder block 2106-1002011. Apart from the diameter, the presented motor design no longer has any distinctive features.
3. During the manufacturing process, specialists give an individual cylinder its own class. Today there are about five names that differ by one millimeter. They are assigned the following symbols - A, B, C, D and E. You can see the conditional class of the motor at the bottom of the base.
4. The main head of the motor block with the designation 21011-1005011-10 was left unchanged. To change the overall diameter of the cylinder, manufacturers had to use new gaskets.
5. Absolutely all standard and generally accepted pistons have many similar characteristics to each other. The presented engine is equipped with pistons from the 21011 engine, where the nominal diameter is 79 millimeters.
6. The new motor model has cylindrical holes, and the volumes have been improved several times. During operation in each individual area, absolutely all pistons will heat up gradually and evenly. This is how it was possible to compensate for possible thermal deformations. Manufacturers also placed temperature-control plates made of high-quality steel in the piston bosses.

How to increase the power of a VAZ 2106 engine and minimize all kinds of dynamic loads on the piston part of the engine? You need to pay attention to the presence of a hole that is intended only for the piston pins.

Cylinder block

The 2112 cylinder block is made of high-strength cast iron, and at first glance, is similar to the 21083 block. The main differences are the diameter of the head mounting bolts and holes for them in the block reduced to 10 mm, lugs for the fuel injection system sensors and a completely different technology for honing the cylinders during production .

For the VAZ 2112 block, five size groups are defined. Size classes are designated by letters: A, B, C, D, E.

VAZ 2106 engine maintenance

To identify all possible problems in the car, it is necessary to perform a thorough diagnosis of the entire structure. The master and specialist will be able to set operating parameters in each individual mechanism of the entire system.

The complexity of repair work is determined based on the general condition of the engine and existing defects. Detailed force load studies must be performed to make accurate estimates. Also, special attention is paid to all system components.

Disassembling a VAZ 2106 engine requires an exclusively professional approach. More experienced drivers will be able to buy a special book in the form of a manual, which is sold at any car store.

To disassemble and reassemble a VAZ 2016 engine, you need to have knowledge and experience, as well as a full set of tools.

Popular engine breakdowns

1. Failure to change oil in a timely manner or use of a lower quality can lead to the fact that after a run of 6 thousand km, the cylinder diameters may increase by approximately 0.15 mm.
2. Increased camshaft wear
3. Knocking in the VAZ 2106 engine. The most popular solution to the problem is adjusting the valves. Another reason may be detonation; this occurs due to low-octane fuel, carbon deposits in the combustion chamber and incorrect ignition setting. The problem can be solved by appropriately eliminating these defects. If the situation does not improve, then the knocking noise may also be due to improper operation of the piston pins or connecting rod bearings; in this case, it is recommended to contact a service station.
4. If the knocking noise comes from the bottom of the engine and there is a drop in oil pressure, this means the main bearings are damaged. In this case, you need to turn off the engine and use a tug to send the car to the service station.
5. If the knocking sounds like a squeak, you need to check the damper and timing chain tensioner; if there is a grinding noise, check the pump bearing.
6. If your engine suddenly stalls while driving, first check the power or ignition system.
7. If it stalls at idle and the idle speed is adjusted normally, try adjusting the air damper.
8. Why is the engine shaking? Some of the reasons: incorrectly adjusted valves, or they simply burned out, the cylinder head gasket has failed (additionally, this will be indicated by jumps in coolant temperature and smoke from the exhaust system). Other reasons include low-octane gasoline and an incorrectly adjusted carburetor.
9. Motor vibration. The first reason is wear of the pillows. Others are imbalance of the crankshaft and driveshaft, different pistons. We carry out diagnostics at a service station and fix the problem there.

Features of overhaul of the VAZ 2106 car engine

Before carrying out major repairs, it is necessary to carry out dismantling work. To perform this stage of the overhaul, special plumbing and measuring tools are used.

The assembly of the VAZ 2106 engine must be carried out by qualified specialists. The procedure for performing preliminary work:

1. Unscrewing the fasteners that are located on the frame.
2. Loosening the gas pump hose clamp, as well as dismantling the product.
3. Pulling out the gasket plates near the gasoline pump.
4. Disconnecting the wires from each spark plug.
5. Take out the pressure plate.
6. Dismantling work in the distributor.
7. Unscrewing fasteners on the generator.

To dismantle the cylinder head casing and flywheel, you must have experience in repair work or seek qualified assistance from a specialist at a service station.

Assembling a VAZ 2106 engine requires certain skills and a little work experience. Sometimes it is almost impossible to independently determine in which part of the engine there is a knock in the VAZ 2106 engine. Disassembling the pins requires a special approach and careful diagnosis.

Constructive decisions

• major repairs were required more often due to burnout of valves;
• Unstable operating modes on low-quality domestic fuel.

Valves burnout

The engine was equipped with pistons from a VAZ 21011, there was no need to reconfigure the equipment, and the cost price was not affected.

Tuning

It is possible to tune the 2106 engine because it is a classic engine.

Thanks to this opportunity, you can grind channels, polish intake manifolds, select a carburetor, camshaft, split gears, modify the intake, bore cylinder blocks, select the best options for the piston system, crankshaft, and connecting rod.

It is best to entrust such work as tuning the VAZ 2106 engine to qualified specialists, because this is a serious modification of the engine.

Many motorists want to make their own car more powerful, so they resort to this procedure. To perform tuning of the VAZ 2106 engine, it is necessary to replace specific factory-produced parts with more improved ones. This may include a valve, connecting rod or pistons.

In the process of modifying the car, you can increase the volume in the VAZ 2106 engine. During boosting, it is necessary to take into account the compression and compression ratio of the engine.

Specialists must necessarily assess the current condition of the engine and measure compression. Only after a positive verdict can the volume in VAZ 2106 engines be increased.

DIY tuning in the garage

When a person decides to do tuning with his own hands, he needs:

1. Be sure to first check the wiring, which is made of silicone. In almost all cases, it requires urgent replacement. Experts recommend never skimping on wiring and using only high-quality shielded wires.
2. Before installation, you need to make sure that the battery and generator have sufficient energy and power.
3. To increase engine power, you need to replace the factory generator and rebuild the ignition system.
4. You can tune the VAZ 2106 engine at home, but before that you need to watch the lessons and read the relevant manuals. Not every person will be able to assemble the engine correctly and take into account all the details.

Design

I would like to note that this power unit was installed on many cars. It does not require much attention during maintenance and costs during repairs.

• It is based on a simple four-cylinder 2110 engine equipped with a direct injection system. The latter allows fuel to be injected into each cylinder of the engine to produce maximum power. The material is quite simple, high-strength cast iron with the addition of some elements. This combination allows for a very durable structure that can withstand shock and temperature changes.
• Cooling is carried out throughout the unit, evenly. This move completely eliminates overheating of the power unit and its failure.
• As for the cooling jacket, it is slightly open towards the cylinder head and cylinders. The lower part of the block is equipped with crankshaft bearing supports, which have special fastenings.
• The crankshaft itself is made of high quality cast iron. This was not done by chance, because only cast iron is able to withstand colossal temperatures and loads. No other material can produce such results. All connecting rod bearings are lubricated through oil valves that are drilled along the entire length of the crankshaft. This is very convenient and practical, especially in the summer.
• The power unit also has a vibration reduction system. It consists of several dozen counterweights located on the crankshaft. Due to this, the 2110 motor will not vibrate while moving.
• In front of the crankshaft you can see the oil pump with a timing belt pulley. At the rear there is a flywheel made of high-quality cast iron.
• All connecting rods are made of high-quality steel using forging. A small feature is the caps on the heads. There is a liner in the lower part, and a pressed-in bushing in the upper part.
• All pistons are equipped with three rings: two for compression, one for oil control. As for the material of the pistons, it is simple aluminum.
• On the bottom, the designers made special recesses for the combustion chamber. On top of all this is installed a cylinder head made of an alloy of steel and aluminum. Due to this, the 2110 motor is very durable and practical.
• At the bottom of the cylinder block you can find special channels designed for coolant circulation.
• A small feature of the VAZ 2110 engine is that the camshaft is located in the upper part of the power unit on supports. To reduce wear of parts, they are subjected to heat treatment. Thanks to this, the parts will not lose their properties during long-term operation.
• I would also like to note that the 8-valve engine has two valves per cylinder: intake and exhaust. They allow the fuel mixture to enter and exit the cylinder, thereby completing operating cycles. In addition, they are equipped with special springs. It is very convenient and practical. In addition, the engine from the VAZ 2110 receives good power and torque.
• The guide bushings and all valves are completely pressed into the cylinder head.
• The camshaft is driven by a simple timing belt from the crankshaft.
• I would also like to say something about the VAZ 2110 engine cooling system. The fact is that there is a fairly powerful electric fan installed here that turns on at a temperature of 115 degrees. It turns off when the power unit cools to 95 degrees.
• The power supply system is equipped with the following components:

• Fuel tank;
• Fuel lift pump;
• Air filter;
• Fuel lines;
• The carburetor itself.

It is worth noting that the fuel pump is located on the cylinder head itself and is driven by a pusher from the eccentric to the camshaft. All electronics of this type of car are focused on a simple controller. In simple words, an electronic control unit.

From the technical data sheet it is clear that the lubrication system has a combined system:

• By spraying;
• Under high pressure.

This system helps protect the power unit and mechanisms from damage and poor lubrication. All mechanisms will receive a sufficient amount of oil, which is very good. You don't have to worry about this. The VAZ 2110 engine with 16 valves is characterized by good durability and ease of maintenance.

Which oil to choose and how to replace it correctly

Among the large and varied selection you can find synthetic and mineral oil. They differ from each other in that the latter is capable of flushing out all unnecessary and excess deposits from the engine.

But in cars of this brand, spare parts are made of nitrile rubber, which can dissolve in high-quality synthetic oil. To completely prevent this process, it is necessary to replace all rubber parts with similar acrylic parts. They will work with any synthetic oil.

After all components have been replaced, you can switch to a synthetic analogue of oil.

Changing the oil in the VAZ 2106 engine is carried out independently or at a service station, where the technicians will simply drain the old mineral oil and fill in new one; or a specially designed detergent for washing (in case of heavily soiled parts).

In the latter case, the 2106 engine will be started for ten minutes so that the filled liquid can wash away all residual deposits from the use of outdated mineral oil.

Important:

• This operating process is necessary to ensure that the new synthetic oil does not mix with particles of used mineral oil.
• Otherwise, you may encounter blockage of the oil channels. To change the oil in VAZ 2106 engines you need to have certain knowledge. Otherwise, such intervention will lead to engine damage.
• If the vehicle has been in use for quite a long time, combustion deposits will form on the liners and gaskets. The holes in oil seals and head gaskets can become clogged.
• Particular attention should be paid to the general condition of all internal parts, especially check the seals and gaskets.
• When excessive pressure is observed inside the system when the supply tube is clogged, an oil leak can be expected.
• Therefore, to change the oil, you need to buy a high-quality brand that has been tested for decades.