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For the rear-wheel drive sedan VAZ-2103 (LADA 1500) or simply “troika”, the domestic manufacturer initially provided a new engine 2103 with a displacement of 1.5 liters, built on the basis of 2101. This model also used proven engines from a “kopeck” to 1 .2 liters and from VAZ-21011 by 1.3 liters. VAZ 2106 engines were produced in small quantities for the third Zhiguli model.

Engine VAZ 2103

The 1.5-liter four-cylinder in-line carburetor power unit of the VAZ 2103 received an overhead camshaft, a timing chain drive and a high engine block, which allows the installation of a crankshaft with an extended piston stroke.

Zhiguli engines often suffer from camshaft wear or the lack of a tensioner in the drive chain, which needs to be tightened every 10 thousand kilometers. If a loud knocking noise occurs in the engine, you will have to adjust the valve clearances to avoid a drop in power, increased fuel consumption, valve burnout, and other things.

Also among the disadvantages of the engine for the “troika” is the need for constant adjustment and cleaning of CO. If the engine overheats, pay attention to the pump.

If tripping occurs, you need to change the compression.

Engine tuning is possible in a wide range: from boring to compressor and turbines.

Among motorists, the VAZ-2103 engine is in good standing, compared to other units in the line. The long service life is due to the availability of spare parts and their low cost. With careful treatment of the engine and timely maintenance, the VAZ-2103 will travel not 125 thousand kilometers declared by the manufacturer, but all 180-200 thousand kilometers.

Engine VAZ 2106

The 1.6-liter VAZ 2106 engine became a continuation of the VAZ 2103 and, as a consequence, 2101. The main differences from its counterparts are in the piston with a diameter increased to 79 mm, while the engine block remained unchanged.

How much does Zhigulevsky weigh?

The Lada Seven, according to documents, has a mass of 1049 kg. However, her weight

practically no different from any other brand of car from the Volzhsky Automobile Plant.
The average weight
of this Soviet car, which is often scrapped, is around one ton.

Hello, my name is Evgeniy Sokolov. Since childhood I have been fascinated by cars, especially how they work

And I received the appropriate technical education. In my blog I write reviews of models, technical characteristics and operating experience of various industrial and agricultural special equipment.

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Weaknesses of the VAZ-2106 engine

The engine of the VAZ-2106 car is a modification of the power unit from the Troika. It is quite possible that this is why its design retained a number of weak points of its predecessors. Domestic craftsmen have learned to diagnose engine problems almost by sound. As an example, we will give several symptoms of breakdowns, and also tell you which engine elements could fail:

• The appearance of loud knocking noises at idle clearly indicates the need to adjust the valves. Under normal operating conditions, this problem usually occurs no more often than once every 7-10 thousand kilometers;
• The occurrence of metal-on-metal knocking indicates that the connecting rod bearings or piston pins are worn out. Both faults must be corrected immediately to prevent serious damage to the power unit;
• the so-called ceramic knock may indicate that the pistons of the VAZ-2106 have failed. You can still get to a car service center with such a breakdown, but it’s definitely not recommended to travel around the city and beyond;
• extraneous sounds in the lower part of the engine, which are accompanied by a sharp drop in the oil level - this is a clear sign of problems with the main bearings. In this situation, it is better to immediately use the services of a tow truck, since an independent trip even a short distance is fraught with major troubles.

In addition, quite often VAZ-2106 owners encounter the following carburetor and ignition system malfunctions:

• insufficient or, on the contrary, excessive fuel enrichment;
• throttle problems;
• failure of a high-voltage wire;
• moisture entering the ignition coil insulator;
• spark plug wear.

All these malfunctions, with experience, can be eliminated in no time - you just need to remove the damaged unit, disassemble it and, accordingly, replace the worn parts.

How much does a VAZ classic cylinder block weigh?

VAZ cylinder block sizes: 2103, 2106, 21213, 21214, 2123, 2130.

Applicability - on engines: VAZ-2103, 21043, 21053, 21061, 2107.

What size piston rings for VAZ 2103:

How much does the VAZ 2106 engine block weigh? — Weight — 39,200 kg.

Applicability - on engines: VAZ 2106, 21067, 21074, 2121 Niva.

Applicability - on engines: VAZ 21213, 21073, 21214.

Applicability - on engines: VAZ 21214, 21073, 21213.

Applicability - on engines: VAZ 2123.

Applicability - on engines: VAZ 2130.

All of the above blocks are used on engines that belong to the line of “classical” design engines.

All these cylinder blocks share the same dimensions:

— the distance between the axes of adjacent cylinders, which is 95.00 mm;

— diameter of the bed for the crankshaft supports.

The table shows the main dimensions of VAZ cylinder blocks. (block repair dimensions)

* - discontinued by JSC AVTOVAZ

DC

— Cylinder diameter of the VAZ block;

H

— The distance between the upper plane of the block and the axis of the crankshaft (height of the VAZ block);

Lc

— Distance between the axes of adjacent cylinders of the block (inter-cylinder distance);

d

— The diameter of the boring of the crankshaft supports (for the main bearings).

Based on the results of final processing of the surface of the cylinders, depending on the diameter dimensions, a cylinder size class is assigned. There are five size groups defined for cylinders, which are designated by letters: A, B, C, D, E. Cylinder class

applied to the surface of the block, opposite each cylinder. For each nominal cylinder diameter, its own size classes are adopted.

For a cylinder with a certain class, a piston of the corresponding class is selected.

Control of the diameter and wear of the surface of the cylinders is carried out using a device - a bore gauge.

Measurements are taken at the level of several belts, in mutually perpendicular directions. In the upper part of the cylinder, at a distance of no more than 5 mm from the upper plane of the block, there is an area where there is no wear and the size corresponds to the nominal diameter of the cylinder. If in one of the other control sections of the cylinder, size deviations exceeding 0.15 mm from the nominal are detected, then it is necessary to bore the cylinders of the block, followed by honing them to the nearest repair size. Depending on the operating conditions of the engine and compliance with technical requirements, the need for cylinder boring may arise after 120 - 250 thousand km. vehicle mileage.

To increase the service life of the blocks, two repair sizes have been determined for each of the nominal cylinder diameters. Each repair size

differs from the previous size by 0.4 mm. The table shows the repair dimensions of the block cylinders, their intermediate dimensions for boring and honing.

Repair sizes of pistons of the corresponding class are selected for repair sizes of cylinders. As a result, a gap of 0.05-0.07 mm between the cylinder and the piston is achieved.

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VAZ-2106 engine weight

On a VAZ-2106 car, the weight of the engine without gearbox is 121 kilograms. Therefore, it is strictly not recommended to try to remove or move this unit alone - this is a direct path to serious injury. It is best to hire an assistant who can help you during the process of dismantling or installing the motor.

With all the necessary equipment, including both the cylinder head and the ignition system, the engine weight will be even greater - 140 kilograms.

Finally, when assembled with the gearbox and the devices attached to it, this value will increase by another 26 kilograms.

As you can see, weight can be considered a significant disadvantage of the car compared to imported analogues. To reduce it, increase power, and also improve dynamic characteristics, many drivers today install parts made of light metal alloys.

In 1984, a diesel version of the “six” was released at a Bulgarian automobile company. Replacing a gasoline engine with a diesel engine didn't have much of an impact on the car's performance. Firstly, the Bulgarians failed to increase the power of the power unit. Secondly, its weight increased by about 10 kilograms, which can also be called a disadvantage of the alteration.

What we managed to significantly improve

Improved characteristics of the VAZ 2106:

• Using a new cylinder block of improved design with a changed diameter.
• The VAZ 2106 engine has increased power due to an increase in the total volume of the power unit and improved characteristics and properties of the cylinders.
• The use of new gaskets due to changes in cylinder diameters.
• Equipped with pistons with a diameter of 79 mm, borrowed from the eleventh model.
• Ensuring uniform heating of the pistons thanks to cylindrical wells in the motor and the use of steel temperature control plates on the pistons.

The most common breakdowns of the sixth engine

Car owners most often encounter the following defects in engine operation:

1. The internal diameter of the cylinder increases by 0.15 mm after traveling more than 5 thousand km. This defect occurs if the engine lubricant is not replaced in a timely manner.
2. The camshaft is worn out.
3. Sound effects in the form of tapping in the engine. This defect can be eliminated by adjusting the valves and replacing the fuel with higher octane fuel. If these measures do not help, then you need to contact the nearest service station, where the pistons and connecting rod bearings will be diagnosed and repaired.
4. Oil pressure drops. In this case, the lubricant does not reach the rubbing surfaces, as a result of which the friction force increases, causing the gaskets to burn out, accelerated wear of the working parts, and the device becomes unusable.
5. Creaks indicate a breakdown in the timing chain tensioner, damper or pump bearing.
6. If the engine stalls while driving, you need to look into the ignition or power systems.
7. The engine turns off at idle when there is a failure in the idle speed or air damper adjustments.
8. Engine trouble, with this defect it is necessary to adjust or replace burnt valves and cylinder head gasket. The cause of tripling can also be fuel with a low octane number.

Tuning rules

The main goal of high-quality tuning is improved engine performance. And the desired result can be achieved using the following methods:

• boosting the engine;
• chip tuning;
• replacing the ignition system with a more powerful one.

The most difficult and one of the most expensive procedures is increasing the diameter of the cylinders and the piston stroke. The weight of the VAZ car does not change, but the output power increases significantly. The best solution in this case is to replace the cylinders, which will be both easier and cheaper to install. The overall dimensions of the components will change very slightly and will not affect the ride quality in any way. Dimensions make themselves felt only when the vehicle is overcrowded or faulty.

Another effective tuning method is to improve the dynamic performance of the engine, achieved in the following way:

• the weight of the crankshaft and connecting rod-piston system is reduced;
• adjustment of gear ratios;
• adjustment of electronic systems.

The torque of the car will not change much from such actions; the power will increase, but only slightly.

Radical methods can come to the rescue, allowing those who wish to carry out in-depth tuning.

It consists in selecting a special crankshaft to replace the factory unit. This will allow you to change the car, practically reduce the ground clearance, and increase power. After all the necessary elements have been replaced, the vehicle as a whole is repaired and debugged.

Chip tuning is a relatively new modernization method that allows you to change parameters without mechanical intervention using special software. How much the engine weighs and when it was produced does not matter. The system will cope with any, even the most difficult, circumstances.

Replacing the ignition system belongs to the category of progressive tuning techniques. The best solution is a block called non-contact and allows you to significantly gain in power.

Experimenting with your own car is, of course, good, however, when deciding on the next modification, you need to think about whether they will be the last thing that the vehicle will finish off . The range of experiments is wide, so there is no need to rush. It’s better to think carefully and choose what will really come in handy.

This is interesting: What is a drive belt for?

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.

Sixth engine - description of technical characteristics

Main technical characteristics of the motor:

1. The 2106 cylinder block is made of cast iron.
2. Power is supplied using a carburetor circuit.
3. Engine type: gasoline, in-line.
4. The number of cylinders in the block is 4.
5. Each cylinder with a diameter of 79 mm is equipped with two valves.
6. The piston stroke is 80 mm.
7. The compression ratio of the engine is 8.5 atmospheres.
8. Engine power of the VAZ 2106 is 75 hp.
9. The speed is 5400 rpm.
10. The torque is 116 Nm.
11. Recommended fuel is AI 92.
12. The assembled weight of the VAZ 2106 engine is 121 kg.
13. Changing the oil in the VAZ 2106 engine - the required amount is 3.5 liters.
14. Types of recommended brands of motor oil: 10w-40.5w-40, 15w-40, 5w-30.
15. Tuning VAZ 2106 - horsepower is 200.

Each engineering improvement led to a significant improvement in the design, as evidenced by the presented characteristics of the VAZ 2106 engine.

Why does the engine get hot?

The most common defect of the 2106 engine is its overheating. The engine operating temperature is just before +96°C.

The reasons that the engine began to get very hot may be malfunctions of the following systems and components:

• thermostat, air lock;
• radiator, its clogging;
• low quality of liquid used for cooling;
• the fan has failed.

If engine overheating is detected, you must immediately stop the car and carry out a thorough examination and eliminate the cause. If the engine begins to heat up due to a broken thermostat, then this device must be replaced with a new one. .

If there are defects in the radiator, it is necessary to give time for the coolant to cool completely and only then begin diagnostics, drain the antifreeze and repair the damage.

In conclusion

“Kopeyka” is rightfully called a legend of Soviet automobile production. People appreciated this car for its reliability, practicality and affordability. This modification has not been produced for a long time, but it can be purchased on the secondary market. There are quite well preserved copies. In addition, the VAZ-2101 represents a limitless field for tuning. Craftsmen “put their hand” to literally all parts of the car, from equipping the interior to modifying the body and power unit.