“Treshka”, “six” and the whole Zhiguli family. Part 2

Place in the VAZ engine line

The entire classic AvtoVAZ line is a redesigned engine of the Fiat 124 model. The alteration was by no means cosmetic; already model 2101 (1970) was noticeably different from the prototype. The camshaft was moved to the upper part of the engine, the piston diameter was increased by 3 mm, and its stroke was reduced by 5.5 mm. At the same time, the engine became more responsive due to its short stroke.

Next came the 21011 engine, the cylinder diameter of which was increased by another 3 mm to a value of 79 mm. Due to this, the engine displacement has increased and the power has increased slightly. In 1972, the VAZ 2103 was released - the first four-eyed model of the Zhiguli. It was equipped with a new and most powerful engine at that time with 71 horsepower. The cylinder diameter was returned to 76 mm, and the piston stroke was increased by 14 mm. The working volume was 1452 cubic cm. This engine for a long time enjoyed the reputation of being the most durable. Even a mileage of 250 thousand km is not an incomprehensible amount for it with proper care and normal operation.

The successor to the 2103 engine (engine 2106) differs from it only in the cylinder diameter increased to 79 mm.

Reviews

This “Classic” still delights car enthusiasts. Many consider the Troika to be one of the most durable cars ever produced in the USSR. She captivated us with her high-spirited engine, attractive design and high-quality interior.

However, there are weaknesses in 2103. For example, poor corrosion resistance. This problem has plagued the car since the very beginning of production. The wheel arches, which were deprived of fender liners, were at particular risk. Also, the thresholds are rotting.

There are also complaints about the motor. The latter is prone to overheating, and its cooling system works mediocre.

More detailed information on the problems of a specific model can be found on the Internet, on the corresponding forum. There you can watch useful videos and chat with the owners.

Characteristics of the VAZ 2103 engine

The technical characteristics of the 2103 engine reflect its position in the AvtoVAZ engine line. It was installed on the VAZ 2103, 21023, 21043, 21053, 21061, 2107 models. This is an in-line four-cylinder carburetor internal combustion engine with two valves per cylinder, which runs on AI-92 gasoline. To operate the engine, oil from 5W-30 to 15W-40 is used, with a consumption of 700 g per 1000 km.

Main characteristics of the VAZ 2103 engine

During the life cycle of the VAZ 2103, the engine was repeatedly refined and improved. An injection version of the engine, a version with a contactless ignition system and a host of others were created. These modifications have improved technical characteristics.

The service life of the VAZ 2103 engine, declared by the manufacturer, is 125 thousand km. In practice, the resource is often double the declared one.

Distinctive features of the VAZ-2106

This model was discontinued relatively recently, just eight years ago. Despite the fact that the changes in it were not so significant, the “six” was in even greater demand among domestic motorists. There were several series of this car. Depending on them, the VAZ-2106 could be equipped with a four- or five-speed manual transmission.

If we are talking about the rear-wheel drive VAZ-2106, then it should be noted that it could reach speeds of up to 150 km/h . At the same time, at least according to the manufacturer, increased comfort for the driver, as well as each of his passengers, was maintained. By the way, these two models were intended for poor people, for the middle class, as it is now commonly called.

VAZ-2106

VAZ 2103 engine design

The VAZ 2103 engine design is a classic engine with an overhead gas distribution mechanism, which has a high cylinder block. The VAZ 2103 carburetor has a distributor with a vacuum ignition timing regulator. The height of the engine is 215.9 mm instead of 207.1 (for the VAZ 2101). This made it possible to increase the working volume to 1.5 liters and use a crankshaft with an increased piston stroke.

The VAZ 2103 cylinder block is cast from special cast iron. The center-to-center distance is 95 mm, which makes it possible to increase the cylinder diameter from 76 to 79 mm. The cylinder head is made of aluminum alloy and its height is 112.5 mm.

To drive the gas distribution mechanism (GRM), a double-row bushing-roller chain with 116 links is used. There is no chain tensioner. To drive the generator and water pump, a V-belt with a cross-section of 10×8 mm and a length of 944 mm is used. The crankshaft has a crank radius of 40 mm and provides a piston stroke of 80 mm.

The pistons and valves of the VAZ 2103 model are similar to the pistons and valves of the 2101 model. The pistons are made of aluminum alloy with the outer surface coated with tin. Piston rings are made of cast iron. The barrel-shaped surface of the upper compression ring is chrome-plated. The lower compression ring is strengthened by phosphating. The oil scraper ring has an expander spring, ground at the ends and along the outer diameter.

Engine selection

Car owners often choose the VAZ-2112. You can transfer the engine and all the filling from a VAZ-21045 or VAZ-21055. As a result, you will get a VAZ-2106 diesel. The main advantage of installing such VAZ units is that they will fit exactly. In addition, in this case you will not have to spend a lot of money and time to go through the re-registration procedure.

A good option is to install a motor from Priora. Installation of such a 16-valve unit will provide your car with 100 hp. With. It should be borne in mind that this procedure for replacing the motor is not easy. You'll have to use a grinder to cut the engine shield and weld the pan. You will need to reinstall the crankshaft bearing to a figure-eight bearing. You will also need to modify the flywheel, exhaust and cooling system, and accelerator drive. If you are willing to spend a lot of time, effort and money, then this method of increasing engine power is suitable.

If for some reason you are not considering installation options from VAZ, pay attention to the Fiat 124. This engine is one of the few that is ideal for the VAZ-2106

At the same time, the work required to install it and the effort and time spent will be minimal. The engines are also quite powerful: Lancia Thema (834), Alfa Romeo (06476) and Fiat Croma (154). You can consider options for such engines, since they are well compatible with a VAZ car, have a fairly long service life and good technical characteristics.

If you want to turn your car into a BMW, install one of these engines: 326, 536 or 746. Such power plants are distinguished by high power. Therefore, in any case, when choosing them, you will have to strengthen the suspension, braking system, etc. Otherwise, driving the car will become dangerous for you and for your passengers.

If you are planning to install a Japanese drift engine, be prepared for the fact that your expenses will be quite large. A considerable amount of modifications will be required, since (professional) drifting is simply impossible in a regular car. Any machine that is prepared for these activities goes through a huge number of changes. VAZ-2106 is no exception.

Engine tuning 2103

The potential of the VAZ 2103 engine is so high that it is difficult to resist the temptation to squeeze more out of it. There are craftsmen who squeeze up to 200 horsepower out of a car. This kind of tuning of the VAZ 2103 engine is extreme in nature and is not recommended for everyday driving on regular roads.

There are many options for boosting an engine. One way to increase engine power and improve other performance characteristics is to convert the engine into a VAZ 2106 engine. To do this, you need to bore the cylinders to a diameter of 79 mm and replace the piston group with parts from a six. The remaining elements remain the same, the units are unified in all parts. Assembly of the VAZ 2103 engine after such tuning is carried out without problems.

Another popular way to boost this engine is to install a 0.5 bar compressor on it. This upgrade is quite simple and does not require major modifications. Such tuning can increase power up to 100 horsepower. This is a relatively affordable engine upgrade option. After all, there are ready-made installation kits on the market that provide a pressure of 0.5 or even 0.7 bar.

If you take care of your car and timely repair the VAZ 2103 engine, the car will not let you down on the road. And it will delight its owners for many years with its reliability and excellent driving performance.

The VAZ 2106 (Lada-1600), popularly called the six, is the most popular rear-wheel drive classic sedan model produced by AvtoVAZ. The car was released in 1975 and is a development of the VAZ 2103, where in addition to a modified appearance and a number of technical aspects, the power unit was modified.

In this article, we will look at both the engines themselves that were installed on the six and their characteristics. We will not ignore the shortcomings and weaknesses of these engines.

ENGINE VAZ 2106

Engine VAZ 2106 1.6 l. is a continuation of the three and, as a consequence, the power unit of the penny. The difference between the VAZ 2106 and 2103 is primarily in the piston of increased diameter, while the engine block of the 2106 is the same. There is an option with the index 21067 of the injection type, this is a banal six engine, covered with a cylinder head from the injection Niva engine 21214 from the injection Niva.

In practice, the carburetor engine of the six proved to be better than the injection one. The 2106 engine can be either injection or carburetor type, it is in-line with four cylinders, and has an overhead camshaft. Timing chain drive. The engine is a representative of the “classic” series, which is characterized by a high block.

The main and most common disadvantages of the VAZ 2106 engine include the following. The engine is demanding on oil, as well as on its timely replacement. If this requirement is ignored, the cylinder diameters increase over time. Having mentioned oil, it is necessary to note the fact that the engine is also quite gluttonous when it comes to oil. If this goes beyond reasonable limits, it is necessary to measure the compression, based on the result you can determine what the problem is: valves or rings.

The camshaft wears out quickly on the engine. In addition, it is necessary to adjust the valves in a timely manner, otherwise knocking noises may occur at idle. If we talk about extraneous noises and sounds, it should be noted that: characteristic metallic sounds indicate problems with the piston pins or connecting rod bearings, knocking while the engine warms up indicates problems with the pistons, squeaks indicate problems with the timing chain. In general, the engine is quite noisy and various noises and knocks are a frequent occurrence for it.

Test

The personification of high status

“Troika” stands out among the entire classic Zhiguli family. Attention is drawn to the chrome bumpers, radiator grille, as well as moldings, which add gloss and laconicism to the body design.

The headlight optics are made separate. This has significantly improved the efficiency of the high beam lighting, and also gives the front end some aggression.

Unobtrusive respectability

The interior captivates with its ergonomic front panel - all controls are located in close proximity to the driver. Finishing materials are of high quality, and assembly is neat.

The front panel consists of a tachometer with a marked zone for maximum engine speed, as well as a speedometer. To the right of them are indicators for fuel level, coolant level, and engine oil pressure. Under the instruments you can find the lights and windshield wipers.

The dashboard is notable for the presence of a clock and a spacious ashtray. The climate system is controlled by two sliders. It heats the interior well in cold weather. As for the standard radio receiver, it has good signal reception and sound.

The front seats have some hint of profile and lateral support, but are still imposing and do not provide the body with proper support. Three people can sit on the back sofa, however, two people will be much more comfortable here due to the folding armrest.

With a twinkle

The half-liter engine gives the Troika a cheerful temperament - it is worth noting good traction at low speeds, as well as playful pick-up at medium speeds. The transmission and clutch work harmoniously, making it easy to get going and shift without jerking.

Moreover, the manual transmission boasts good shift clarity, but the long lever throws are somewhat disappointing.

The steering does a good job of informing the pilot about the angle of rotation of the front wheels and allows active maneuvering at speeds of up to 80 kilometers per hour. Above the specified speed, low sensitivity appears on the steering wheel, and yaw on the road is noticeable.

The suspension ensures a highly smooth ride on any uneven surfaces - even on large potholes there is no vibration or shaking. However, on long asphalt waves the rocking is intrusive.

The braking system deserves a separate discussion. A brake pedal with a long stroke makes it possible to accurately dose the braking force, but if it is depressed sharply, the wheels lock too early, which can lead to loss of control over the car.

Photo VAZ 2103:

What engine

better than VAZ 2103 or VAZ 2106

Auto VAZ-2103 and 2106

, popularly called three and six, have many similarities, because of which many people cannot find the differences between the two models. Indeed, both cars are similar from the outside, and the differences in terms of body features are small. But true car owners can simply cite many signs of the difference between the three and the six, and in this article you, dear readers, will also see the differences.