The VAZ 2103 engine with a displacement of 1.5 liters is the third of four generations of Togliatti classics. He was the heir to the engines 2101 for 1.2 liters and 21011 for 1.3 liters. And the 2103 engine itself became the basis for creating the 1.6-liter engine 2106. On this, the classic line of motors ended, giving way to the injector and front-wheel drive.
Place in the line of VAZ engines
The entire classic line of AvtoVAZ is a redesigned engine Fiat models 124. The alteration was by no means cosmetic, already the model 2101 (1970) was noticeably different from the prototype. The camshaft was moved to the top 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 the short-stroke.
Next came the 21011 motor, the cylinder diameter of which was increased by another 3 mm to a value of 79 mm. Due to this, the working volume of the engine has increased, the power has grown slightly. In 1972, the VAZ 2103 was released - the first four-eyed Zhiguli model. It was equipped with a new and most powerful engine at that time in 71 horsepower. The cylinder diameter was returned to the value of 76 mm, and the piston stroke was increased by 14 mm. The working volume was 1452 cubic cm. This motor for a long time enjoyed a reputation as the most tenacious. Even a mileage of 250 thousand km is not an incomprehensible value for him with proper care and regular operation.
The successor of the 2103 engine (engine 2106) differs from it only in the cylinder diameter increased to 79 mm.
Characteristics of the VAZ 2103 engine
The technical characteristics of the 2103 engine reflect its position in the line of AvtoVAZ engines. It was installed on the VAZ 2103, 21023, 21043, 21053, 21061, 2107 models. This is an in-line four-cylinder carbureted engine internal combustion with two valves per cylinder, which runs on AI-92 gasoline. For the operation of the motor, oil from 5W-30 to 15W-40 is used, while the consumption is 700 g per 1000 km of run.
The 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 was created, a variant with contactless system ignition and many others. These modifications are distinguished by improved technical characteristics.
The resource of the VAZ 2103 engine, declared by the manufacturer, is 125 thousand km. In practice, the resource is often twice the declared.
Engine design VAZ 2103
The device of the VAZ 2103 engine is classic motor with an overhead gas distribution mechanism, which has a high cylinder block. The VAZ 2103 carburetor has a distributor with vacuum regulator ignition advance. The height of the engine is 215.9 mm instead of 207.1 (for 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 cylinder block VAZ 2103 is cast from special cast iron. The 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, its height is 112.5 mm.
To drive the gas distribution mechanism (GRM), a two-row bush-roller chain with 116 links is used. The chain tensioner is missing. To drive the generator and the water pump, a V-belt with a section of 10 × 8 mm and a length of 944 mm is used. 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 a tin coating on the outer surface. Piston rings are made from cast iron. The barrel-shaped surface of the top compression ring is chrome-plated. The lower compression ring is hardened by phosphating. Oil scraper ring has a spring-expander, ground on the ends and on the outer diameter.
Treshka engine operation
In general, the operation of the engine does not cause any special problems. Timely completion maintenance work, oil change, adjustment of the VAZ 2103 carburetor, the use of high-quality motor fuel provide a long period of operation of the motor. There is in the operation of the engine and its own specifics, which must be taken into account.
One of the specific features of the 2103 engine is that chain drive the timing mechanism does not have a chain tensioner. This leads to the need for periodic revision, and in some cases, restoration of normal performance is also required. The regulatory frequency of such an audit is 10,000 km. With some experience, you can do this adjustment yourself. Here step by step diagram actions:
- completely unscrew the cap nut of the tensioner;
- finger controlling the position of the tensioner rod, turn the crankshaft 1-1.5 turns in the direction of its rotation;
- as soon as the tensioner rod sinks, the spring will automatically adjust the chain tension through the shoe;
- tighten the cap nut.
Another important routine procedure during the operation of the VAZ 2103 engine is the adjustment of thermal valve clearances. The need to repair the valve arises when there is a distinct knock in the engine at low speeds. Adjustment is carried out in the following order:
- Align the marks on the gear and camshaft housing.
- Use a 0.15 mm wide feeler gauge to adjust the 8th and 6th valves.
- Turn the crankshaft 180 degrees and adjust 4 and 7 valves.
- Rotate the crankshaft another 180 degrees to expose valves 1 and 3.
- Rotate the crankshaft again 180 degrees to adjust 5 and 2 valves.
You can rotate the crankshaft by rolling the car forward in fourth gear.
It's no secret that the first Kopeyka is a prototype of the Italian FIAT 124.
Accordingly, the first of the VAZ engines was originally only a refinement of its predecessor, a kind of tuning of the VAZ engine.
The characteristics of VAZ engines have been changed:
- Due to the transfer of the camshaft from the bottom to the top, an increase in the cylinder diameter by 3 mm, a decrease in the piston stroke by 5.5 mm, the unit became more responsive due to the transformation into a "short-stroke". The speed picked up faster, throttle response began to be felt more strongly with sudden changes in the position of the accelerator.
- The only disadvantage of the motor at that time, which received the marking, was an increase in noise.
- 4 years later, after the modification of "Kopeyka" 21011, a modernized VAZ engine of the same name appeared with markings identical to model number. It began to differ from its recent ancestor in the following indicators: the working VAZ grew from 1200 to 1300 cm3, the cylinder diameter increased by another 3 mm, and the power increased by 3 “horses”. This VAZ engine was installed both on models of the 01 series and on subsequent models of 2102.
- Carburettors for these engines produced 3 series until 1978, and later Ozone 2105 appeared, which acquired autonomous system idling, slightly changing the technical characteristics of the VAZ engine. These carburetors have become much more practical, the car is easier to start in cold weather, and fuel quality had less effect on idling and a sharp press on the accelerator.
Further tuning of the VAZ engine consisted in strengthening the transmission, which the Italian engineers liked, and later they began to apply Soviet modifications to their units.
Later, exports began to spread, and for the first time a rotary engine on the VAZ appeared on cars sent to neighboring states.
It was the first successful experiment, but due to the complexity of repairing such a unit and the practical absence of spare parts, over time, these types of motors became unclaimed. Although analysts predicted a good future for units of this type, it was only necessary to properly establish the market for spare parts.
Motor VAZ 2103
Since the end of the 70s, on cars produced by special order, for example, for some police units, a completely new power unit, which has different technical characteristics, unlike other VAZ engines.
It was installed both on the later "Kopeyks" and on the followers - export 2102, 2103, and later on 2121, 21053.
It became a natural refinement of 2103 in order to improve the technical characteristics of VAZ engines in the direction of power.
The engineers achieved it:
- increasing the working volume to 1600 cm3, using the cylinder diameter, which again became 79 mm.
- The pistons for this Vaz engine were used from 21011 and, like the donor, it had two repair sizes. Other fundamental differences from 2103, these engines for the VAZ did not have, since they were equipped in the same way as the older relative, with an Ozone-type carburetor and an ignition distributor with the same vacuum regulator.
But special sympathy among the owners, as in their time rotary engines on VAZ during export, the 2106 engine was not found, since the owners of 2103, 2121, 2107 tried to select exactly more reliable engine Vaz 2103.
This was due to the lower viability of 2106, the instability of work when using fuel more than Low quality. The saddest outcome was the burnout of the valves and the unit required overhaul in these cases much more often than 2103.
Motor VAZ 21083
Before considering the characteristics on VAZ engines of a completely new principle, it is worth paying attention to such transitional units as 2108, 2110 and 2111, since it was from them that the era of fuel injection by an injector and the birth of front wheel drive.
Both of these motors are installed on models 2108, 21083, 2109, 21099, so replacing the old one is currently very popular carburetor engine on the injection, due to the numerous advantages of the latter.
What changed:
- The fundamental difference, like its predecessor 2108, was that it had to be transverse in placement due to front-wheel drive. The brand new piston, which used a special micro-profile, retains grease much better than the early 2103s that were tin plated.
- 21083 is being finalized with a cylinder diameter of up to 82 mm, a working volume of up to 1500 cm3, maximum power while from 65 l. With. increases to 68, and the torque from 95 to 100.5/3400.
- The timing drive of VAZ engines of the 8th family becomes a belt drive, unlike 2103, where there was still a chain. The quality of this change is certainly debatable, but every car enthusiast finds positive and negative sides in any type of timing drive.
- The new 21083 also includes a new carburetor, which becomes much more economical than its predecessor, a completely different oil pump, the drive of which comes from the crankshaft; a gasoline pump with outlet and inlet pipes on the same line, as well as a structurally different water pump.
Motor VAZ 2111
As mentioned above, the VAZ 2111 engine is the beginning of an era multipoint injection fuel. The appearance of cars of the "tenth family" allowed engineers to work in a qualitatively new direction, and in general, it became successful, completely changing typical parameters work injection engines Vaz.
Motor 2111, as well as its heirs 2112, 21114, 21124, 21118 are installed on car models 2108, 21099, 2111, 2112, in their various modifications, as well as on Lada Kalina. Many owners of old carbureted cars, without cheating on their favorites, they simply put a new injection unit into their cars, which prolongs their life for more than a dozen years.
What changed:
- In a fifteen-year period, these units changed their volume from 1500 cm3 to 1800, and the power was increased by 20 liters. With. And if the 2111 motor is a kind of modification of 21083 and 2110, which is distinguished by additional mounting holes for the generator, an ignition module and a knock sensor, then, for example, the engine is a fundamentally different unit. Chip tuning of the VAZ engine takes distribution from him.
- The only controversial point in particular about these VAZ engines is the increase in the number of valves from 8 to 16. And if you ask yourself which engines the valve bends when the timing belt breaks, then you need to remember only one engine modification: 2112, despite the fact that this one of the most common VAZ engine for tuning.
- In addition, it has completely different characteristics among VAZ engines and other typical operating parameters of VAZ injection engines. Unlike 2111, power is increased to 93 hp here. With. (2111 - 78), torque 127/3700 (115/3000), with reduced volume from 1600 to 1500 cm3.
- Another camshaft appears here, as well as a different system for supplying air to the cylinders. This motor has naturally become more powerful, but the driver is more likely to suit a more relaxed and economical driving style due to the torque at low revs.
- The difference between the later 21114 and 21124 is that they had an increase in the height of the cylinder block by 2 mm, and the crankshaft stroke increased from 71 to 75.5. These technical characteristics determined the addition of volume to the VAZ engine up to 1600 cm3.
- Plus, it's changed a bit. fuel system with a rail of injectors, the fuel return line is being phased out, a catalytic converter is installed.
- Fundamentally new system ignition is now a four-pin coil, and not an ignition module, as on 2111. The quality of such an ignition is certainly better, but some problems may appear during the plant in winter, but this is only out of habit.
Most often, when choosing a car, given the technical characteristics, the owners try to avoid this unit, but this is done only by those who are not very painstaking about caring for the motor, since you can avoid trouble timely replacement belt, and the purchase of this part should be treated more responsibly.
When choosing a belt, you can only trust a trusted manufacturer, information about which can be found on the network or from friends, since you cannot 100% trust sellers in stores. Frequent fakes are not ruled out well-known firms, which leads to an underestimation of one or another belt. Accordingly, at least within the period set by the standard characteristics, the belt simply must be checked by the owner.
tuning
It is noteworthy that the tuning of the VAZ engine, as well as its repair, is feasible for any owner who has at least a little knowledge of the technical characteristics of VAZ engines and has encountered repair or overhaul of the motor.
But here there is a choice between efficiency and power. It is also important to know which engines the valve bends on. The approaches to them are very difficult.
The most common is such a tuning of the VAZ engine, in which the output parameters increase. For example, installing a new camshaft with an adjustable pulley, replacing connecting rods and pistons to increase displacement.
Well, in order for the power to be realized in the dynamic data of the car, they change gear ratios gearboxes. This is the most budgetary tuning of the VAZ engine without outside interference during auxiliary units, despite the fact that this very tuning can be much more extensive.
It should be remembered that any increase in power leads to additional expense fuel and reduces the life of the unit, respectively, it requires increased attention to maintenance and replacement Supplies. Therefore, the issue of tuning must be approached painstakingly and it is desirable that a person who is well versed in this takes part in this.
Which engine is better 2103 or 2106
Cars VAZ-2103 and 2106, commonly called the three and six, have a lot of similarities, because of which many people cannot find a difference between the two models. Indeed, both cars are outwardly similar to each other, and the differences in terms of body features are minimal. But real motorists can easily give many signs of difference between the three and six, and in this article you, dear readers, will also see the differences. This car was produced at the Volga Automobile Plant for twelve years, from 1972 to 1984.
VAZ was developing it together with by an Italian company Fiat, and the trio was developed just on the basis of one of the models Italian manufacturer. In the seventies, the VAZ-2103 made a splash among Soviet motorists, the car could accelerate to 100 km / h in seventeen seconds. He was boldly compared to European cars, and among Soviet models the trio was the most dynamic machine. For 12 years, about 1P300P000 models were produced, the main difference of which is high comfort and reliability. Then the VAZ-2103 was replaced by more modern model VAZ-2106. This model was intended to replace the VAZ-2103, although not to say that the changes in the body and technical specifications cars were very serious.
The Six also enjoyed great success among Russian motorists, and only in 2006 it became necessary to remove the model from production. Depending on the series, the cars were equipped with a four- and five-speed mechanical box gears. rear wheel drive car VAZ-2106 could reach speeds of up to 150 km / h, while maintaining increased comfort for the driver and passengers. The model was mostly bought by poor people ( middle class) due to low cost. It cannot be said that the VAZ-2106 model that replaced the VAZ-2103 was completely different.
Not at all. The changes were minimal, although there are quite a few signs of difference. So, what is the difference between VAZ-2103 and VAZ-2106:
The standard model VAZ-2103 had an engine capacity of 1.5 liters, while the VAZ-2106 had 1.6. That's why maximum speed the six was slightly higher, but at the same time, the acceleration of the three was slightly better.
As for the differences in the bodywork, the headlights and grille are striking here. The design of the headlights of the VAZ-2106 has undergone minor changes: it has become more strict, plus the distance between two headlights of one pair has become a little more. But the radiator grill of the six (later models) was made of plastic, while the VAZ-2103 had a metal grill. The taillights of the VAZ-2103 had a very simple and uncomplicated design, and in the middle one could notice a small dividing strip.
And here is the design rear lights VAZ-2106 became improved, and the dividing strip was not visible. VAZ-2103 did not have a button alarm. It could be installed separately.
But on the VAZ-2106 she was already present. TheDifference. Ru determined that the difference between VAZ-2103 and VAZ-2106 is as follows:
Various engine sizes.
Consequently, different speed(it is higher for the sixth model) and acceleration (for the triple better overclocking). The VAZ-2106 has undergone changes in the design of the headlights. Plus, a different material was used for the plastic grille. External differences can be seen in the design of the rear lights. The absence of a triple alarm, which was installed separately. In the six, this shortcoming was eliminated.
What is better: three or six? Let's discuss in the comments!
