VAZ front-wheel drive cars of the tenth family (VAZ-2110 sedan, VAZ-2111 station wagon and VAZ-2112 hatchback) were equipped with various engines. Among them were carburetor and injection, 8 and 16-valve.

Ignition was also used in two types: from a central distribution module or using independent ignition coils. The reader is invited to one of these engines: the VAZ 2112 engine, the beginning of production in 1997.

Passport data

Initially, the 12th was produced in 2 versions: 21120 and 21124. The characteristics of the 16-valve VAZ 2112 engine of these modifications are given in the following table.

It follows from the table that the technical characteristics of the two versions are quite close, with the exception of the higher torque of the 120th motor.

Power backbone

The VAZ 2112 engine was not created from scratch. Its design scheme with a 16-valve gas distribution mechanism (GRM) repeats the 2110 model, and the cylinder block (BC) is a copy of the "eight" (21083). This can be verified by comparing their geometrical parameters: bore diameter and center distances.

True, the blocks are not interchangeable, since they differ in the diameter of the cylinder head screws (cylinder head). Unlike parts 21083 and 2110, BTs has additional oil channels in the main bearings for supplying oil to the lubrication nozzles. Through these devices, additional lubrication of the lower part of the cylinder surfaces is carried out, as well as cooling of the piston bottom.

Now a little about how the 120th and 124th motors differ from each other. VAZ 21120 contains BC 2112 with a height of 194.8 mm, and 21124 - BC 11193. The height parameter of the latter is 197.1 mm (the so-called "high" block). The 124th crankshaft is longer-stroke compared to the 12th. For motor 2112, the knee has a size of 35.5 mm (stroke 71), and for 21124 - 37.8 mm (stroke 75.6). As a result, the working volume of the 124th version is 1.6 liters, versus 1.5 for the 120th.

The pistons are also different. Both have counterbores to ensure the exit of the valve disc. However, on the 120th engine, their depth is deceptive. It is designed only for the normal operation of the timing, and in the event of a toothed belt break, the “meeting” of the valves with the pistons becomes inevitable. The 124th drive is all right with this, the elimination of the incident will only require replacing the belt without disassembling the power unit.

Replacing the pistons of the 21120 motor with 124s will avoid the troubles associated with a broken belt. True, the power of the VAZ 2112 engine will be somewhat less.

Other differences

The engines also differ in the design of the "inhale". The 120th inlet consists of two aluminum parts: a manifold ("horns") and a receiver, interconnected by rubber corrugations. Unit 21124 "decorates" the intake system, made of plastic and consisting of a single piece.

The ignition system is arranged differently. VAZ 2112 is equipped with an ignition distributor module, and on 21124 individual coils are installed for each cylinder. Due to the differences in the intake and ignition systems, the valve covers also differ.

The 1.6-liter unit has some more differences from its counterpart: the pressure regulator is moved from the fuel rail to the pump, the catalyst is located directly at the cylinder head, there are 2 oxygen sensors (Euro-3) instead of one (Euro-2) for 1.5 liter. The split design of the timing case makes it easy to replace the toothed belt.

People often ask: where is the engine serial number on the VAZ 2112? Indeed, the number located under the air filter is quite difficult to detect. It is located on the rear end of the business center, under the thermostat housing. To find the numbers you need, you need to release the air filter mount and slightly deflect it to the side.

Possible malfunctions

The motor unit of the 12th family, with proper care, works flawlessly, because the basic design was created in collaboration with the German company Porsche, which is an authority in the field of engine building. The only "jamb" is the use of a belt gear. D

ate not even in it, but in the fact that the VAZ stubbornly do not want to take into account Russian realities. The use of a toothed belt requires high-quality spare parts, which, unfortunately, we can only dream of. And not everyone carries out regulated maintenance, relying on the well-known Russian “maybe”.

After all, they made normal counterbores on the piston heads in the 124th engine, and there is no problem, while the 2112 engine, like some other VAZ engines, suffers from a congenital disease called valve bending. The rest of the malfunctions are typical for many internal combustion engines, including VAZ engines:

• The 2112 engine is tweaking. The fault should be sought in the distribution module, high-voltage wires, spark plugs.
• Unstable idling (XX). In this case, the control device, crankshaft position sensors and throttle plate are checked. The last one needs to be cleaned. If the search did not give a result, most likely the DMRV failed.
• The drive stalls on the twentieth or in motion (during gear shifting). This may be due to contamination of the throttle mechanism, its sensor (TPPS) or IAC.
• When starting, the motor "does not seize". If the starter or battery is not to blame, the fault should be sought in the ignition or power system.
• Hydraulic lifters knock or, which is much more dangerous, main or connecting rod bearings. This is usually caused by a decrease in engine oil pressure.
• The motor unit warms up slowly. It is necessary to check the condition of the coolant and the operation of the thermostat.
• The motor pulls poorly, the work process is accompanied by vibrations. It is advisable to diagnose the power unit.
• Insufficient oil pressure - there can be several reasons. One of them is the untimely oil change in the VAZ engine. With prolonged use, the oil pump may fail.

If the indicator is on - there is no oil pressure, the movement should be stopped until the malfunction is clarified, if necessary, resort to the services of a tow truck.

Repair and maintenance of the power unit

As an example, a specific case of repair work is given. Repair of the VAZ 2112 engine was required for several indications: you have to constantly add antifreeze, the lubrication control indicator blinks, hydraulic lifters click. Preliminarily, a compression measurement was carried out, which showed a difference in cylinders up to two atmospheres.

During the disassembly, the causes of the malfunction were determined:

• burnout of the cylinder head gasket, as a result of which the antifreeze went into one of the cylinders;
• corrosion of the mating plane of the cylinder head;
• wear of the liners of the crankshaft main journals;
• exhaust valve guide wear;
• sintering of the insides of the collector.

Description of procedures for restoring the motor:

1. milling of the plane of the head and mating plane of the block;
2. repressing the exhaust valve guides;
3. mechanical processing (without lapping) of valve seats;

Installing new parts:

• pistons of size group C (instead of native B);
• piston rings;
• crankshaft liners and thrust half rings;
• seals and gaskets;
• cooling pump;
• valve stem seals;
• metal cylinder head gasket from Priora;
• toothed belt complete with Power Grip tension roller;
• hydraulic pushers INA;
• candles NGK;
• "spider" 4-1 stainless steel;

They often ask: what kind of oil to pour into the VAZ 2112? In the described case, after assembly, Lukoil Lux 10W40 engine oil was filled.

An oil change on a VAZ 2112 requires 3.3 liters of fluid, and with a concomitant filter change - 3.4, although the total volume of the lubrication system is 3.6 liters.

Tuning options

Lovers of "grabbing" are interested in the question: how much horsepower can a tuning engine get in addition? Tuning the brand 2112 engine is performed in different ways:

• replacement of camshafts with tuning ones (STI-1, STI-2, STI-3.1, Stolnikov 8.9), coupled with the installation of a lightweight SHPG, enlarged throttle valves and 4-2-1 “pants”, will boost the 120th engine up to 120 hp. With;
• if you modify the cylinder head and install wide-phase camshafts, the increase will be 130 - 140 hp. With;
• installation of a crankshaft with a long crank (37.8 mm), refinement of the combustion chamber in the cylinder head and the use of T-shaped valves will increase the power to 150 hp. With.

Fans of the "classic" Zhiguli install the VAZ 2112 engine on rear-wheel drive cars: VAZ-2105, −2107. So that the unit can be located under the hood, even a part of the partition of the engine compartment is cut out.

The generation of 12 engines turned out to be "long-playing". In addition to the above brands, others were later developed: VAZ-21126, -127, -129. They are still installed on LADA Priora, LADA Kalina, LADA Granta cars today.

As a rule, they are changed along with the pistons.

Connecting rods - steel, divided into classes by weight- they are marked with paint or a letter on the cover. On the covers, as well as on the connecting rods, the cylinder number is stamped (it must be on the same side of the connecting rod and the cover).

piston pins

This is what the piston pin looks like.

Piston pin - steel, tubular section. From falling out, it is fixed by two locking spring rings, which are located in the grooves of the piston bosses. According to their diameter, they can be divided into three different classes: 1 - 21,978-21,982 ; 2 – 21,982-21,986 ; 3 – 21,986-21,990 . The piston class is also stamped on its bottom. Piston and pin must be of the same class.

cylinder head

View of the cylinder head on the dismantled engine.

- made of aluminum alloy, common to all four cylinders, is centered on the block with two bushings and fastened with ten screws. On top of the cylinder head are supports, five on each side.

Camshafts

Camshafts and their pulleys

Camshafts - cast, cast iron, five-bearing, each with eight cams. The camshafts are driven by a toothed belt from the crankshaft. Due to the increased loads on the timing belt, its width in the VAZ-2112 engine, in comparison with analogues 2110 (11), was increased from 19.0 to 25.4 mm (respectively, the width of the toothed pulleys and rollers was increased). Therefore, changed and. Under the intake camshaft pulley is a support roller, under the exhaust - tension.

valves

These valves are not afraid of bending if the pistons have grooves.

The valves are made of steel, while the outlet is made of heat-resistant steel with a directional chamfer, and the area of ​​the inlet is larger than the outlet. When compared in size, they are smaller than those of the analogues of the "tenth" model. They are arranged in two rows in a V-shape. They are driven by cams using hydraulic pushers, which in turn are very sensitive to the purity of the oil and its quality. And in the presence of mechanical impurities, premature failure of these elements is possible, which will be accompanied by increased noise during the operation of hydraulic pushers. How to replace these elements is described in detail in this article.

Lubrication system

Lubrication of the VAZ-2112 engine is carried out in a combined way. With the help of pressure, the main and connecting rod bearings, camshaft and hydraulic pushers are lubricated. By spraying, oil is supplied to the cylinder walls from them to the piston rings and fingers, at the bottom of the pistons, to the “camshaft cam - pusher” pair and valve stems. The remaining nodes are lubricated by gravity.

Oil pump

New oil pump.

Oil pump - equipped with internal gears and a pressure reducing valve - mounted on the front wall of the cylinder block. An oil receiver is bolted to the cover of the second main bearing and the pump housing. The oil filter is a full-flow, non-separable filter. The crankcase ventilation system itself is closed, forced, by suction of gases through an oil separator located in the cylinder head cover.

1.1. Overall dimensions of the car VAZ-2110

1.2. Overall dimensions of the car VAZ-2111

1.3. Overall dimensions of the car VAZ-2112

Small-class cars VAZ-2110 (export name Lada 110) with a four-door five-seat body type sedan (according to the international classification class C) are equipped with engines of 1.5 and 1.6 liters, with a capacity of 58–68 kW (79–92.5 hp). s.), located across the engine compartment.

Previously, at the plant, cars were equipped with 1.5-liter engines: first with carburetors, and then with a distributed fuel injection system. Currently, cars are equipped only with engines with a working volume of 1.6 liters: an eight-valve VAZ-21114 and a sixteen-valve VAZ-21124 with multiport fuel injection systems and three-way exhaust gas converters with feedback. Engines comply with Euro-2 and Euro-3 standards.

The body is load-bearing, all-metal, welded construction with hinged doors, front fenders, hood and trunk lid. The VAZ-2110 car is the first sedan in Russia with a hatch opening from the trunk leading to the passenger compartment, which allows you to transport long items.

Part of the release of modification 21103 with a 16-valve VAZ-2112 engine is equipped with air conditioning, and since the end of 2002, by order of ZF power steering.

This modification differs from the basic hood with an integrated radiator grille of a more modern shape and a front bumper, as well as original block headlights. The rear lights, moldings and interior details have also been changed.

In 1998, the production of the VAZ-2111 car (export name Lada 111) with a station wagon body was launched. According to the layout scheme, engine, transmission, running gear, body equipment, this car is identical to the VAZ-2110 car. It features a modified rear end with a large tailgate. The trunk of this car is the most capacious in the family: 490 liters with the rear row of seats raised and 1420 liters when folded.

The release of the VAZ-2112 car (export name Lada 112) with a hatchback type body was launched in 2000. The layout of this car is the same as that of the VAZ-2111, but the body has a large tail angle. Engines are used only with a distributed injection system, both 8-valve and 16-valve. The rear seat folds in a ratio of 2:3, while the boot capacity increases from 415 to 1270 liters. The salon, like other models of the family, is equipped in the “standard”, “norm” and “luxury” trim levels. The latest equipment includes fog lamps, headlight cleaner and washer, 14-inch alloy wheels, three-way catalytic converter (Euro-2), internal anti-noise lining of the hood, security bar in the doors, immobilizer, on-board control system, velvet seat upholstery and soft upholstery doors, central electric door lock, power windows. By additional order, an on-board computer, an electric heater for the front seats, an electric drive for exterior rear-view mirrors, an anti-lock brake system, an airbag and a sunroof are installed.

1.4. The layout of the car VAZ-2111: 1 - engine; 2 – spare wheel; 3 - silencer; 4 – a rack of a back suspension bracket; 5 - drum brake; 6 – rear suspension beam; 7 - fuel tank; 8 - resonator; 9 - disc brake; 10 - shock absorber; 11 - steering gear

The layout of all three cars is almost the same, so it is shown on the example of a VAZ-2111 car.

1.5. Engine compartment of cars with engine mod. 2111 (top view): 1 – engine; 2 – adsorber of the gasoline vapor recovery system; 3 - receiver; 4 - the main cylinder of the brake; 5 - expansion tank; 6 - washer tank; 7 - battery; 8 - air filter; 9 - ignition module

1.6. The engine compartment of all cars from below (engine protection is removed): 1 - engine; 2 - starter; 3 - front suspension cross member; 4 - gearbox; 5 - stretching; 6 - receiving pipe; 7 - stabilizer bar; 8 – front suspension arm; 9 - wheel drive; 10 - engine oil crankcase; 11 - generator

1.7. Engine compartment of cars with engine mod. 21124 (top view with decorative cover removed): 1 - intake manifold with a receiver; 2 - throttle assembly; 3 – a tank of the main brake cylinder; 4 - expansion tank; 5 - washer tank; 6 - inlet pipe; 7 - battery; 8 - air filter; 9 - ignition coil; 10 - protective cover of the timing belt; 11 - adsorber; 12 – a reservoir of a washer of glass of a door of a back (on cars with bodies the station wagon and a hatchback)

1.8. Engine compartment of cars with engine mod. 2112 (top view): 1 – engine; 2 – adsorber of the gasoline vapor recovery system; 3 - receiver; 4 - the main cylinder of the brake; 5 - expansion tank; 6 - washer reservoir; 7 - battery

1.9. Governing bodies: 1 – a nozzle of an obduv of glass of a forward door; 2 - side nozzles of the ventilation and interior heating system; 3 – a cover of a ware box; 4 - clock (electronic or quartz); 5 - display unit of the onboard control system; 6 – a cover of a socket of a radio tape recorder; 7 - cigarette lighter; 8 - front ashtray; 9 - lining of the floor tunnel; 10 – control units*; 11 – parking brake lever; 12 - gear lever; 13 - accelerator pedal; 14 - holder for connecting a portable lamp; 15 – brake pedal; 16 - clutch pedal; 17 - ignition switch; 18 - steering column adjustment knob; 19 - the handle of the hood lock drive; 20 – sound signal switch; 21 - cover of the mounting block; 22 - switch for the trunk lock drive (tailgate) *; 23 – mounting block lock button; 24 - hydraulic headlight corrector; 25 - switch lever for direction indicators and headlights; 26 - outdoor lighting switch; 27 – the switch of forward antifog headlights *; 28 – a control lamp of inclusion of antifog headlights *; 29 – a combination of devices; 30 - a control lamp for turning on the rear fog light; 31 - rear fog light switch; 32 – a control lamp of heating of back glass; 33 - rear window heating switch; 34 - instrument lighting switch; 35 - immobilizer signaling sensor *; 36 - lever switch cleaners and washer glass; 37 - central nozzles of the ventilation and heating system; 38 - recirculation switch; 39 - air conditioner switch *; 40 - control lever for the dampers of the heating system; 41 - controller of the automatic heating control system; 42 - alarm switch; 43 - switch for cleaners and headlight washers *; 44 - windshield blower nozzle

1.10. A combination of devices: 1 – a control lamp of inclusion of a parking brake; 2 - control lamp of insufficient oil pressure; 3 – reserve control lamp; 4 – a control lamp of inclusion of dimensional light; 5 - coolant temperature gauge; 6 - tachometer; 7 – a control lamp of inclusion of the left indexes of turn; 8 – a control lamp of inclusion of the right indexes of turn; 9 – speedometer; 10 - summing counter of the distance traveled; 11 - signal lamp of the fuel reserve; 12 - fuel gauge; 13 – a control lamp of inclusion of a high beam; 14 – a control lamp of inclusion of the alarm system; 15 - signal lamp of the emergency state of the working brake system; 16 - button for zeroing the daily run counter; 17 - daily run counter; 18 - control lamp "CHECK ENGINE" ("check the engine"); 19 - control lamp for charging the battery

This car is equipped with a 4-stroke injection engine. Often, the VAZ-2110, VAZ-2111 and 2112 are equipped with the same engine. In general, this is a modification of the internal combustion engine installed on the 2112. The modernization consisted in increasing the volume to 1.6 liters, while the predecessor could only boast of a 1.5 liter engine . In addition, there was another task - to improve environmental performance to European standards.

Of course, the VAZ-21124 engine is equipped with an electronic control unit. The Bosch M7.9.7 or "January" 7.2 system is usually installed. Accordingly, the first German company, and the second - domestic. These control systems are tailored to Euro-3 and Euro-4 toxicity standards. Each spark plug has its own coil. In general, such a decision was made so that there was no need to use high-voltage wires, and in general, the reliability of the ignition system increased. Years of manufacture - (2004 - today) Cylinder block material - cast iron Power supply system - injector Type - in-line Number of cylinders - 4 Valves per cylinder - 4 Piston stroke - 75.6 mm Cylinder diameter - 82 mm Compression ratio - 10.3 Engine displacement VAZ 21124 - 1599 cm3 Engine power 21124 - 89 hp / 5000 rpm Torque - 131Nm / 3700 rpm Fuel - AI95 Fuel consumption - city 8.9 l. | track 6.4 l. | mixed 7.5 l/100 km Oil consumption - 50 g/1000 km Engine 21124 oil: 5W-30 5W-40 10W-40 15W40 How much oil is in the VAZ 21124 engine: 3.5 liters. When replacing, pour 3.2 liters. Engine resource 21124: 1. According to the plant - 150 thousand km 2. In practice - 200-250 thousand km TUNING Potential - 400+ hp Without loss of resource - up to 120 hp The engine was installed on: VAZ 21104 VAZ 21114 VAZ 21123 Coupe VAZ 21124 VAZ 2114 Super Auto (211440-24)

Malfunctions and repair of the engine 21124

AvtoVAZ continues to develop 16 valve engines and in 2004 the VAZ 2112 engine was replaced with a 124 engine. It uses a Kalinovsky high block, it is 2.3 mm higher compared to the old 2112 block, the piston stroke has increased from 71 mm to 75.6 mm, due to this, the volume has become equal to 1.6 liters. On the same block, behind the air filter, above the gearbox housing, there is a platform on which the engine number vaz 21124 is stamped. Due to the adaptation of the 124 engine to Euro-3 standards, its environmental performance increased, traction appeared on the bottoms, the engine became calmer and a little noisier than the twelfth . Engine 2110 124 1.6 l. injection in-line 4-cylinder with overhead camshafts, gas distribution mechanism has a belt drive. The resource of the motor 21124, according to the manufacturer's data, is 150 thousand km, in practice the motors run about 200 and even 250 thousand km. This engine solved the problem of 16-valve engines - the VAZ 21124 engine does not bend the valve, for this there are holes on the piston bottom with standard or sports shafts with a moderate lift, the owner has nothing to be afraid of. Of the shortcomings, it is necessary to tighten the timing belt every 15 thousand km. If the VAZ 21124 engine is troiting, there is a knock or noise, do not be afraid, this is a common situation for AvtoVAZ. According to general reviews, the 124 engine is considered one of the best VAZ engines and is recommended for purchase, especially if serious improvements are planned. In 2007, a new motor was released, replacing the 124th engine - the well-known prior motor. In addition, on the basis of 124 engines, the Super-Auto company produced a 1.8 liter VAZ 21128 engine, something is also said about it)

Engine tuning 21124

It makes no sense to consider chip tuning of a 124 motor, on a standard car it will not make tangible changes, firmware is needed, for more thorough and correct tuning, after finalizing the engine, we will start with it. The easiest and most standard way to increase the power of the 21124 engine is to replace the camshafts with Stolnikov 8.9 280 or Nuzhdin 8.85, put a 4-2-1 direct-flow exhaust, a receiver and a 54-56 mm damper, this will give us more than 120 hp in total, and for more efficient operation of the motor, we change the piston to a lightweight prior. This will further increase power and reduce fuel consumption. In the case when these figures are not enough, it is recommended to modify the cylinder head and install evil wide-phase shafts, which will give 150+ hp at the output.

Compressor for VAZ 21124 16V

Alternatively, and in order to obtain similar power throughout the entire range, a compressor must be installed. The most common compressor for VAZ is a St. Petersburg whale based on PK-23, but the network is full of videos on compressors both on 8 valves and on shesnar, in one of the most famous videos, the owner of the motor on the compressor clearly explains all the nuances of the installation and what is required for the successful implementation of the project on the example of an eight-valve engine. This compressor can also be installed on a 16 valve engine.

Video installation of a turbocharger on a VAZ

It is possible to increase power without using a turbine up to 200+ hp, using a 4-throttle intake, but the most optimal options suitable for urban use are the methods described above.

4 throttle inlet on VAZ 21124

To increase the stability of the engine and the response of the gas pedal, 4 throttles are installed. The bottom line is that each cylinder receives its own throttle valve and due to this, the resonant oscillations of the air between the cylinders disappear. We have a more stable operation of the motor from the bottom to the top. The most popular method is to install a 4-throttle inlet from Toyota Levin on a VAZ. It is necessary to purchase: the assembly itself, make a manifold adapter and pipes, in addition to this, you need a nulevik filter, injectors, DBP (absolute pressure sensor), fuel pressure regulator and firmware. There are also ready-made 4-throttle intake kits on sale, which are quite suitable for use. Given the exorbitant speed, it is recommended to replace the heavy piston 124th engine with a light prior, wide-phase shafts (at least 280), modified cylinder head, spider exhaust 4-2-1 on 51 pipes or more. With the correct configuration, the 124th engine produces about 180-200 hp. The disadvantages include a reduction in engine life and this is not surprising, because the engines on the pipes spin more than 8000-9000 or more rpm. So you can not avoid constant breakdowns and repairs.

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Engine VAZ 2112 16 valves

Engine 2112 specifications

Years of release - (1997 - 2004)
Cylinder block material - cast iron
Power system - injector
Type - in-line
Number of cylinders - 4
Valves per cylinder - 4
Piston stroke - 71mm
Cylinder diameter - 82mm
Compression ratio - 10.5
Engine displacement 2112 - 1499 cm3
Engine power 2112 - 93 hp /5600 rpm
Torque - 128Nm / 3700 rpm
Fuel - AI95
Fuel consumption — the city of 8.8 liters. | track 5.5 l. | mixed 7.2 l/100 km
Oil consumption - 50 g / 1000 km
Engine weight vaz 2112 - 127 kg
Overall dimensions of the engine 2112 (LxWxH), mm —
Engine oil vaz 2112:
5W-30
5W-40
10W-40
15W40
How much oil is in the engine 2112: 3.5 liters.
When replacing, pour 3.2 liters.

Resource:
1. According to the plant - 150 thousand km
2. In practice - 250 thousand km

TUNING
Potential - 400+ hp
Without loss of resource - up to 120 hp

The engine was installed on:
VAZ 21103
VAZ 2111
VAZ 2112

Malfunctions and repair of the VAZ 2112 engine

The VAZ 2112 (21103) engine is a qualitative evolution of the VAZ 2111 engine, but with 16 valves instead of 8 and giving rise to a series of VAZ gears that are produced to this day, already in the form of a motor prior.
The main differences between the 2112 engine and 2111 are the use of 4 valves per cylinder, 2 camshafts, which allows the engine to supply more fuel-air mixture to the combustion chamber at a time and quickly remove exhaust gases to the exhaust channel. Up to 3 thousand rpm, the engine works about the same, after 3 thousand 16V it becomes much more dynamic. At the same time, fuel consumption is lower than on 8 valve 2111.
Engine VAZ 2112 1.5 liters. injection in-line 4-cylinder with an overhead camshaft, the gas distribution mechanism has a belt drive. Cylinder block 2112, same as on 21083 , but with modified mounts under the cylinder head and additional oil channels for main bearings, the VAZ 2112 engine number is stamped on the block under the thermostat. The normal operating temperature of the engine is 2112 - 90 degrees. The resource of the engine 2112, according to the manufacturer's data, is 150 thousand km, in practice the motors run more than 250 thousand km.
The reverse side of the coin is the VAZ 2112 engine, when the timing belt breaks, the valve bends. The problem is solved by installing pistons from 124 engines, while we will inevitably lose a few horsepower. In case of unwillingness to lose power, you need to constantly monitor the condition of the belt. To do this, we listen to the sounds coming from the drive, the rollers usually begin to squeak when cold, then rustle, and then collapse. The pump starts to leak (the belt will be in the coolant). The shaft seals are leaking (the belt is in oil). The shafts wear out - the belt begins to slide to the side and rub against the roller flange (grinding when cold). Also, the belt can slip due to curved rollers.
Problems and malfunctions: troiting the 2112 engine or trimming - measure compression, is it normal? Check the ignition module, high-voltage wires and candles, these are the main problems in this case.
The engine speed of the VAZ 2112 1.5 is floating, the following should be under suspicion: throttle valve (clean), idle speed controller, crankshaft position sensor, throttle position sensor (check, change) is not it? Then the DMRV is to blame.
The next malfunction, at idle and when driving (when shifting gears), the 2112 engine stalls, the problem is in a dirty throttle valve, or in the IAC (idle speed controller), possibly TPS (throttle position sensor).
We look further, the 2112 engine does not start, what is the reason? The first is the starter and battery, the second is the ignition system, the third is the power system, if you can’t hear the operation of the fuel pump, check its power, is everything okay? Check the pressure in the fuel supply system.
Another malfunction, the VAZ 2112 engine does not heat up or it heats up badly to operating temperature, the thermostat is dead, change and ride without problems.
What's next, is there some kind of knocking noise in the VAZ 2112 engine? Almost always the problem is in the hydraulic lifters. If they have nothing to do with it, then low or too much oil pressure or connecting rod or main bearings knock, and pistons can knock. In this case, it is better to go to the service for diagnostics. It’s better to go for diagnostics and in the case when the VAZ 2112 engine is not pulling well, here you need to measure the fuel pressure in the rail, it may be the injectors, the filters may be clogged, or maybe the clutch has arrived corny.
That's not all :) Do you feel the vibration of the VAZ 2112 engine? The problem is: the idle speed controller, high-voltage wires, candles, lambda probe, voltage regulator, nozzles are clogged, the ignition timing is incorrectly set. The list is decent, so as not to guess and waste time, we go for diagnostics.

Engine tuning VAZ 2112 1.5 16V

Chip tuning engine VAZ 2112

The first thing that comes to mind for a novice tuner is engine firmware, all offices promise that your engine will fly at least ... all this is heresy. Firmwares give the most minimal effect, which is very difficult to feel, you need to think about chip tuning when a motor with a turbine, aspirated is a waste of money. Since it is correct to boost the VAZ 2112 engine, with minimal loss of resource and with a maximum increase in horses.The easiest and rather standard way to increase the power of the VAZ 2112 engine is to replace the camshafts with STI-1 (for a standard receiver), STI-3.1, STI-2 or Stolnikov 8.9 (more expensive than the rest), to make life easier for the engine, we put a light SHPG from 126 motor, throttle 54-56 mm, from the mounted receiver and exhaust 4-2-1. At the output we have about 120 hp. The refinement of the cylinder head and the evil wide-phase shafts can increase power to 130-140 or more hp.
To this it is worth adding a crankshaft with a stroke of 75.6 to increase the volume of the VAZ 2112 engine to 1.6 liters, light T-shaped valves, refinement of the cylinder head and intake manifold, we get about 140-150 hp at the output. For the city, these indicators are enough for almost any motorist.

Installing a compressor on a VAZ 2112

An alternative method to refine the 2112 engine and obtain similar power is to install a compressor. The well-known video clearly explains everything that is required for the successful implementation of the project using the example of an eight-valve engine, this compressor can also be installed on a 16-valve engine, the output of the motor will be more than 130 hp. You can use other compressors, but blowing more than 0.5 bar into a standard motor, without reducing the compression ratio, is a risky business.

Attention MAT (18+)

Throttle on VAZ 2112

To increase the stability of the engine and the response of the gas pedal, 4 throttles are installed. The bottom line is that each cylinder receives its own throttle valve and due to this, the resonant oscillations of the air between the cylinders disappear. We have a more stable operation of the engine from the bottom to the top, plus, such an intake is shorter and the air enters the cylinders as quickly as possible. The most popular method is to install a 4-throttle inlet from Toyota Levin on a VAZ. It is necessary to purchase: the assembly itself, make a manifold adapter and pipes, in addition to this, you need a nulevik filter, injectors, DBP (absolute pressure sensor), fuel pressure regulator and firmware.
There are also ready-made 4-throttle intake kits on sale, which are quite suitable for use.
It is recommended to install a light piston (for example, from Priora), because. turning a heavy piston is an additional waste of energy, wide-phase shafts, for example STI-6 or STI-7 Touring Light, modified cylinder head with light valves and solid pushers, Opel C20XE springs, spider exhaust 4-1 or 4-2-1 by 51, and better than 63 pipes.
With the correct configuration, the 2112 motor produces about 180-200 hp. In order to completely launch the car into space, at a volume of 1.5 liters, we put STI Sport-8 shafts. It makes no sense to write a motor configuration for such shafts, it is up to the few to decide to assemble such a thing.
The disadvantages include a reduction in engine life and this is not surprising, because the engines on the pipes spin at 8000-9000 or more rpm. So you cannot avoid constant breakdowns and frequent repairs of the 2112 engine.

Turbo engine VAZ 2112

The desire to inflate your engine haunts all owners of a one and a half liter shesnar, how to implement proven and correct boost methods on your engine is described at the very bottom of the article, all these principles apply to the 2112 engine.