At VAZ-21126 the engine is in-line, it hasdistributed injection, four-stroke and camshafts are located at the top. Like most modern ICEs, cooling is liquid, closed, circulation is forced. Lubrication of engine components is done by spraying under pressure. The engines are installed on the modern models of the VAZ-Prioru and the subsequent ones.
Distinctive features of the motor
The installation of the VAZ-21126 engine for the entirea series of Lada Priora, as well as its modifications. Some motorists without special alterations put such engines on "tens" and twelfth. A kind of tuning that allows you to use more opportunities - installation of the power steering, air conditioning, is possible without rework. Simultaneously, the development of the engine of the series 11194, so most of the components are the same, regardless of the fact that the working volume differs significantly. The task of developers in the design was to significantly increase the life of the engine. And you can achieve the goal if you increase the life of all the individual nodes.
On the car "Priora" engine 21126was developed on the basis of a similar unit model VAZ-21124. But they have many differences: a reduced mass and the dimensions of all elements. For example, pistons with the same dimensions have on the model 21126 mass of a hundred grams less. The height of the internal combustion engine is 197.1 mm - this is the distance between the axis of rotation of the engine crankshaft and the upper plane. There are no design differences from the 11193-1002011 block used on the motor 21124. The main features are the extremely high quality of the cylinders, as well as the height that has been changed to a greater extent.
Main characteristics of the motor
Engine VAZ-21126 has a working volume of 1.6 liters(more precisely, it is 1.597). The normal compression ratio of the motor is 11, only 4 cylinders. Total power at a speed of 5600 rpm - 98 liters. from. or 72 kW. The crankshaft rotates at idle speed with a frequency of 800-850 revolutions. At a crankshaft speed of 4000 revolutions, the engine develops a maximum torque of 145 N * m. Such data is possessed by the engine 21126. The price of the used mechanism makes 25000 rubles and above. The new ones cost much more.
Characteristics of the cylinder-piston group:
- The stroke of the piston is 75.6 mm.
- The diameter of the cylinder of the motor is 82 mm.
- The number of valves is 16.
- The cylinders work according to the scheme 1-3-4-2.
Injection distributed, control with helpelectronic digital unit. The engine runs on the 95th unleaded gasoline, the ignition of the mixture occurs with spark plugs of the type AU17DVRM or BCPR6ES (NGK). The mass of the engine in the assembled form is about 115 kg.
Engine piston group
The development of the piston group is the merit of the firmFederal Mogul. Specialists made a motor with elements, the mass of which is much lower than in engines like VAZ-21124 - predecessors. But if you compare with the VAZ-2110, it will be seen that the mass of the piston group has decreased by about a third. The diameter of the pistons remained unchanged, but the height was significantly reduced. Thinner piston rings and smaller fingers are also used. This directly affects the speed and power characteristics of the engine. The easier it is for him to untwist himself, the more power he can give to the box.
In the lower part of the pistons there are small holesdepths. The hole for fitting the conrod pin is offset from the axis by half a millimeter. The diameter of the hole for installing the piston pin is 18 mm. Fixation is made with the help of locking rings, installing the connecting rod in the piston - with a minimum clearance. This ensures the smallest displacement of the crank axis along the crankshaft neck.
Required to be honed - applicationsmall pattern in the form of a grid on the inner surface of the cylinder liner. The quality of the working surface is high, since processing is carried out using Federal Mogul technologies. Marking of the engine block VAZ-21126 16 valves with the index 1002011, it is applied to the metal surface. The block color of this modification is gray.
Cylinders 21126 have three classes, dimensionsdiffer by 0.01 mm (denoted by the letter indices A, B and C). The crankshaft used on the engine has an index of 11183-1005016. Landing dimensions for it exactly correspond to crankshaft VAZ-2112. But with several differences: on the modification 11183 the radius of the crank mechanism (37.8 mm) was increased, the total stroke of the pistons was 75.6 mm. To distinguish the crank from other models, a corresponding designation is available on the counterweight.
Drive mechanisms of the engine
The crankshaft pulley is equipped with a toothed pulleytype, is denoted by the index 21126. The teeth at the pulley are designed to work with a belt of a gas-distributing mechanism, in which a semicircular tooth. In order not to slip the belt during operation, on one side there is a small band of metal (flange). On the reverse side, the washer is mounted. The damper is mounted on the crankshaft - model 2112. It is necessary for the drive of the attachments and the generator.
On the pulley, there is also a toothed disc, whichis required for the crankshaft position sensor. To drive the additional equipment - the generator, the GUR pump, a poly-V-belt type 1115 mm long is used, it has the designation 2110-1041020. If there is no hydraulic booster, then a poly-V belt of type 2110-3701720 is used, the length of which is 742 mm. If there is an air conditioner on the car, all equipment is driven by a belt of type 2110-8114096, the length of which is 1125 mm.
Piston rings and fingers
The diameter of the rings is 82 mm, they are thin, unlike the traditional ones for VAZ. Height:
- Compression - 1,2 mm (upper), 1,5 mm (lower).
- Oil-removable - 2 mm.
The outer diameter of the fingers is 18 mm with a length of 53 mm. The difference with the predecessors is significant. Thanks to the use of light elements, it is possible to achieve an increase in power, efficiency, and torque.
The speed dial of the car is faster.But this is reflected in all other units of the car - it is necessary to use a more efficient braking system, to install quality ventilated discs, pads. Therefore, if you are self-tuning, pay attention to all the little things.
Connecting rod for engine 21126
This unit is applied more thin, contact withCrankshaft at the head of the connecting rod is not, which significantly improves the characteristics of the engine. Thanks to the use of this design, it was possible to reduce the friction in the nodes, which significantly increased power and efficiency. The accuracy class of the piston must correspond to that of the cylinder of the internal combustion engine. The marking of the pistons can be found on the bottom surface.
On the VAZ-21126 engine has a connecting rod morelightweight than on the model 21124. The latest technologies are used in the manufacture. The length is 133.32 mm. Part of the workpiece of the connecting rod is broken - it turns out the lid. Thanks to this method, it is possible to combine the surfaces of products as accurately as possible. Fastening of the cover is carried out with the help of bolts, the repeated use of which is unacceptable. Inserts for connecting rods have a width of 17.2 mm.
Cylinder head of the engine VAZ-21126
In the head of the block there are two camshafts and 16valves, from the model 2112 differs in that the platform for installing the automatic belt tensioner is slightly larger. Also the size of the area under the flanges of the discharge pipes is changed to a larger extent. Valves, springs for them, hydraulic pushers and camshafts - exactly the same as the model 2112, there are no differences. Camshaft pulley designations:
- Two circles, located next to the teeth, on both sides of the mark - the outlet.
- One circle on the left side of the label is the inlet.
With the help of hydraulic pushersautomatically compensate for the clearance in the valve actuators. Therefore, when using a car with such a motor, there is no need to adjust the valve clearances. The original design of the automatic belt tensioning system of the newest type, the previously used types of rollers are not used. Belt of 137 teeth with a different type of profile. This entailed the installation of a new pump design, more efficient than previously used.
Fuel and exhaust systems
The catalytic converter used on the engine 21126, whose characteristics are highly dependent on the exhaust system, uses a more perfect one. Its diameter is larger than on model 21124.
Different types of catcher collectors are able to providecompliance with the standards of toxicity of Euro-3 and Euro-4. On the engine are installed 4 ignition coils - one for each candle. This allows you to get rid of high-voltage wires.
The fuel system is not much different from the one,which was used in the early models. Ramp from stainless steel, injectors - Bosch, Siemens, VAZ. The injection is phased, controlled by sensors, actuators connected to a microcontroller control system of the type "January-7.2" or M-7.9.7.