In 1976, the VAZ factory has started serial production of the new “sixth” models cars with rear-wheel drive. This car was similar in many ways to “third” the model, but were positioned as a more prestigious and dynamic. This was achieved by the use of engine 2106, which had increased to almost 1.6 liters displacement and higher values of power and torque.
Due to the high power motor are suitable for use on off-road “Field” model 2121. Partly because of this, this motor was the most long-lived power unit “classic” family. Nowadays, the production of several modifications of engines created using the motor unit “six”.
The design of the new engine was based on solutions proven on already-produced power units of VAZ. The main difference was the block in which the diameter of the cylinders was increased to 3 mm. the height of the counterweights on the crankshaft remained the same-liter-motor “third” model.
Due to the increase In volume slightly increased engine power characteristics 2106 to 80 forces. With the motor docked to a four-speed gearbox with specially selected gears. Thanks to her, the car could reach a speed of 152 km/hour, which was a very good indicator at that time.
The technique of increasing the volume used by designers before. It thus was created the "eleventh" the 1.3-litre motor on the basis of a little bored of the block the very first Togliatti 1.2-litre unit.
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On the basis of the engine VAZ-2106 was created by the motor of the model 21213 is widely used in machines “field”. To further increase the volume of the cylinders wasted another 3 mm in diameter, which gave an increase of almost 100 more cubes. The power of the motor has reached 80 force (like early "sixes"), but significantly increased torque, it reaches 127 N/m. the Motor is equipped with electronic fuel injection and are available now commercially.
Further boring the block is not possible because the greatly reduced wall thickness to the cooling channels and begin to uncover the possible casting defects. Technologically they are valid and can be located in the depth of the casting material. Therefore, further increase in volume is achieved by increasing the piston stroke. This is a rare variant of the 1.8-liter unit with a larger 84 mm stroke. Such motors develop up to 82 forces and was used on some models of ‘Fields’.
The Main part of the engine is the cylinder block made of cast iron, with the lower part of the crankcase. In this part there are seats for five piers of the main shaft of the engine. The bottom cover supports are processed together with Carter and not interchangeable between them. In the design of all bearings used replaceable liners with thin walls made of a special alloy. The ends of the shaft is sealed with special sealing gaskets. The use of these details eliminates leaking oil in the motor.
On the front of the motor, a pump for coolant. The drive pump is a conventional V-belt from crankshaft pulley. The same belt drives the generator, placed on the side of the crankcase 2106. The generator is mounted on a special bracket and can be rotated relative to one of the towers. Thanks to that adjusts belt tension. On the back of the unit has a clutch housing, which made a spot for the starter.
The Upper part of the block is closed by a head cast from aluminum alloy. In the head is a drive shaft of a valve, the valve (two per cylinder) and the spark plugs. Between the head and the block is equipped with a special gasket which ensures tightness of the joint. The gasket is made of special material with a basis of asbestos and has internal metal frame, which ensures a longer life of the gasket.
Mount the head to the block is 11 bolts that are tightened with a certain force and in the planned sequence. This is done to ensure uniform pressing plane of the head to the block. Any violation of the tightening leads to burnouts of the pads, warping of the surface and the occurrence of leaks of oil and coolant.
The Front of the engine covered by aluminum cover, behind which is located the drive chain shaft valve train. This same chain is rotated the oil pump gear diagram. The pump is responsible for supplying oil under pressure to the bearings of the supports. Oil intake from the reservoir is placed in the removable tray of the engine. To clean the used oil filter with a replaceable paper element.
The drive Shaft of a valve located directly in the head. Thisdesign allowed to provide good for its time, the technical characteristics of the engine VAZ-2106. Photos of the motor below.
In the construction of valves of exhaust gas used a combined design from two parts, welded together. Both parts made of steels of different brands. This scheme has resulted in a high longevity of the part. A thermally less loaded inlet valve is executed from one material. The surface of all valves undergo cycles of thermal and chemical processing that allows them to work in high temperatures.
Fuel in the early versions of the engine 2106 used carburetor system "Weber". With the release of the more modern devices of the type "Ozone" they were installed on the “sixth” engine. With the new carb motor was a little cheaper, but lost some HP. In the early 2000's, the engines were equipped with fuel injected by the fuel injection system. Such power units were equipped with machine “fifth” and “seventh” model.
On carbureted cars used the ignition with the distribution of impulses from a mechanical device installed on the side of the case. Injector version is equipped with an electronic module that distributes the ignition pulses according to signals from the position sensor of the motor shaft.
Because Of the wide distribution and low cost motor “six” is often the subject of tuning. Engine 2106 is equipped with a new camshaft with modified phases and the height of the valve opening. This installs valves with enlarged diameter, which improves filling of the cylinder.
The channels for supply and production of working gas inside is carefully polished, since the irregularities on the walls create turbulence in the moving gas flows and reduce the operating parameters. These two methods are the most basic ways of increasing the power of the motor 2106.
A More advanced version of the tuning is to install a lightweight crankshaft and boring the cylinders to the maximum possible diameter – not more than 82 mm. due to different geometric dimensions of the shaft used modified cranks with reduced weight. To further improve power parameters of the motor install the blower, serving to increase the pressure.
The Engines of VAZ-2106 is equipped with turbines from different cars. The boost allows to significantly increase the capacity, but decreases the reliability and General resource of the power unit. The maximum power of the uprated versions of “sixth” motor can reach 120-150 forces.
Article in other languages:
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ES: https://tostpost.com/es/coches/37943-el-motor-vaz-2106-especificaciones-el-tuning-y-fotos.html
HI: https://tostpost.com/hi/cars/22647-2106.html
JA: https://tostpost.com/ja/cars/20635-vaz2106.html
PL: https://tostpost.com/pl/samochody/40606-silnik-vaz-2106-dane-techniczne-tuning-i-zdj-cia.html
PT: https://tostpost.com/pt/carros/40277-o-motor-2106-vaz-especifica-es-tuning-e-foto.html
TR: https://tostpost.com/tr/arabalar/35468-motor-vaz-2106-teknik-zellikleri-ayar-ve-foto-raf.html
Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."
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