VAZ 21067 engine and its technical characteristics

An interesting solution from Soviet manufacturers was the VAZ 21067 engine, which was a slightly modified version of its predecessor. This power unit produced up to 82 horsepower at 5600 engine rpm. Peak torque was reached at 3500 rpm and amounted to 122 Nm.

The VAZ 21067 engine injector has become interesting for buyers, since its power system has been completely revised. Now, the ill-fated carburetor, which caused a huge number of problems, was no longer necessary.

Specifications

Decoding of the index in the name of the AvtoVAZ engine

At first, the internal combustion engine index was tied to the car model on which it first appeared.

Now the concern has formed a unique system for naming its units:

First two digits

11 or 21 means the number of the workshop where their assembly was established

Third digit

here it acts as a separator and for now it is always equal to one

Fourth digit

indicates the number of valves: 1 and 8 are 8v, and 2, 7 and 9 are 16v

Fifth digit

reports the position of the internal combustion engine in the series and the larger it is, the newer the engine

Peculiarities

The technical characteristics of the VAZ 21067 engine were obtained thanks to the fact that engineers refined and improved the 2106 model. First of all, the power system of the power unit, which provided for distributed fuel injection, was improved. In this particular case, the system from the 2104 engine was used, which had previously shown itself to be quite good.

The power unit turned out to be quite powerful due to the fact that it is equipped with four cylinders, which together give a working volume of 1570 cubic centimeters. At the same time, the manufacturers managed to achieve a weight of only 121 kilograms.

The VAZ 21067 block, like its predecessor, was created on the basis of an earlier model of the VAZ 2103 engine. The main change was that the diameter of each cylinder became reduced, which led to a power of 74.5 horsepower. But this solution, in combination with an increase in the piston stroke, made it possible to achieve maximum performance at engine speeds of 5400.

The alterations led to the appearance of a new model of the power unit. Among other things, the engine began to be equipped with a modified cylinder head gasket made from higher quality materials.

The VAZ 21067 engine number is located the same as on its predecessor model. Everything here is classic for domestic solutions - the panel with markings is located on the lower air supply box.

Description

The VAZ 21067 engine is compatible for installation on VAZ 2103/6/21/053/07 car models

Model 21067 has been modified and improved from model 2106. These improvements have been made to the power system, which features distributed fuel injection. In this case, they are used exactly as on the 2104 engine.

Euro 2 standards - absolute compliance

This engine is quite powerful, equipped with four cylinders, each of which has a volume of 1.57 liters and a diameter of about eight centimeters, and the engine weighs one hundred and twenty-one kilograms.

Based on the earlier model VAZ 2103, they created the VAZ 2106 . It is precisely due to the fact that the diameter of each cylinder was made larger, its power, accordingly, became 74.5 horsepower, and the speed at which the crankshaft rotates is 5,400 rpm. Based on the alterations described above, a new cylinder block appeared in the new engine model, its model 2106 - 1002011. In addition, an already modified gasket on the block was used in the improved product.

Characteristics and properties

Types of oils that are suitable for motor 21067: 5 W - 30/40; 10 W - 40; 15 W - 40. The volume of oil that fits into the 21067 engine is 3.75 liters.

Peculiarities

Pistons of this engine The pistons imitate the 21011 model. In this type of pistons, the well is made in the shape of a cylinder, and the stroke of one is 8 cm. The piston design of this type has a cylindrical well. Its stroke is 8 centimeters. When the piston is used in the operation of the engine, different parts of it warm up at different rates. It is for this reason that its shape is slightly different from that of a regular cylinder. And this helps ensure that the subsequent heat and deformation are compensated. For the same purposes, certain thermal control plates, which are made of high-strength steel, are located in the piston bosses.

The hole made for the small piston is deliberately made with a deviation from the central axis. This was done specifically to reduce the level of permissible loads as much as possible. And near such a hole there is a special designation - “P”, which serves as an indicator for the correct assembly process. After all, upon completion of the work done, such indicators should be directed to the front part of the cylinder block. As for the rings in the pistons, they are of a standard size, their material is chrome-plated cast iron, which has a beneficial effect on their long period of operation. There are some configuration options when such rings are made of steel.

In this engine model, the crankshaft is made the same as in the VAZ 2103. The generator of the model is installed - G 221. The starter is 1300 Watt, model 35, 3708. Everything else is exactly the same as in the 2103 model.

Advantages

The engine has been sufficiently redesigned, so in comparison with its predecessors it has received a large number of advantages. But most of them turned out to be classic for domestic models:

• The design and repair of the VAZ 21067 engine still remained quite simple, so its suitability for repair is very high. You can purchase any parts in almost all stores, and even major repairs can be carried out in an ordinary garage without any problems.
• An injector appeared in the engine. The VAZ 21067 injection engine, unlike its predecessors, did not require constant monitoring in the form of ignition settings, adjustment of jets and their cleaning. The use of such a power system made it possible to slightly reduce consumption and also achieve stable operation.
• The VAZ 21067 January 7.2 ECU has appeared, which can be diagnosed without any problems using the k-line adapter VAG. But at the moment, friends from the Middle Kingdom have made ELM, which can easily cope with the assigned tasks on almost all VAZ models.

Malfunctions of the VAZ 2107 injection engine

Problems with the 7 injection engine usually manifest themselves as follows:

• The engine is running erratically.
• Fuel consumption of the VAZ 2107 has been increased.
• There is an increased CO content in the exhaust gases.
• Dips when pressing the accelerator pedal.
• The engine “does not pull” (reduced power).
• To diagnose injection system faults, special equipment is required. In particular, in order to read error codes and check sensor readings and the operation of the engine ECU, a special computer (tester) is required. Therefore, repairs and diagnostics of the VAZ 2107 injector are carried out at specialized service stations. The most common cause of injector failure is clogged injectors.

Problems

But the VAZ 21067 internal combustion engine is famous not only for its advantages, but also for its disadvantages, which are generally characteristic of most power units from domestic manufacturers. These are classic problems, the main ones being:

• There are no hydraulic compensators, which requires frequent adjustment of the thermal clearances of the valves (every 10 thousand kilometers). As a rule, a signal for the need for this procedure is engine noise.
• The camshaft wears out very quickly. This is due to a flaw in the design of the lubrication system, so the camshaft is the weakest point in the engine. At idle, the required oil pressure is absent, which is very noticeable. In order for the engine to have a longer service life, it is necessary to fill only high-quality oil and also change it in accordance with the regulations.
• The cooling system remains from the old engine. This is a serious problem because fuel injected engines have a leaner mixture, which causes the engine to run hotter. Therefore, while moving when it is warm outside, the cooling system fan starts working very often. This entails that the fan bearing quickly fails.
• Big expense. Despite all attempts by domestic engineers to reduce these indicators, the old design made its presence felt. In winter, the engine can consume up to 15 liters of gasoline per 100 kilometers.
• Problems with attachments. Although the motor itself has a fairly long service life, the attachments are not of particular quality, so they often create problems.
• The brains of the VAZ 21067 can simply burn out. This is a common problem, especially for the first engines, since manufacturers were just testing the design of the electronic control unit on them.

Reliability, weaknesses, maintainability

Reliability

The reliability of the VAZ-2106 is beyond doubt. The engine is truly durable and reliable. Numerous positive reviews from car owners confirm this.

For example, Andrey from Stavropol states: “... according to the technician, this is the first repair on a VAZ 2106 engine in 27 years of operation with a mileage of 200 thousand km...”.

Dmitry from Smolensk completely agrees with him: “... 195 thousand cars have already been driven on it. I use semi-synthetics. No one climbed into the engine, and the technicians said that it was not necessary. The car is good in winter, when the guys in the yard couldn’t start their jeeps at -30 in -35, my VAZ 2106 started 1-2 times…”.

There are, of course, negative reviews. But in them, the authors themselves agree that on their part there was no proper care of the engine or there was aggressive operation of the machine.

The reliability of the internal combustion engine is stubbornly indicated by the fact that the engine's mileage has exceeded its service life. With timely and high-quality maintenance, the engine can last up to 400 thousand km without major repairs.

The concept of safety factor plays an important role in reliability. VAZ-2106 can be boosted to 200 hp. With.

It must be remembered that such tuning negates the durability of the unit. Mileage is reduced tenfold. And the costs of remaking the engine are also not cheap. For lovers of powerful engines, an engine swap would be the most suitable option.

Another indicator of the reliability of the unit is its modernization. Based on the VAZ-2106, several versions of this engine were created, which were used on various models of VAZ cars.

Weak spots

The VAZ-2106 has weaknesses inherent in all VAZ engines. It should be noted that many of them are provoked by the car owners themselves.

Maslozhor. Occurs when using cheap types of oil. The consequences of this phenomenon are quite serious, resulting in significant material costs. Malfunctions caused by increased oil consumption - sticking of rings, increased wear of the ShPG. The only solution is to overhaul the engine.

Overheat. Causes could be a faulty thermostat, water pump, or stuck cooling fan. The issue is resolved by replacing them.

Floating speed. This malfunction is mainly caused by clogged carburetor jets or fuel filter. Maintaining the power system and using clean fuel eliminates this problem.

Extraneous noise when the engine is running. Here the culprits in most cases are unadjusted valves. Depending on the mileage and “age” of the engine, knocking noises can be caused by worn camshaft cams or piston pins. In any case, to identify the cause of unauthorized noise, the engine requires careful diagnostics.

Vibration when the motor is running. It can occur due to wear or destruction of engine mounts, incorrectly set ignition, carbon deposits in the combustion chambers and for a number of other reasons. In this case, it is also impossible to do without diagnostics.

Timely detection and elimination of identified faults allows you to significantly reduce or completely eliminate their negative impact on the engine.

Maintenance

The engine needs to be serviced in the same way as other models of classic power units. Everything here is quite simple, so most owners do not encounter problems. For correct operation, you need to change the timing belt every 40 thousand mileage.

The lubricating fluid must be replaced every 10 thousand kilometers. The block is designed to hold 3.75 liters, but during replacement, some of the old grease remains inside, so it is recommended to fill only 3.5 liters there.

Gasoline and air filters are regulated to be replaced every 20 thousand kilometers. But here it is already necessary to look at the operating conditions, because if the engine operates in rural areas where there is a lot of dust, then the period for replacing the air filter element is significantly reduced.

The valves are adjusted after a run of 10 thousand kilometers. But as practice shows, this period can be significantly reduced if poor fuel or low-quality lubricants are used.

Chassis, steering and braking system

The front suspension of the VAZ 2107 has an independent double wishbone design with two shock absorbers and springs, as well as a stabilizer bar. The rear suspension is dependent with a rigid beam, which is connected to the body through one transverse and 4 longitudinal reaction rods. The suspension design is complemented by two hydraulic shock absorbers with coil springs.

wheels - 5Jxl3H2 (permissible offset 25-30 mm);

tires - 175/70R13 (165/70R13).

The steering mechanism of the VAZ 2107 is a globoidal “worm” driven by a double-ridge roller (gear ratio 16.4). Drive – three-link (2 lateral symmetrical rods, middle symmetrical rod, pendulum arm, swing arm, bipod).

The VAZ 2107 brake system has a foot (foot) drive through a vacuum booster. Its design also includes an emergency sensor and a brake fluid pressure regulator in the rear wheel drive. The parking (hand) brake is activated by a cable that engages the rear wheel chocks. The rear wheels are equipped with a drum-type brake mechanism.

The brake mechanism of the front wheels has a classic disc design with automatic clearance adjustment.

Modifications

VAZ engineers did their best when they developed this power unit, but they did not stop there, so they constantly refined it. Since then, two engine modifications have appeared:

• VAZ-21067-10 is a special modification of the power unit, which was developed specifically for the VAZ 21074-20 model. The main differences from the standard model were the reduction in displacement to 1451 cubic centimeters. The engine power reached 71 horsepower, and the torque was 112 Nm.
• VAZ-21067-20 - the power of this engine is 74 horsepower and the torque is 120 Nm, and it was developed specifically for installation on the VAZ 21074-30 car. The changes affected the cylinder diameter, which was now 82 millimeters, and the piston stroke was 75 millimeters. The key difference between the engine was cleaner exhaust, which complied with the Euro 3 standard.

Which gasoline is better to fill in - AI-92 or 95?

Which gasoline to prefer: 92 or 95 is a traditional topic of discussion among car enthusiasts. And although the operating instructions for each car indicate the permissible class of gasoline, debates about the advantages of one or another brand of fuel do not subside. Perhaps also because in modern cars the manufacturer indicates a threshold or range of octane numbers.

Besides price, what are the main differences between 92 gasoline and 95 gasoline? What kind of gasoline should be poured at a gas station if the use of fuel, for example, with an octane number of at least 92 is allowed? Is it possible to mix brands of gasoline and fill in 92nd if the manufacturer recommends 95th? All these questions are constantly of interest to the car enthusiast community.

Be sure to watch the video at the end of the article, in which the technical characteristics of a car were compared in laboratory conditions, the tank of which was alternately filled with 95 and 92 gasoline.

You may also be interested in our material on which oil is best to pour into a car engine.

Quality, octane number and other characteristics and properties of gasoline

The main characteristics of the gasoline brands used in Russia are given in the table above. The sacred series of numbers 92, 95, 98 denotes what in technology is usually called octane numbers. To put it simply, these are quantitative indicators of the fuel’s resistance to detonation (self-ignition and subsequent explosion) during compression.

The higher the octane number, the higher the detonation threshold, which means the constant use of 92-grade gasoline in engines designed for 95-grade gasoline can lead to undesirable consequences from detonation phenomena (especially when operating at high speeds).

Octane number is the most important characteristic of a gasoline brand for a consumer. But the properties of the fuel are not limited to this and are largely determined by the technology for producing gasoline during the refining of petroleum products.

The fact is that gasoline obtained after direct distillation of oil has a low octane number - no more than 60. Further, various methods can be used to increase the octane number in the technological chain. In Russia, the most common technology is catalytic cracking (another name is hydrocracking), which brings the octane number to 85.

The next stage of increasing the octane number is the use of additives:

1. The first type of additives – metal-containing additives based on lead compounds – was widely used in the last century in the USSR (the final product was leaded gasoline). Such additives worked very effectively, but caused harmful emissions into the environment and for this reason are completely prohibited for use.
2. Additives containing manganese or iron compounds (ferrocenes) have proven to be less hazardous to the environment. But their use is also limited: manganese compounds decompose in light (the consequence is deterioration of resistance to detonation) and ferrocenes (a source of oxides) are one of the causes of soot formation. In addition, ferrocenes contribute to the formation of resins that pollute the engine.
3. Taking into account environmental requirements, additives based on ethers and alcohols are considered the most effective. However, such compounds have a relatively low octane number - 120 (for comparison, in metal-containing additives this figure reaches 280). Therefore, the specific content of such additives in gasoline should be high – up to 15%. The main disadvantage of ether and alcohol additives is their high volatility, which means that the fuel is not intended for long-term storage and must be “fresh”.

Tuning

In this aspect, the engine turned out to be quite interesting, since there are a lot of options for its modifications in garage conditions. The classic planning of the cylinder head by just a millimeter to raise the compression ratio in combination with the removal of the catalyst allows to reduce consumption and also increase its maximum power. You just have to contact specialists to install new software on the control unit. But on such an engine it is already recommended to use 95 gasoline. With such solutions, while driving along the highway at an average speed of 100 kilometers per hour, the engine consumes about 7 liters.

Is it possible to operate an IZH motorcycle on 92 gasoline?

Classic motorcycles are already on their way out. Finding similar motorcycles is now a problem. At the same time, young people who have received similar equipment by inheritance or other means ask whether an IZH motorcycle can be operated on 92 gasoline, without consequences for the piston engine. We will deal with this.

1. Generations of IZH motorcycles
2. What kind of gasoline to pour into an IZH motorcycle?
3. Manufacturer's recommendations
4. What do experts advise?
5. Video
6. Bottom line

Generations of IZH motorcycles

The manufacturer has a range of equipment, different years of manufacture and modifications. At the same time, the bikes were equipped with different engines, separated by the type of fuel consumed.

The manufacturer's assortment includes models such as Jupiter and Planet of various modifications.

What kind of gasoline to pour into an IZH motorcycle?

At domestic gas stations in 2022, it will be problematic to find gasoline grades lower than AI-92. Consequently, it is unknown where drivers of vehicles that consume fuel like AI 80 or 76 should go.

Here we will begin to figure out what to do in such a situation.

Manufacturer's recommendations

Each motor is designed for a specific type of fuel and lubricants. Specifically, you can see what kind of fuel needs to be poured on the inside of the gas tank cap. On Planet 2/3 versions, this is fuel with an octane rating of 73-76. In this case, even eighty gasoline will be perceived incorrectly.

For Planets 4 and 5, the plant recommends using AI-80 gasoline. For the most recent versions, type 92 was also standard.

If the power plant is fed with fuel with a higher octane number, this can lead to consequences.

1. Rapid overheating of the power plant.
2. The appearance of detonation.
3. Violation of the temperature regime of engine operation.
4. Burnout of valves.
5. Damage to the piston group.

What do experts advise?

Experienced motorcyclists advise not to rush to retire the equipment, but to use some tricks.

Even if the equipment is not designed to fill high-octane fuel, you can try adding more oil to the fuel. An abundance of lubricant will stabilize combustion and prevent early ignition. You should also reconfigure the ignition and change the timing to a later trigger.

This approach will prevent the valves from burning out and will protect the power plant from overheating.

In any case, the best solution would be to fill with the cheapest gasoline found at the gas station. You can no longer find the recommended fuel at gas stations, so you need to proceed from the situation.