The great invention of the 17th century is still the basis of any modern car. Aren't the driving characteristics of an iron horse, fuel consumption and power the main source of pride for a motorist? And in this regard, the 16 valve engine of the VAZ 2110 pleases with truly excellent technical indicators. However, everywhere there is a “but” that is worth mentioning.
Despite the fact that the 16-valve system is today the most popular not only for VAZ 2110-2112 cars, but also for the automotive industry in general, everything has its downside. Ignorance of the operating features of internal combustion engines can cause unreasonably expensive repairs and unexpected failure of the machine at the most inopportune moment. It’s really worth talking about how to avoid such an unpleasant situation.
Engine VAZ 2110 16 valve
Or maybe you’re just wondering what the rhythmic growl under the hood of your VAZ 2110 (2112) can tell you. For many people, buying a car is a significant investment for the rest of their lives. The ability to understand your iron friend is worth a lot, because you have to travel considerable distances with him on your life’s journey. And in life, as you know, anything can happen. And everyone needs to be prepared for this.
Of course, it is difficult to cover such a broad topic in one article. Therefore, it is very important to convey to motorists the most key details regarding the operation of their specific engine and the main differences between the internal combustion engines for VAZ-2110 (2112) cars. If you want to know really useful things regarding the operation of your car, then don’t stop reading, it will only get more interesting.
Advantages of a sixteen-valve engine
We have already said that the internal combustion engines of the VAZ-2110 (2112) family discussed in the article are distinguished by greater power, lower fuel consumption, and also high technical characteristics, unlike the V8s. It's time to find out what design features make the VAZ 2112 16 valve engine such an attractive choice for motorists.
Let’s immediately make a reservation about exactly what “advantages” will be discussed in this section of the article:
- fuel economy;
- higher power;
- detonation resistance;
- advanced cooling system;
- simple tuning due to the separation of the intake and exhaust tracts.
It is the separation between the intake and exhaust tracts in the design of the VAZ-21120 and 21124 engines that makes it possible to achieve quite noticeable fuel savings. Thus, the supply of fuel and the intake of exhaust gases is carried out by a separate spaced valve system, due to which there is no unwanted mixing of fuel and combustion products. It is also obvious that this increases the efficiency of the engine and its power.
Sixteen-valve VAZ 2110 engine
The innovations did not ignore the combustion chamber, as well as the structure of the cylinder block. Their design is slightly modified in such a way that the risk of detonation of the fuel mixture is minimized. This is truly a significant advantage, because the quality of gasoline in our gas stations leaves much to be desired. Accordingly, this kind of internal combustion engine design remains a guarantee of its long service life.
The operation of the cooling system of such devices is also pleasing with high stability. This is the most important factor ensuring long engine operation and reliability during its operation. Effective heat removal allows the internal combustion engine to operate at a given temperature, preventing premature wear. Are the benefits of 16 valves significant enough for you? But that is not all.
Gas distribution system
Replacing the camshaft drive belt, in principle, differed little from the eight-valve version. The only difference was that there were two camshafts and it was necessary to combine not two, but three marks. All of them are shown in the diagram above.
Another problem with this engine was frequent valve bending. If you bothered to replace the belt, the owner had to pay, at best, for a set of valves and new pistons. Apart from completely disassembling the engine. And not only a broken belt, but weak tension and turning the pulley by several teeth could also lead to problems with the gas distribution mechanism.
The VAZ 2110, in principle, could have become one of the most modern cars if it had left the assembly line on time. An on-board computer, a simple but functional one, a decently functioning clutch, a new steering rack that appeared along with power steering - all this could have made the car even more popular if innovations had been applied in a timely manner, and not in pursuit of an already outdated model.
There are no bad cars, never have been and never will be. The Ten simply became a victim of its time, but it showed many what a modern and cheap car should be.
Tuning of the internal combustion engine cylinder block, conversion of the 8 valve VAZ-2110 (2112) engine to 16 valve.
Tell me, after reading all the above-mentioned information, are you not inspired by the idea of having a car with 16 internal combustion engine valves? In this case, you will be pleased to know that this kind of modernization is allowed. Of course, this process is thorough and cannot be completed without careful preparation. But the result will really justify itself. If you have any doubts, just read the next few paragraphs of the text.
Without going into technical details, the essence of tuning is to replace the cylinder head with a new one. Of course, now you will have two camshafts, and you will also have to rack your brains over the fastening system, because the diameters of the holes in the 16 valve head do not correspond to those on the 8 valve head.
The mounting holes of the block head should be drilled, increasing the diameter from 10 to 12 millimeters.
You can do this yourself, but it is better to contact a specialized workshop. For this kind of work they should not charge more than 3-4 hundred rubles. It should also be taken into account that the standard mounting bolt for the 16-valve cylinder block is slightly smaller than that for the “eight” and must be shortened accordingly.
It is better to study in advance what a 16-valve engine is like on a VAZ 2110 and then you will certainly be able to carry out this kind of tuning yourself. It will be necessary to change the timing belt, pump pump, rollers, wiring, spark plugs, connecting rod mechanism and other structural elements due to the peculiarity of the cylinder head. The head is assembled separately before installation on the engine. After completing the work, it is also advisable to use specialized services for setting up and calibrating the operation of the internal combustion engine.
Specifications
| Manufacturer | Concern "AvtoVAZ" |
| Engine volume, cm³ | 1499 |
| Power, l. With | 93 |
| Torque, Nm | 133 |
| Compression ratio | 10.5 |
| Cylinder block | cast iron |
| Number of cylinders | 4 |
| Fuel injection order | 1-3-4-2 |
| cylinder head | aluminum |
| Cylinder diameter, mm | 82 |
| Piston stroke, mm | 71 |
| Number of valves per cylinder | 4 (DOHC) |
| Timing drive | belt |
| Hydraulic compensators | There is |
| Turbocharging | No |
| Valve timing regulator | No |
| Fuel supply system | injector |
| Fuel | gasoline AI-95 |
| Environmental standards | Euro 3 |
| Resource, thousand km | 150 |
| Location | transverse |
| Engine weight, kg | 120 |
Service
Maintenance typical for cars produced by AvtoVAZ. The main maintenance operations are changing the oil and oil filter. To change the lubricant, 3.2 liters of engine oil is required. In turn, 3.5 liters of lubricant fits into the engine.
It is recommended to fill in semi-synthetic motor oils marked 5W-30, 5W-40, 10W-40, 15W40.
The maintenance map looks like this:
TO-1: Oil change, oil filter replacement. Carry out after the first 1000-1500 km. This stage is also called the break-in stage, since the engine elements are grinding in.
TO-2: The second maintenance is carried out after 10,000 km. So, the engine oil and filter are changed again, as well as the air filter element. At this stage, the pressure on the engine is also measured and the valves are adjusted.
TO-3: At this stage, which is performed after 20,000 km, the standard procedure for changing the oil, replacing the fuel filter, as well as diagnosing all engine systems is carried out.
TO-4: The fourth maintenance is perhaps the simplest. After 30,000 km, only the oil and oil filter element are changed.
TO-5: The fifth maintenance is like a second wind for the engine. This time a lot of things are changing. So, let's look at which elements need to be replaced in the fifth maintenance:
- Change of oil.
- Replacing the oil filter.
- Replacing the air filter.
- Replacing the fuel filter element.
- The timing belt and roller are replaced.
- Alternator belt if necessary.
- Water pump.
- Valve cover gasket.
- Other items that need to be replaced.
- Valve adjustment, which adjusts the gas distribution mechanism.
Subsequent maintenance is carried out according to the 2-5 maintenance map for the corresponding mileage.
Reliability
Despite complaints from some car owners, the internal combustion engine of the VAZ-2112 can be confidently called a reliable power unit. The whole problem of reliability lies in the attitude towards it on the part of the car enthusiast himself.
With timely and high-quality maintenance and compliance with all manufacturer’s recommendations, the engine practically does not cause any complaints. With this attitude, the engine resource increases significantly.
The only direct defect of the manufacturer of this motor is the possibility, or rather the guarantee, of the valves bending when the belt breaks. But, with a careful, caring attitude towards the engine, this problem can be reduced to an absolute minimum. It is enough to replace the belt not after 50-60 thousand km, as the manufacturer recommends, but much earlier. For example, after 30-40 thousand km. Financial costs will be much less than when repairing the cylinder head.
Specifications
| Manufacturer | Concern "AvtoVAZ" |
| Engine volume, cm³ | 1499 |
| Power, l. With | 93 |
| Torque, Nm | 128 |
| Compression ratio | 10.5 |
| Cylinder block | cast iron |
| Number of cylinders | 4 |
| Fuel injection order | 1-3-4-2 |
| cylinder head | aluminum |
| Cylinder diameter, mm | 82 |
| Piston stroke, mm | 71 |
| Number of valves per cylinder | 4 (DOHC) |
| Timing drive | belt |
| Hydraulic compensators | There is |
| Turbocharging | No |
| Fuel supply system | injector |
| Fuel | gasoline AI-95 |
| Environmental standards | Euro 3 |
| Resource, thousand km | 150 |
| Location | transverse |
| Engine weight, kg | 1030-1070 |
Common problems of internal combustion engine 21124
The idle speed most often fluctuates due to a dirty throttle. Another reason can be glitches of the mass air flow sensor, crankshaft and throttle position sensors, as well as IAC.
The culprits of engine trouble are usually clogged injectors, faulty ignition coils or spark plugs. This happens a little less often due to burnout of the valves.
Various types of noise from under the hood are usually caused by worn hydraulic compensators or a stretched timing belt. However, this may also very well be a sign of critical wear of the ShPG. In this case, professional diagnosis is required.
Piston
On pistons 2112, the wells for the valves have a depth of 5.53 mm, which made it possible to make the engine “stick-free” in the event of a timing belt break.
| Parameter | Meaning |
| Diameter, mm | 82,0 |
| Compression height, mm | 37,9 |
| Volume of internal recess, ss | 2,46 |
| Weight, g | 355 |
The piston pins are the same as on the 2112 engine (from the 2110 engine).
Maintainability
The VAZ-21120 impresses with its simplicity of design and high maintainability. There are no problems finding spare parts. They can be easily found in any specialty store. The only “underwater reef” when purchasing the necessary parts is the high possibility of running into a fake. The Chinese manufacturer is especially famous for counterfeit spare parts.
The cast iron cylinder block allows for major repairs of any complexity. At the same time, you can restore the engine in a garage. Car service centers are also happy to take on repair work.
In general, the internal combustion engine of the VAZ-21120 was not entirely successful, but the ease of maintenance and repair largely compensates for this shortcoming. It is important to remember that the service life of the latter depends on the attitude of the car owner towards the engine.
Source of the article: https://motorist.expert/vaz/vaz-21120.html
Motor VAZ 2106
The baton of the engine, which became a real breakthrough in the Soviet market, was taken over by the VAZ 2106 engine.
It became a natural modification of the 2103 in order to increase 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 it, like the donor, had two repair sizes. These VAZ engines had no other fundamental differences from the 2103, since they were equipped in the same way as their older relatives, with an “Ozone” carburetor and an ignition distributor with the same vacuum regulator.
But the 2106 engine did not find much sympathy among the owners, just as rotary engines on VAZs were once exported, since the owners of 2103, 2121, 2107 tried to select the more reliable VAZ 2103 engine.
This was due to the lower viability of the 2106 and instability of operation when using lower quality fuel. The saddest outcome was burnout of the valves and the unit required major repairs in these cases much more often than 2103.
Some conclusions
The steel receiver looks powerful and beautiful
All VAZ-2112 hatchback engines differ in characteristics, and the differences are significant. It seems that the best option would be a 16-valve 1.5-liter engine. But the 21124 (1.6) engine has its advantages:
- Rated power is achieved at 5000 rpm rather than 5600;
- A broken timing belt does not lead to bending of the valves and their replacement;
- It is acceptable to use 92nd gasoline.
Any 21124 engine can be converted to Euro-4 or meets these standards immediately.
The appearance of the 1.5 liter engine inspires respect. But if you remember about bending the valves, the choice becomes difficult to make. A steel receiver and a beautiful schedule are not everything.
