How to replace the VAZ-2114 cooling system:

From the article you will learn in detail about the cooling system VAZ-2114, what elements it consists of, and about possible malfunctions. The internal combustion engine works by the fact that it ignites the fuel (gasoline in this case). In this case, a large amount of heat is released. On cars, as a rule, a liquid cooling system is used, in which water (or antifreeze) by means of the pump moves around the cylinder around the cylinders, the thermostat and radiators. In more detail, you need to consider each component in order to understand the whole essence of the ongoing processes.

Radiators of cooling system

In cars there are two radiators - the main one, which is located in the front part, and the heater, intended for heating in the cabin. At VAZ-2114, the engine cooling system, like on other machines, is connected to the heater. The general scheme of radiators is two plastic tanks, between which are tubes of copper or brass. To improve heat transfer between these tubes are located thin metal plates. Very often, the cause of the high temperature of the engine is the destruction of these plates or the absence of a gap between them.

The scheme of the cooling system VAZ-2114 is such that the radiator is blown by the counterflow of air in the normal mode. If the temperature rises above normal, the electric fan turns on. About it will be told below. During the operation of cars, it is necessary to clean the honeycombs from accumulated dirt. They get insects, dust, heat loss deteriorates, engine cooling becomes less effective. This is especially noticeable when driving on traffic jams.

Thermostat

The scheme of the cooling system VAZ-2114 has two circuits - small and large. In the first case, the liquid is circulated through the engine jacket, the heater, the surplus is discharged into the expansion tank. In the second case, the main heatsink is also connected to this chain. With its help, there is a more intensive cooling. And it makes this thermostat - a small device, which is based on a plate of heat-sensitive metal.

Most often use bimetallic plates, very similar to those that stand in automatic switches. Only one difference is the size is somewhat larger, since this plate acts on the valve. The latter opens the fluid supply channel to the top of the radiator. The higher the temperature, the more the valve opens. This avoids overheating of the engine. If the temperature reaches a critical value, at which the antifreeze even boils, forced air is blown.

Pump (liquid pump)

By car VAZ-2114 engine cooling system is hermetic, with forced circulation. With the help of the pump, water (antifreeze) circulates through the system. The faster it will happen, the sooner the motor will warm up in winter and cool in the summer. In addition, without an additional "jerk", the cooling process can not proceed normally - the liquid will boil near the engine and remain cold in the heater and radiator. The pump forcibly pumps the liquid through the channels and nozzles.

The most frequent damage to the liquid pump is associated with the destruction of the bushing or bearing (depends on the manufacturer of the unit). The service life of the pump does not exceed 90 thousand km, which is equivalent to three years of operation. Approximately the same amount of normally functioning and antifreeze. Further additives start to evaporate. In the VAZ-2114 cooling system, once every three years, fresh antifreeze should be poured, a new pump and nozzles should be installed if their condition does not inspire confidence.

Electric radiator fan

The radiator is installed in the engine compartment, it has three holes. On the top two - for the supply of hot antifreeze and connection with the expansion tank. It is through the latter that a splash of excess liquid occurs during heating. The cooling is improved by means of a fan. It is installed directly on the radiator. The control is performed using the computer and the sensor, which is located in the thermostat housing.

The VAZ-2114 cooling system is characterized by the fact that the sensor is used alone. It gives a signal about the operating temperature. The electronic control unit performs analysis and processing, and then sends the data to the indicator. In addition, it is also responsible for the activation of the fan - when a certain value is reached, the electronic key is closed and the power is supplied to the relay winding. The last closes the power supply circuit of the fan and begins a blowing.

The fan of a heater of salon

It is the same as on the VAZ predecessor models - from 2108 to 21099. The VAZ-2114 (injector) cooling system is almost the same as the one installed on nines with carburetor motors. Installed in the engine compartment, in the middle, next to the fuse block. For replacement, it is necessary to disconnect the wires from the ground and the resistor. Near the right foot of the driver, in the niche of the heater housing, is a small board with a constant resistor. With its help, it is possible to change the rotor speed of the fan rotor in a wide range. Unlike similar elements of cars of the classic series, the fan of the heater on the VAZ-2114 turbine type, so the air flow is much more intense.

Expansion Tank Cap

Quite an interesting design, which also characterizes the cooling system VAZ-2114. With its help it turns out to maintain a certain value of pressure. There are two valves in the plug:

1. Inlet - sucks air from the atmosphere in the case when the pressure is reduced to 0.03 bar.
2. Graduation - opens when the system pressure rises above 1.2 bar.

When the pressure is in the range 0.03-1.2 bar, both valves are closed. If the cover of the tank fails, an increase in the temperature of the engine will be observed, the liquid will tend to break out, so several outcomes are possible. First, the weakest place in the system can collapse. Secondly, the branch pipes and the expansion tank will necessarily inflate. As a consequence - the appearance of cracks and leaks.

Conclusion

Replacement of the VAZ-2114 cooling system is a troublesome task, since absolutely all new components must be installed. But there are also such nodes that can be operated indefinitely. For example, radiators, a stove cock installed in a partition. These nodes quite rarely fail, in contrast to the thermostat or pump. Even antifreeze, and that less serves. But the nozzles of the VAZ-2114 cooling system are the most vulnerable components. Especially two, going to the faucet stove. They are in close proximity to the exhaust manifold and are subject to very strong heating.