Stove VAZ-2107 does not heat well? The device of the stove VAZ-2107. Replacement of the radiator of the VAZ-2107 with its own hands

The system of heating in cars VAZ serves forcreating a comfortable microclimate in the cabin. In summer, heating is not required, so with the help of a special crane, the heater radiator is switched off from the supply system, which comes from the common cooling system. While in the winter season, when the air temperature drops to minus and the heat in the cabin becomes necessary, it is opened. Accordingly, after restoration of the fluid supply, the VAZ 2107 starts to heat. It is located in the cabin and four studs is attached to the partition of the compartment on the engine. The connection point to the body of the machine is sealed with rubber seals.

Why is the cabin cold?

Often motorists about the heater radiatorremember only after the onset of the winter period. Sometimes, however, they are remembered before. For example, when unexpectedly under the feet of the driver appears antifreeze or water. But most car enthusiasts find out about the radiator malfunction when it gets cold and the car does not have enough heat and comfort. And they have no choice but to change the VAZ 2107.

Design

The VAZ 2107 consists of a fan casing,radiator, which has a cover for airflow and its distribution. Cold flows passing through the heater are heated. The radiator is one of the main components, due to which the VAZ 2107 furnace works. It is equipped with nozzles: supply and discharge. They are output to the engine compartment and connected to the engine's cooling system. The holes for their withdrawal can be reliably sealed with a rubber seal.

Principle of operation

The radiator in all VAZ models is fixed by twoself-tapping screws, and the heater tap is built into the supply pipe. It is the flow regulator for the coolant. It can be controlled by means of flexible traction from the lever in the control unit in the ventilation system on the instrument panel. Under the radiator, the VAZ 2107 stove motor is installed. Its electric motor is mounted on two elastic cushions placed in the guiding casing. In the motor supply circuit, an additional resistor is also provided, providing a two-speed mode for rotating the fan, the inclusion of which is provided by a switch having three positions for operation and located on the instrument panel.

The VAZ 2107 oven has air ducts extending fromthe casing of its fan. They direct the flow not only to the deflectors that blow out the side windows, but also to those tubes that are aimed at the windshield. It is possible to control hot air by closing and opening the flaps of the heater alternately. The same cover on the air inlet is regulated by the rods from the levers located on the control unit.

Main disadvantages

Drivers who have been driving for many years"Zhiguli", it is often said that the stove VAZ 2107 sometimes badly warms. The most common cause of malfunctions of such a system as the VAZ 2107 is the radiator flow, as well as the nozzles, the crane and connections located directly between them. To this can be added and failures of the switch for fan modes, damage to the wires of the device or oxidation of their components.

These shortcomings, as a rule, can be corrected,not resorting to the purchase of new parts, but even with more complex faults, serious and drastic measures are needed, for example, replacing the radiator of the VAZ 2107 stove, etc.

Causes of malfunction in the heating system

Sometimes drivers notice the leak in the carantifreeze. The cause of this may be a rusted radiator or stove cock, as well as its metal spout. Exact "diagnostics" can be done only with visual inspection. If the defect lies, for example, in the branch pipe or the furnace stove, they can easily be replaced, especially since today there are no problems with the acquisition of any spare parts. In this case, you can even not disassemble the cover and the instrument panel. If the culprit of the cooling antifreeze leak is the radiator itself, then in this case there are two options for solving this problem. Firstly, if an old copper radiator is installed in the machine, it can be repaired: soak, clean, tin, etc. The main thing is to find a good specialist. The second option is when a VAZ 2107 stove with an aluminum radiator is in the car. In this case, everything is a bit more complicated: it must be replaced with a new one, since it can not be repaired.

In some cases, after switching on the heater from theAir ducts continue to blow out cold air. The reason is the violation of the circulation of the coolant. This is due to the fault of the spoiled crane of the heater or the radiator itself is "blocked". In case the tap is jammed, it needs to be replaced, but in the second case, thorough cleaning is necessary.

Modernization of the heater

All motorists know that the device of the VAZ stove2107 is imperfect, at the same time it works with a noisy noise even in the cabin. Therefore this part of the heating system of motor vehicles is very often subjected to modernization. Many try to improve the work of the stove on their own, however, most often this does not work properly. With your hands, even knowing how to remove the VAZ 2107, you can only compact the joints of air ducts and nozzles, as well as redistribute hot streams. However, the temperature in the passenger compartment remains basically the same. And that in the car in the winter cold it was warm and cozy, it is necessary to increase the amount of heat supplied by the radiator. The whole problem lies in the fan of the stove, which is too small and does not create the necessary airflow. In this regard, as a rule, first of all, it is necessary to replace the fan of the VAZ 2107.

If we compare the operation of this mechanism in twomodels of cars "Lada", it can be seen that the engine of the stove of the seventh model of the "Lada" during rotation with a frequency of about three thousand revolutions per minute uses about four and a half amperes of current. And on the fan of the "eight" with four thousand and more revolutions is spent three and a half times more. That is why modernization is needed. Sometimes even a replacement of the radiator of the VAZ 2107 is required.

How to modify the heater

In the event that the VAZ 2107 stove does not warm well,the cover is removed in the cabin on the bottom of the stove, on which the fan is fixed on top. The latter is completely removed because of its uselessness. After that, one of the aerodynamic ridges that gently warms towards the feet of the driver and the passenger sitting next to him is neatly cut off. This is especially true when installing a fan with VAZ 2108, because its motor is slightly longer. The impeller can be completely removed, and its functions can be transferred to a five-bladed standard fan.

The hole for this diameter is insignificantIt increases so that a new shaft can be installed in it. It is important to ensure that the updated design is "planted" in place tightly and reliably. Just before installing a new fan, it must be connected directly to make sure it is working.

For noiselessness

To this end, the built-inresistor, the main task of which is to ensure a relatively quiet operation for the fan. Especially since the new one - with the VAZ 2108 - due to the larger amount of the overtaken airflow generates a strong noise. The best replacement is a resistor, which is installed on the same eighth model. In addition, when upgrading, it is not superfluous to replace the fan switch by installing the model from the same vehicle as the whole design, for example, from 2108. This is done because the VAZ 2107 is heated up during prolonged operation, and after a certain time standard on buttons simply melt. The noise from the modernized and updated device, of course, will be a bit more factory, but this defect in the colder winter time after the modification of the heater is almost invisible.

Care for the radiator stove VAZ 2107

During the autumn and summer periods of operationcars in their radiators heaters accumulate a lot of scale. And as a result, the efficiency of the system is reduced. However, this fault can be eliminated. It's enough just to know how to disassemble the VAZ 2107 stove to clean it. This simple repair process can be made independently. For this, the car enthusiast will need two worm clamps, two new rubber gaskets, several spanners, coolant and a vessel in which the spent substance will be collected.

Operating procedure

The first thing you need to turn off the engine and give itcool down. Under all nipples need to put a cloth or rags. After this, loosen the clamps on the fasteners of both output and inlet hoses, through which the cooling liquid enters the engine compartment. Then remove the rubber connecting from the tap and the nozzles, while under them it is necessary to substitute the container. Using the end key of the seventh number, it is necessary to unscrew the screws of the fasteners on the seal, which must be removed afterwards. At the same time, the drive rod is also disconnected from the furnace faucet with the fan cowl. Nipples on the radiator are removed from the hole located in the partition of the engine compartment. For this purpose, the bolts of the fasteners are turned off with the spanner of the tenth number. After that, the outlet pipe and the radiator are removed. Replaced with a new one, the rubber gasket seals the connection point of the flanges. In this case, it is necessary after the removal of the faucet to clean the hoses with hoses and the tap itself.

Replacing the radiator

In general, when the VAZ 2107 does not work,it is necessary to change the radiator. Troubleshooting in the heating system on the Zhiguli models is not too different from each other. If the driver was able to figure out the reason for the cold in the cabin and he has nothing else to do but change the radiator, then he will need some tools for this. You will need two types of screwdrivers - ordinary and cross, end and carve keys of the seventh, eighth and tenth numbers, as well as three rubber gaskets, one liter of coolant and sealant, usually silicone. It is necessary to carefully inspect the radiator, its metal pipes and the furnace faucet. All of them should be without visible traces of corrosion or leakage. A tap of a stove with a tube from an old radiator can be twisted to a new radiator. It is necessary to install rubber gaskets by removing old ones. Having smeared them with silicone sealant, it is necessary densely not to crush them or accidentally tear the threads, screw the branch pipe and the crane to the radiator.

Assembly after replacing the old radiator with a new oneis performed in reverse sequence disassembly. Then, if necessary, the antifreeze is added to it. Then the car starts, after which the tightness of the connection of the nozzles and hoses is checked.