It is impossible to do without a certain amount of technical knowledge. However, anyone who wants to understand the principle of operation of a car’s heating system should start with simpler and more accessible models, which are considered to be all cars of the VAZ concern. The fact is that the vehicles of this manufacturer are distinguished by a simple exterior, spartan equipment and, most importantly, a very simple and affordable device. A car owner who has a VAZ-2105 at his disposal can do as much as he wants, improving its properties and technical features with every step. In the article below we will consider a method for modifying and modifying the standard stove of a car.
The fastest and most cost-effective upgrade is installing coolers
The standard heater of the VAZ 2105 does not always cope with cold winter weather
Do-it-yourself modification of the VAZ-2105 stove will not require too much labor and money if the car owner decides to modify the standard equipment by installing coolers on the side deflectors. It is worth noting that absolutely everyone should improve the heating equipment of the VAZ-2105, since due to the irrational design, all the air entering the cabin goes down. Thanks to the installation of coolers, which are usually included with PCs, you can adjust the air flow going to the sides. Experts recommend purchasing devices that can make at least 1500 revolutions per minute. Despite the fact that the modification made to the VAZ-2105 stove will not require much expense and time, it will help increase the level of comfort.
Introduction
Tuning the VAZ-2105 stove cannot be done without a certain amount of technical knowledge. However, those who want to understand the principle of operation of the car’s heating system should start with simpler and more accessible models, which are considered to be all cars of the VAZ concern
The fact is that the vehicles of this manufacturer are distinguished by a simple exterior, spartan equipment and, most importantly, a very simple and affordable device. A car owner who has a VAZ-2105 at his disposal can modernize the car as much as he likes, improving its properties and technical features with each step.
In the article below we will consider a method for modifying and modifying the standard stove of a car.
To make the stove heat better...
Many motorists decide to tune the VAZ-2105 heater only because in the cold season, travel becomes uncomfortable, the driver and passengers feel cool, and the heating device cannot heat the interior at a decent level. Modernizing the VAZ-2105 stove helps solve all of the above problems.
It is necessary to replace the resistor to switch speed modes because the volume of incoming air depends on it. At the same time, the switch that controls the rotation of the fan should be replaced. As practice shows, a stationary device is not capable of passing a large air flow, as a result of which it melts and, accordingly, becomes unusable.
Having come across an article on the Internet about modifications to the VAZ 2107 heater, I decided to write a short post.
Get to the point. Even earlier, I came across an article about improving the interior heating of VAZ 2107 - 2105, where the emphasis was placed on significant sealing of all connections in order to avoid loss of air flow. This option will partially give results, but not always.
I want to write about improving the air supply source - the fan. The stove radiator itself is capable of giving off quite a lot of heat, there is simply not enough air flow. To solve this problem, it was decided to use a fan motor. For comparison:
- The standard VAZ stove fan motor of classic models is 3000±150 rpm with a current consumption of 4.5 A.
- On the “chisels” we see the following characteristics - 4100±200 rpm, with a current consumption of 14 A!
As you can see, the current consumption is not childish, but the air flow will be stronger. For maximum effect, a five-blade fan is also used. What was done first? Let's look at the photo:
To begin with, of course, everything was dismantled and dismantled. The comb (1) was cut off and the fan speed control resistor was replaced. Why was this partition cut down? The fact is that when installing an electric motor from a VAZ 2108, a difficulty arises, which is due to the large dimensions of the engine from the “chisels”. And in order to completely close the heating of the feet, it must be removed.
According to the author’s calculations, the result should be almost 2 times more air.
Repair of the stove on a VAZ 2105 car
16.10.2017
A working stove in winter is not only comfort, but also safety. At sub-zero temperatures outside, moisture condenses on the car windows and freezes, covering them with a layer of frost, which significantly impairs visibility.
In classic Zhiguli models, the heater copes well with the task assigned to it. With a working cooling system, the engine heats up in a short time, which directly affects the rate of heating of the interior. The absence of electronic control units simplifies the entire system and makes it more reliable.
The damper and heater tap are controlled mechanically; only the fan is electrically driven.
Diagnostics
If the stove on a VAZ 2105 does not heat well, you need to find out the reason why this is happening. Any manifestation of incorrect operation must first be diagnosed to identify the causes, and then proceed to troubleshooting.
- One of the main reasons may be a low level of coolant in the engine cooling system. And it would seem that it could be easier than checking the fluid level, but not in a Zhiguli. On the “classic”, the level is checked not in the expansion tank, but in the radiator. Moreover, it must be filled completely (up to the filler neck). And it is necessary to check the presence of liquid in the radiator, since due to the special design of the engine compartment, the presence of coolant in the expansion tank does not mean its presence in the rest of the system. And an insufficient amount of fluid entails not only a lack of hot air from the deflectors, but also more serious damage to the engine. Insufficient heat removal from very hot parts can lead to failure of the entire motor.
- The next important element, responsible for quickly reaching the operating temperature and maintaining it throughout the entire operation, is the thermostat, which is responsible for opening and closing the additional cooling circuit. If the thermostat is constantly open, the system cannot warm up to operating temperature, and then the heater will not warm up the interior sufficiently. You can diagnose this unit by touching the pipe after the thermostat and the cylinder block before it. On a cold engine, they should be at different temperatures: the block should be warm, and the pipe after the thermostat should be cool. If the temperature is the same, then the thermostat needs to be replaced.
- A very common problem is a faulty stove faucet. It may sour in one of the positions, or the passage channel may become clogged, which will impede the free passage of liquid through the heater radiator. Or the control drive (cable) may be damaged and not control the crane. You need to climb under the dashboard on the passenger side and, moving the heater switch, watch the movement of the valve. If the crane remains in place when moving the lever, it means that the integrity of the cable has been compromised.
- A closed damper can also cause poor performance of the stove. On a VAZ 2105 car, air is taken only from the street, and when the damper is closed, there is not enough flow to blow the interior, which negatively affects the operation of the heater.
- A clogged heater radiator impairs the free passage of fluid, which negatively affects the heating of the interior. Due to the lack of a cabin filter, the honeycombs become clogged with dirt and dust, which also impairs the performance of the heater. To diagnose the radiator, you need to remove the heater fan and, after warming up the engine, try by touch for uniform heating of the entire surface. If heating is not uniform, it means there is a blockage that is preventing the free passage of flow.
- Also an important factor influencing the operation of the heater is the density of the housing assembly and the density of the radiator in the housing. If the assembly is loose, air will flow through the cracks of the housing rather than through the honeycombs. And no heating will occur.
- A faulty electric motor or damaged blades can cause poor heating of the interior. If the fan does not start when you turn it on, or if you hear extraneous noise when you turn it on, it means that you need to dismantle the fan and carry out further diagnostics on the removed electric motor.
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Repair
After the diagnostics have been completed, you can begin troubleshooting.
- If the coolant level drops, it is necessary to find the location of the leak and eliminate the leak. Then add liquid until the neck is full. Then remove the air plug from the cooling system by pushing through the rubber pipes with the engine running, and add fluid if necessary.
- To replace the thermostat, you need to drain the coolant, unscrew the thermostat cover and replace it with a new one. Then fill in coolant and get rid of the air lock, as described in point No. 1.
- To “break” a soured faucet, you can try to turn it manually (without a cable drive), and if it does not turn, you need to dismantle it and replace it with a new one. To do this, it is not necessary to drain the coolant; it is enough to clamp the pipes before and after the tap.
- You can try to lubricate a soured valve “remotely” by spraying water-repellent grease onto the hinge joint. If this procedure does not bring results, then you need to dismantle the entire heater and “develop” the damper.
- You can clean a clogged radiator by rinsing it with a special liquid or running water. But this will only help clean the inside, and the outside will remain clogged, so to achieve the maximum result from the work done, you need to remove it and wash it both inside and outside. If flushing does not produce results, then you need to replace the radiator with a new one. Before replacing, it is advisable to flush the entire cooling system, otherwise this replacement will have a positive effect in a short time.
- The body is fastened together with iron brackets; it is important that they all stand in place and tightly press the parts of the body to each other. The radiator must be sealed in the housing around the perimeter to prevent flow from passing through the honeycombs. It is better to use foam rubber for compaction.
- After checking the fuse and wiring of the fan, you can begin to dismantle it. Then assess the feasibility of repairing this unit. Before final assembly, you need to connect the motor to the standard wiring and check the functionality on the car. The fan impeller is made of plastic and can be damaged with slight force, so special care must be taken during assembly.
The diagnostic and repair methods outlined above will help you carry out repairs in the shortest possible time with minimal costs. After this, you will enjoy the warmth and comfort in your car for a long time.
Source: https://remam.ru/vozdsys/ploho-greet-pechka-vaz-2105.html
Replacing the electric motor of the heater VAZ 2107 – 2105
The first step is to drill a hole in the impeller, diameter 7 mm. Then carefully press the impeller onto the shaft of the “eighth” engine and, through experiments, achieve minimal vibration and noise. Important! Before installation, you must perform a test run, then proceed with installation.
You may have a question, why change the mode switching resistor? It was replaced after testing, with a standard resistor there is quite a lot of air flow.
It will also be important to replace the heater fan rotation mode switch, since it is not designed for high current and simply melts. It is connected according to the scheme from the VAZ 2108, that is, in the end we get a three-speed fan, which turns on only when the ignition is on.
Unfortunately, our VAZs have plenty of shortcomings, but this does not make us love them less,
