How to check the thermostat on a VAZ 2115, 2114, 2113, 2109 with PHOTO!

The operating principle of the VAZ 2115, 2114, 2113, 2109 thermostat.

What does a thermostat consist of? Let's get a look!

The thermostat consists of a housing, a bypass valve, a main valve, a temperature sensing element (usually located near the main valve) and a spring.

How does the thermostat work on VAZ 2115, 2114, 2113, 2109.

When the car is not warmed up, the thermostat valve is closed, as in the photo. In this case, the coolant moves in a small circle, as in the photo below.

When the machine warms up to operating temperature (87-90 degrees), the temperature-sensitive element slowly begins to heat up, as a result of which the spring compresses, the main valve opens and the liquid flows in a large circle.

Thermostats for VAZ (Lada) 2113/2114/2115

for repair of VAZ (Lada) 2113/2114/2115

The advantages of such a thermostat are that the engine warms up faster, and the operating temperature, as expected, dropped to 87-90 degrees, the old thermostat was kept at around 93-95, and since in the summer I set the thermostat switching temperature to 95 degrees, The cooling fan was almost always running. in a traffic jam or at a traffic light, the coolant temperature rises much more quietly than with the factory thermostat. The stove begins to heat better and replacing the thermoelement becomes much easier, just unscrew two bolts and the element in your hands, rather than having to remove a bunch of pipes.

Changing the thermostat on a VAZ 2114 with your own hands

As long as the car is working properly, the car owner does not think about what is happening under the hood. But at some point, the car engine suddenly begins to overheat for no apparent reason. Most often this means that the thermostat has failed. We will talk about what this device is and how to replace it on a VAZ-2114 car in this article.

Installing a thermostat from Grants for VAZ 2114

At low temperatures, the original thermostat cannot always cope with warming up the interior.
The cooling system of front-wheel drive versions of cars was not modernized for a long time, and they started working on it after the production of the Samara generation. In such cases, installing a Granta thermostat helps, but how? If we look at the connection diagram for the heater radiator in a VAZ 2114, we can see that in a small circle no coolant passes through it. This means that while the engine is warming up, the car interior does not heat up until the element switches to full circuit operation. When installing a thermostat from Granta, we connect the heater radiator in series, not in parallel, and the interior will begin to receive heat evenly as the engine heats up. In addition, heat removal from the motor increases, which reduces the risk of boiling. You can learn more about the process of installing a thermostat in this video: Don’t worry when you are faced with the question of how to replace the thermostat on a VAZ 2114 (8 valves). In this case, you can repair the car yourself, without contacting specialized services. Maintenance takes place in a couple of hours and without much labor, excluding draining the liquid, since the process is not the cleanest. When choosing a replacement part, purchase an original spare part if you have doubts about analog brands. And don’t save money, since the cooling system is an important part in the operation of a car engine. When it fails, there is a chance of the engine overheating, and the saved 300-400 rubles can turn into a major engine overhaul costing 10,000 rubles and more.

Thermostat operating principle

The main purpose of the device is to slow down the flow of coolant into the internal combustion engine. By blocking the coolant flow, the engine warms up to operating temperature. As soon as the temperature mark reaches the operating norm, the VAZ 2114 thermostat opens.

On the side that is closer to the internal combustion engine, there is a special wax ball. The waxy material was chosen for a reason, because when heated it transforms from a solid into a liquid. And as soon as the wax begins to transform at a temperature above 83 degrees, it pushes out the pin, which is located in the cylinder. At this time, the valve opens and coolant begins to flow.

Functions and operating principle

It is extremely important for a car to remove excess heat that accumulates in the engine. This is what coolant is primarily designed for.

To reduce this very temperature, the cooling system of the “fourteenth” VAZ model includes a thermostat and an electric cooling radiator fan .

Device diagram

The valve, which is responsible for the flow of coolant, is located inside the housing. It, in turn, has three pipes:

• Input – goes to the pump;
• Two outputs - from the radiator and the engine.

What is the best thermostat for VAZ 2114? How to change it yourself (video)

The thermostat plays an important role in the functioning of the cooling system of the power unit of any car. Sometimes it may be necessary to replace him, having served his purpose and requires a replacement in his position.

Thermostat

In general, the cooling system consists of several components that have a direct impact on efficient operation:

• Pump. It is responsible for pumping coolant through the working circuit;
• Cooling radiator. It is equipped with an electric fan. This pair allows you to cool the coolant, which had previously heated up in the engine blocks, to the required temperature;
• Radiator. With its help, the interior is heated. To do this, the unit uses the energy of a heated cooler;
• Expansion tank;
• Thermostat.

Types of thermostats for VAZ 2114

When replacing a thermostat, car owners ask themselves which thermostat in the VAZ 2114 is better to install: imported or domestic; and which company should you prefer? No one can tell you the absolutely right choice, because every driver pays attention to many factors when choosing spare parts. It all depends on availability, price and other important features.

There are several groups of suitable thermostats that can be found in regular car stores:

• Domestic. Branded thermostats for the VAZ 2114, which will be easy to find on sale. But they do not shine in terms of quality, since they can fail before the guaranteed period or they can even jam and the engine overheats. It is not recommended to replace a thermostat from this manufacturer.

• Chinese. They usually have an attractive exterior, but the inside is much worse than it might seem. During operation, they will perform noticeably worse than domestic thermostats. This option is the most extreme, that is, you will have to take them when nothing else can be found.

• Imported. They are of the highest quality, unlike other manufacturers. Even with this design, the price corresponds to the quality and at the same time they are in greater demand than others. Accordingly, it is recommended to take this thermostat!

Let's consider an imported thermostat for a VAZ 2114 6 hole

Advantages of this particular device:

1. this thermostat provides a temperature that is normal for the coolant;
2. fewer ligaments on the clamps than on other devices. The standard thermostat is attached to the outlet pipe through a ductile connecting tube;
3. this thermostat is initially dismountable for replacing the temperature-sensitive element separately from the body;
4. more compact, thus more free space.

The stove already heats at 60 degrees, and at 85 degrees it becomes hot.

There are situations when you cannot find branded thermostats, then you should pay attention to the case material. Based on the composition, you need to take thermostats made of high-quality brass and stainless steel. Their difference can be determined by weight, simply by holding them in your hands.

Be careful when choosing other thermostats. They may be made of zinc alloy, which may not be reliable. Not only can they leak from an impact, but temperature changes also affect them.

What kind of thermostat VAZ-2114

The efficiency of the stove and other parameters that affect the operation of the entire engine depend on the engine temperature. The temperature depends on the thermostat. A thermostat is a device that directs coolant through a large or small cooling circle.

1. What is a thermostat?
2. Engine cooling system diagram.
3. Types of thermostats for VAZ.
4. Injection thermostats.
5. Which thermostat is better for VAZ 2114?
6. Video.

Thermostat

A thermostat is a device that regulates temperature. Essentially, it is a shut-off and control device that opens, closes and changes the direction of flow of coolant. There are two cooling circuits in a car engine cooling system: large and small. The large circle is the circulation of fluid through the main radiator, and the small circle is the circulation of fluid bypassing the radiator.

The operation of the thermostat is regulated by a valve, which, depending on the temperature, opens one pipe and closes the second.

Engine cooling system operation diagram

The design of the VAZ thermostat has three pipes: one for receiving coolant, two more for discharging coolant.

Types of thermostats

Externally, if you take the thermostats of the Niva and VAZ 2101 (kopecks), the differences will not be visible. They have differences inside, the pipes are located differently.

Types of VAZ thermostats:

• Thermostat 2101. The valve began to block when it reached 80 degrees, and fully opened when it reached 95 degrees.
• Almost the same ones are installed on the VAZ Niva, only the angle between the pipes is about 180 degrees.
• The VAZ 2108 thermostat is installed on all VAZ models with carburetor engines of various modifications. The thermostat valves of front-wheel drive VAZs operate 7 degrees later than those of classic models.
• The thermostat of the VAZ 2110 is the same as the classic one, but the pipes are located in a mirror image. There is no small pipe for air outlet.
• The VAZ 2112 thermostat is made for VAZ injection engines. The valve opens when the temperature reaches 85 degrees.

Injection thermostats

In such thermostats, a throttle is installed in the inlet pipe. In new modifications of injection thermostats, 4 throttles are installed. Suitable for many models of vases, starting from 2114, Granta, Kalina, etc.

Ween thermostat

On the bottom of the thermostat it is indicated which models the device is suitable for and the operating temperature conditions.

The thermostat service life in practice is 150,000 km. How much do VAZ thermostats cost? Yes, in different ways, mostly the price is up to 500 rubles. Ween is made in Poland.

Luzar thermostats

There are some negative and some positive reviews about Luzar thermostats. They write that after 5000 km it may leak. Manufacture: China.

Video

This video contains useful information on how to check thermostats for quality.

How to check the thermostat yourself.

Thermostats for VAZ 2101-2107.

We choose which thermostat is better to install on the injection 8 valve VAZ-2114

The engine temperature affects not only the temperature of the heater, and this, unfortunately, is what worries the owners of Togliatti cars primarily. This does not speak of their shortsightedness, but of the imperfection of the heater, but today we are not talking about it. The temperature regime of the engine depends on one simple but very important device called a thermostat . When we learn more about the modifications of VAZ devices, the question of which thermostat is better to install on the injection VAZ-2114 will automatically disappear.

SIGNS OF PROBLEM

The fact that the thermostat is not working becomes clear from the rising coolant temperature.

If the engine suddenly starts to boil, you cannot turn it off. It is necessary to run the antifreeze through the “stove” for better cooling and leave the engine running at idle speed. This will allow you to slightly reduce the temperature of the antifreeze after some time.

It is also bad when the valve does not close. The engine is not warmed up, consumes more fuel, and does not develop full power. Some sources recommend checking the serviceability of the device by touch. When the valve is closed, the lower part of the body should be colder than the upper part, and when open it will be hot.

This method cannot be considered ideal, since when the antifreeze temperature is more than 1000C, the thermostat body warms up completely and will be hot to the touch. If the antifreeze is boiling, but its level is normal and there are no leaks, the thermostat needs to be replaced.

Purpose, design and principle of operation of the thermostat

The coolant circulating through the working channels of the engine blocks, its main purpose is to remove excess heat accumulated in the power unit due to the friction of the working elements of the engine and the impact of the high temperature of the exhaust gases passing through the exhaust circuit.

The main elements of the cooling system of the VAZ 2114, which are responsible for lowering the temperature of the antifreeze, are the electric cooling radiator fan and the thermostat.

To understand the principle of its operation, you need to see what the thermostat on a VAZ 2114 looks like. Structurally, it is designed in such a way that the valve that regulates the coolant flow is located inside a housing with three pipes:

• two inputs - from the engine and radiator;
• one day off - to the pump.

The main working element of the valve itself, located inside the thermostat, is a solid heat-sensitive filler, which, when heated, through a rubber insert, acts on the piston that moves the main valve. When it heats up, it opens it, when it cools down, on the contrary, it closes the hole, preventing the flow of antifreeze.

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The thermostat is attached to the engine through a pipe to the cylinder head on the left side, under the air filter. It is connected to the radiator and pump using rubber pipes. On a cold engine, the valve of this coolant flow regulator is closed and after starting, the liquid that begins to be pumped by the pump forces moves along a “small circuit” or “in a small circle.” Both of these expressions are used among motorists. When moving in a small circle, the antifreeze passes through the heater radiator, intake manifold and throttle assembly. Liquid is not supplied to the radiator; the valve cuts off this path.

As the engine heats up, the coolant takes away some of the heat, heats up and, passing in a “small circle” through the thermostat, heats the temperature-sensitive element. The piston begins to move and open the main valve. This begins to happen when the liquid temperature reaches 87 degrees. In this case, part of the coolant begins to circulate through the radiator. When the temperature reaches 102 degrees, the valve opens completely, moving eight millimeters. In this mode, the entire coolant flow rushes in a “large circle” through the cooling radiator.

Experts recommend checking the operation of the thermostat without removing it from the car. To do this, after starting the engine, you need to touch the lower pipes coming from the radiator with your hands. They should be cold until the temperature rises above eighty degrees. As soon as the temperature rises above 85 degrees, the tubes should begin to heat up and after a while you can feel that the “large circle” circulation is working. The tubes should get quite hot.

If the lower pipes leaving the radiator continue to remain cold, it means the main valve has not opened and the thermostat is faulty. A malfunction of this regulator may also be indicated by the fact that the lower tubes begin to heat up almost immediately after starting the engine. This indicates that the valve is open and does not close when cold.

In both cases, a thermostat failure does not bring anything good for the engine. In the case when the valve is open, the antifreeze, passing in a “large circle,” does not have the opportunity to heat up to working condition. This reduces engine power and other performance parameters. In the case when the main valve is closed, the engine has a high risk of overheating the blocks. This is the most dangerous condition for the power unit. If you drive in this mode for some, even not very long, time, you can damage the engine, even to the point of breaking the shafts. And this, at a minimum, is a major overhaul of the entire internal combustion engine.

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There is a different way to check the thermostat on a VAZ 2114. To do this, you need to pour water into a pan and, placing it on the stove to heat, immerse the thermostat there. Knowing at what temperature the thermostat on the VAZ 2114 opens, use a thermometer to monitor the heating of the water in the pan. At about 87 degrees the valve should open. If this happens, then the device is fully operational. It is better to check it in this way before installing it in place of a failed one.

Many car enthusiasts often ask specialists whether it is possible to repair the thermostat.

There is only one fairly reliable way to help the valve work. To do this, lightly hit the device body with a screwdriver several times. The impact should open the valve.

If this does not happen, then the thermostat on the VAZ 2114 needs to be replaced.

How to replace a thermostat

• On a cold engine, open the neck of the radiator and expansion tank, unscrew the plug on the cylinder block, and drain all the antifreeze.
• We unscrew the clamps, remove the device and replace it with a new one;
• Taking this opportunity, we wash the cooling system with a special wash, preferably a branded one, with orthophosphoric acid and fill it with fresh antifreeze.

After this, you need to check the operation of the thermostat. Thus, replacing the device is an easy operation that can save a lot of money if you take into account the possibility of the engine jamming.

The vehicle's thermostat is used to maintain the engine operating temperature within specified limits. A faulty device must be replaced, since operating the machine with it can lead to overheating of the engine or a decrease in its service life.

Where is? How to replace a thermostat

Before replacing the thermostat, you must clear access to it. For VAZ 2114 1.5 and 1.6 on 8-valve engines, the process may be slightly different, but generally identical. After the functionality test has been carried out, we proceed to dismantling.

First of all, to get to the device we need to remove the air filter housing. To do this, unscrew the bolts, loosen the clamps and remove the chip from the MAF sensor.

The difference between the 1.5 engine is that when removing it there is no need for a wrench; on 1.6 engines there are fasteners that can only be unscrewed using a hexagon.

After this, prepare a container for the coolant and drain it. If the car is equipped with engine protection, then it must also be removed.

At the bottom of the radiator there is a special tap that allows you to drain the coolant. We place a container under it and unscrew it, waiting for the coolant to completely drain. In order for it to flow out faster, unscrew the cap on the expansion tank.

After the liquid has drained, the air filter housing has been removed, and the pipes have been disconnected, you can remove the thermostat.

Replacement of the device is carried out in the reverse order. Before installing a new device, it is necessary to clean the seat and thoroughly coat it with sealant.

After the thermostat is installed on the VAZ 2114 injector, we fix the pipes in the reverse order.

Where is the thermostat located on the VAZ 2113

On injection models of the VAZ 2113, the thermostat is located under the air filter housing; on carburetor models it is located in the same place, but the housing is moved to a slightly different place, so on the carburetor you don’t need to bother and remove the housing, but simply throw off the high-voltage wires and get to work. In any case, do not be alarmed, the housing can be removed quickly and easily, read the article: “Replacing the air filter housing on VAZ cars.” After removing the housing, you will see the thermostat with the naked eye (indicated by a red arrow in the photo below), and next to it there is a battery (indicated by a blue arrow). We hope we have clearly explained the location of the thermostat and you can easily find it.

Which thermostat is better to install on a VAZ

When replacing a thermostat, the question arises which one is best to choose. It all depends on the purpose of the purchase, as well as the service life.

Some of the most popular models are Gates and Vernet. They have proven themselves to be one of the best for a budget price. For the fourteenth VAZ for that kind of money it is a good option. The cost varies from 300 to 500 rubles.

Chinese analogues are devices that do not last long. They are usually bought by inexperienced drivers, or in case of a sudden breakdown in order to drive for a while and replace with a better model. They are practically the same in cost, the price range is from 350 to 450 rubles, but they are noticeably inferior in quality and you have to change them 2 times more often.

Original thermostats on VAZs are very unreliable, although there is an opinion that original parts last longer. But not for the fourteenth models; experienced drivers, if they have an original device, decide to replace it even before it breaks down, because they know that it will not last long.

Replacing the thermostat VAZ 2113 – step-by-step instructions + photo report

In order to replace the thermostat on a VAZ 2113, you must perform the following procedure:

1. The first step is to drain the coolant.
2. Removing the air filter

3. Loosen the 4 clamps securing the thermostat hoses.
4. Disconnect the hoses from the thermostat pipes and remove the thermostat.
5. To check the operation of the thermostat, place it in almost boiling water. In water, the main thermostat valve should open.

6. Reinstall the thermostat in reverse order. After installation, check the connections for leaks.

Well, all the work on replacing the thermostat on the VAZ 2113 has been completed. We recommend that you watch a video on the topic.

How to check the thermostat on a VAZ 2113 - two ways

In order to check the thermostat on a VAZ 2113, you must perform the following steps:

1. Take a pan with cold water, a thermometer up to at least one hundred degrees and a thermostat.
2. We put it all on the tile to warm up and wait... We wait until the water temperature reaches 85 degrees.

3. At this point we begin to look at the main thermostat valve. At 87 degrees it should open.
4. If it does not open or opened earlier, then the thermostat is faulty.

There is another way to check the thermostat without removing it from the car. But for this, the car must be cold:

1. After starting the engine, grab the lower pipe coming from the radiator with your hands.
2. Until the temperature reaches 80 degrees it should be completely cold. When it reaches 85 degrees, the tube should begin to warm up slowly.
3. And when 90 degrees is reached, full circulation of hot coolant should begin (i.e. the valve is completely open). The lower tube should be hot.

It happens that immediately after starting the engine, when it has warmed up only 50 degrees, warm liquid begins to flow through the lower tube. This shouldn't happen either!!! This means that the valve is constantly open.

Checking a new thermostat before installation

Before replacing the VAZ-2114 thermostat, you need to check the functionality of the new one. The check is performed in the following order:

1. Fill the container with water and place the device in it.
2. Place the dish with the appliance on the stove and heat it, controlling the heating temperature.

We heat the water with the device, controlling the temperature

Injection thermostat VAZ 2114 8 class: choosing the best and replacing it yourself

The reliability of any injection engine primarily depends on its design. Nevertheless, VAZ 2114 injection engines with 8 valves often suffer from non-compliance with the temperature conditions of the engine. The thermostat is exactly the device that should ensure that the engine warms up evenly and does not overheat under high loads. How to choose the right thermostat for the VAZ 2114, which one is better not to install, how to replace it, we will find out right now.

Why the thermostat does not work on the VAZ 2114: symptoms and causes

Constant overheating or, conversely, operation at a low coolant temperature not only threatens a high level of wear on rings, pistons and liners. In critical cases, overheating can cause the piston to stick or seize, rotate the main or connecting rod bearings, bend the valves, destroy the camshaft and many other unexpected troubles.

Old and new thermostat valves. Wear is obvious

How does the VAZ 2114 thermostat work?

Theoretically, a tens thermostat is a regular valve that is controlled by a temperature-sensitive element.

Depending on the temperature of the coolant, it either closes the gate and sends antifreeze in a small circle, bypassing the main radiator, or opens it and forces the liquid to circulate in a full circle, including the cooling radiator, heater, engine water jacket, and throttle heating system.

As shown in the diagram, the thermostat is designed as a spring-loaded bypass valve. Under the influence of a spring, it is in the open position and passes liquid in a full circle through the radiator of the cooling system. In this case, the liquid cools faster, but, naturally, warms up very slowly, especially in winter.