What is this device for? It ensures that the engine can heat up in the shortest possible time or, on the contrary, practically not heat up. The thermostat is equipped with a valve, inside of which there is a special substance. This, in turn, influences the fact that the thermostat on the VAZ 2110 with 16 valves decides when to open and when vice versa.
It is known that while the engine is running, the car can quickly heat up to 80 degrees. After this mark, the heating rate decreases, and after 94 degrees the car stops heating, provided that the car is not in a multi-kilometer traffic jam.
Where is the VAZ 2110 thermostat located?
It can be found just below the air filter housing. To see the VAZ 2110 thermostat, you need to look into the engine compartment and find the air filter housing. After this, it’s worth looking under this housing, so to speak, and you will be able to see the desired thermostat, or rather its cover. The device itself is hidden under it.
What are the features of the classic and alternative connection options?
- The main thermostat valve is flushed with coolant from the main radiator and engine;
- The thermostat opens for additional cooling - in this case, there is control not only over the entire coolant temperature in the system, but also over the temperature of the coolant leaving directly from the engine, and this, as is known, is the hottest place in the cooling system.
The standard connection diagram for a six-hole thermostat will look like this.
- The thermostat is additionally washed with coolant from the heater and bypass.
- The device controls the temperature, which is lower than the motor temperature (from the thermostat output or from the bypass). It turns out that in winter such a thermostat will work later than according to the classic connection scheme. The functioning of the stove also improves, which works more actively the lower the temperature outside.
The alternative connection diagram has two options.
As for the speed of warming up the engine, it remains unchanged, because the path of coolant flow until it reaches 82 degrees Celsius has not changed, as has the heat capacity of the system.
When to think about replacement
If the device has stopped opening the valve that releases coolant to a large circle, or the valve is simply jammed and does not close on its own, then you need to think about replacing the Grant thermostat on the VAZ 2110. If you do not replace the device in time, negative consequences may occur.
If the fluid cannot circulate in a large circle, the car will overheat. This should not be allowed and, if possible, the thermostat from the Granta VAZ 2110 injector 16 valves should be replaced as soon as possible. Overheating can cause the cylinder head gasket to burn out. Moreover, the friction of the car itself will increase.
If the valve gets stuck in the open position, which is extremely rare, the motor will not be able to heat up. It is also advisable to replace the device.
Symptoms of a problem
There are several main signs of a malfunction:
- The engine takes a long time to reach operating temperature.
- While driving, the engine overheats even on short trips.
- The engine temperature drops while driving and rises if you stop and let the engine idle.
- A few minutes after starting the engine (in warm seasons), the lower pipe is warm. This indicates that the thermostat is opening very early.
- If the engine (coolant) temperature is close to boiling and the lower hose is cold, it is most likely a stuck thermostat valve.
How to find out what condition the thermostat is in: working or not
To check the thermostat on a VAZ 2110 it is not necessary to remove it from the car.
You can simply start the car and warm it up to operating temperature. After warming up, leave the cabin, open the hood and look into the engine compartment. There you will need to find the lower pipe coming from the thermostat itself. This detail needs to be thoroughly felt. If it is slightly warm at the very beginning, and gradually warms up as the engine warms up, then the thermostat is working as expected. If the lower pipe remains cold, then the thermostat needs to be changed. To check the functionality of the VAZ 2110 8-valve injector thermostat, you can disassemble it and remove the thermocouple. He is precisely responsible for the operation of the cooler. It needs to be checked. To do this, you need to take hot water and lower this element into it. You will need to place a thermometer in the water and observe how the temperature changes. The device itself will also need to be monitored.
The water will need to be heated. Once it reaches 90 degrees, the thermocouple rod should extend. If this is not the case, then this part needs to be replaced. By the way, in most situations in the VAZ 2110 you do not need to completely change the thermostat. This is quite expensive and, as a rule, is only necessary when there is visible damage.
When the need arises to replace the thermostat from Granta for a VAZ 2110 injector 8 valves, car owners are forced to buy a new device. You should also be careful here. It is advisable to check the device before purchasing. To do this, blow strongly into the fitting. If it is not noticeable that air is passing anywhere, then a small circuit prevents its passage. This means that such a part is not worth buying. How much does a thermostat cost for a VAZ 2110? It is impossible to answer this question unambiguously, since the price depends on whether the unit is new or used.
Tips before starting the procedure
- Before you begin removing the thermostat on a VAZ 2112, be sure to ensure that it has completely cooled down after operation.
- The thermostat is removed when it is replaced due to unstable engine temperature conditions (overheating, insufficient heating). To carry out this procedure, completely draining the coolant is not necessary.
- To check the condition of the thermostat, start the car engine and touch the lower radiator hose, at first it should remain cold, and only after the coolant temperature reaches about 90 degrees, the hose will begin to gradually heat up. If there is no such reaction to the manipulations performed, remove the thermostat from the car and check its functionality; if defects are detected, it must be replaced with a new one.
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Step-by-step process for replacing the thermostat in a VAZ 2110 injector 8 valves
The first thing you should know is that the part is replaced only when the engine is cold. If the thermostat is replaced while the engine is hot, you may get severe burns. Therefore, it is worth observing safety measures.
How to replace the thermostat on a VAZ 2110 with your own hands:
- Drain all coolant from the engine. This is important for successful thermostat replacement.
- Remove the air filter housing.
- Take previously prepared tools and loosen the clamps of two hoses: the coolant pump and the radiator. Disconnect the hoses.
- Now you need a hexagon. They will need to unscrew the 3 bolts securing the thermostat cover and carefully remove it. Under the cover you will find the device itself, which needs to be replaced.
- There is also an O-ring on the cover itself. It may be severely compressed or cracks or other damage may appear on it. In this case, the ring itself should be replaced.
How to install the thermostat:
It is necessary to carry out all the same actions that were carried out to remove the device, only their order should be reversed.
If a complete replacement of the VAZ 2110 thermostat is necessary, then you need to remove the one that has stopped working normally and replace it with a new unit. After this, the cooling system must be filled with antifreeze. It is filled through the expansion tank. You can use new liquid or already filtered one.
To eliminate possible air pockets, the car should be started and allowed to idle for some time. The car should warm up. This way you can eliminate all air pockets.
At the end, it’s worth checking to see if there are any leaks and if the coolant is at the normal level.
Operating principle of the cooling regulator
The function of the thermostat is to control the movement of the working fluid to maintain the engine temperature within the operating range. When turned off, the coolant moves along a small circuit, giving off heat only to the interior heating system.
When 87ºС is reached in the adjustment mechanism, the locking properties of the special heat-sensitive element holding the spring-loaded piston are reduced. With increasing heating, the strength of the protection decreases, and the rod opens the bypass valve to allow coolant to pass into a large circle with a mandatory visit to the large radiator for enhanced heat transfer.
When the operating temperature drops, the reverse process occurs in the control mechanism; as a result, the main valve spring returns the thermostat to the closed position. The stable operation of the protective element is the main factor for the optimal operation of the entire cooling system and the safe operation of the machine with an injector.
