Possed the beginning of a whole family of cars. Some of them are available to this day. This model range is inherent in high reliability and relative simplicity of execution, which is one of the main causes of the high popularity of the car. At the same time, conditionally long-term operation revealed a number of significant drawbacks. One of them is a cooling system.
It works great on a relatively new car, however, as soon as the service life exceeds 10 years, failures appear in its work. They are ultimately the same. The arrow of the device indicating the temperature is invariably crawling up. The reasons due to which the VAZ 2110 engine is heated, maybe several, and this problem requires a detailed consideration.
Car cooling system
The cooling system is made according to the classic scheme. Circulation of coolant is carried out in large and small circles. Its transition from one circle to another is automatically carried out using a thermostat. Tosola cooling occurs in the radiator, which is made of aluminum for better heat transfer.
To prevent engine overheating, with a long operation on low gears in the car, a fan is provided, which turns on automatically when the temperature is reached a certain value. The main causes of car malfunction VAZ 2110:
- thermostat breakage;
- fan does not work;
- airlock;
- low cooling fluid level;
- dirty engine surface.
Any of these reasons can be a reason for the fact that the engine will warm up much. As a result, the car will lose a significant part of its power.
Malfunctions of the thermostat and fan
The symptom of the thermostat malfunction is a sharp increase in temperature without any visible cause. That is, the car engine worked as usual, there was no long standing in traffic jams and movements on the first gear, and the device arrow is close to the critical mark. Why is this happening? The fact is that, as a rule, the thermostat encourages in the closed position.
In this case, the fluid continues to circulate into a radiator bypass, which is not enough to cool the engine. Install whether the thermostat is really to blame, very simple. It is necessary to warm the engine to a temperature of 90 ° C. Now you should estimate the temperature of the nozzle, which goes to the radiator. If it is cold, the thermostat is subject to replacement.
In contrast to the previous case, the engine overheating is preceded by long-term operation on low transmissions. In this mode, the VAZ 2110 radiator does not have sufficient blowing and when the temperature is reached at 95 ° C, the sensor is triggered, which includes a fan. If this does not happen, the engine overheating is inevitable. Such damage is complicated by the fact that faults, except for the fan itself, may occur in the circuit of its power supply.
How a special case should be mentioned by the fuse brace. 
If when contacting contacts, the fan electric motor begins to spin, the sensor is faulty. If not, then the reason may be in the fuse, and it is necessary to check it. In case of its serviceability, further repair requires the skills and availability of a special device, so it is better to turn to a specialist.
Each car owner faced the fact that the 16-valve engine VAZ-2112 began to warm up. If you look at the dashboard indicator, the arrow strives for the red zone, and the fluid boils in the expansion tank - this means that there is a malfunction in the cooling system.
The arrow of the temperature indicator went into the red zone, which means the engine in the overheating state
Many motorists remember the causes of the effect on the old "Zhiguli". On the 16-valve engines, the causes of this effect are almost the same. Consider what reasons can serve as the main power unit begins to warm the supernormum:
- System cloghood.
- Thermostat enclosure.
- Pump damage. Replace the pump. .
- Radiator.
- Fault Cooling sensor.
- Do not trigger the cooling fan (see ")".
All these problems can be caused by engine overheating.
Elimination methods
To eliminate the causes of the engine heating, it is necessary to establish the epicenter of the effect. To do this, it is worth checking out each node. After determining the problem, it is worth finding the exact cause and eliminate it. So, consider the sequence of actions.
Engine cooling system circuit
Radiator and pipes
One of the reasons for overheating of the engine may be that the radiator and nozzles are clogged, which affects the circulation of fluid in the system, and can also lead to the fact that cracks in the nozzles and the radiator breakdown will appear that the coolant leakage will appear.
With an insufficient number of coolant in the system, the power unit will warm up faster and long cool, and the cooling fan will work almost continuously.
Radiator and cooling system nozzles
The problem of solving the problem is quite simple - dismantling the radiator from the system and its cleaning both outside and inside.
The second stage will be the inspection of pipes for the expenditures and replacement of wear products. As practice shows, many motorists to extend the cooling system of the cooling system (tuning version) of the radiator and tubes.
Pomp (water pump)
One of the main causes of overheating becomes what appears platform water pump . Determine this fault is quite easy, because the corresponding howl appears in the pump area. Also, a sign of a malfunction can be the fact that with the pump shaft will flow fluid. The malfunction is eligible enough - the water pump replacement.
Water pump installed on the engine
Thermostat
Thermostat is the first place where it is worth looking for a malfunction.
So, as the thermostat in a small circle, the engine is heated more oftenEven when traveling on the highway, where a sufficiently oncoming air flow so that the system can cool.
Motor Shot Thermostat
There is one nuance when the thermostat should not be changed - this is if it failed in winter. Then, additional cooling provides a minus temperature. Of course, if the thermostat has failed in the summer, then to prevent overheating of the motor, it must be replaced as soon as possible.
Cooling sensor
The cooling temperature sensor is a harmless breakdown, which can lead to the fact that on the instrument panel, the indicator will show incorrect data, so the driver will not even know what engine overheating has occurred, until it boosts along the way.
Usually, this malfunction accompany many fair factors, so it is quite difficult to miss it. Solving the problem is one - replacement of the cooling system sensor and reset the errors that have arisen in the ECU.
Cooling sensor
Fan
The last cause of overheating, especially in the summer, the cooling system fan becomes.
The fan under the hood is indicated by the arrow
So, the breakdown of this node can lead to the fact that the engine will overheat, but.
In this case, the consequences may be the most diverse, well, you need to check the fan in good condition, as well as its inclusion sensor is accurate. This item fails quite rarely, and therefore the cause is not a triggering may become an elementary fuse or a wiring fault that is easy to eliminate.
The consequences of late elimination of defects
Not all drivers are aware of what consequences can be caused by the fact that the engine will overheat, and continue to ride with a constantly working fan or frequent overheats.
So, the consequences of strong heating of the engine are divided into 3 stages, which should be considered separately.
Weak overheating
When the engine overheating up to 10 minutes of consequences, there may be minor. So, cracks will appear in the sockets of the cooling system, the oil seals and the camshaft are deployed. Also, there will be extended valves, and the oil will fall into the combustion chambers, which will be marked by the release of black smoke from the exhaust system.
The consequences of weak overheating, namely the extension of the valves
Significant overheating
With significant overheating, deformation occurs, or rather deflection of the head of the cylinder block. To eliminate these consequences will have to dismantle the GBC and give it to the surface protocate. Thus, it turns out that the head of the block is subject to overhaul.
Strong overheating
With a strong overheating of the cylinder block, the cylinder block is deformed and roasted, while the piston group is melted, the deformation of the connecting rods or even the crankshaft break. Thus, the engine is not subject to repair, since the walls of the power unit are usually crumbling, and their restoration is impossible.
conclusions
The reasons for heating and overheating of the 16-valve engine are set and removed methods. Thus, the late repair of this node can lead to the fact that the engine will finally fail and will be subject to replacement. Therefore, if the first signs that the cooling system gave a failure, it is necessary to find and eliminate the cause, since the replacement will be released, much more expensive.
Overheating of the engine is not uncommon for such a car as a VAZ 2110. Preferably this problem is found in machines with a large mileage. Although it is not worth excluding the overheating of the motor with relatively new instances.
The culprit is often the mileage becomes often. As the car is operating, the details wear out, the systems are gradually come into disrepair.
Common reasons
As is known, the VAZ 2110 is equipped with two types of engines - with 8 and 16 valves. There are several basic, most common causes due to which this most overheating of power units occurs.
Consider each of the reasons and ways to eliminate these problems separately.
Low coolant
The coolant plays a huge role in the cooling system. Special substance, namely antifreeze or toosol, poured into the expansion tank.
Material on the topic:
In a normal situation, the level of cooling solution must be at the level of the rapid risks of the MAX on the tank housing. This suggests that the capacity is completed by about 50-60 percent.
If there is no such mark on the tank, focus on the clamp. The fluid must reach the upper edge.
- If the motor overheating occurs, try simply adding the missing amount of coolant so that it is at an optimal level of filling.
- If you have not changed the coolant for a long time, it is better not to add fresh, but simply replace it completely on a new cooling fluid.
- Choosing between Tosol and Antifreeze, most VAZ 2110 owners prefer the first. And mainly due to the financial accessibility of Tosola. But in practice antifreeze is better. Its one of the most important advantages - the substance does not freeze with severe frosts. For separate regions of our country, this is a key factor in the choice of coolant.
Thermostat
Another reason for the overheating of the motor is a jamming thermostat valve. If it remains in a closed position and does not open, the coolant will only carry out its movement on a small contour. As a result, this will lead to a strong heating of the power plant. Overheating itself threatens very and very serious consequences.
Such a malfunction can manifest itself at the most inopportune moment - on the way. Perform quality repairs on the side of the road you can hardly succeed. But one method can be tested - knock on the thermostat housing. Often it allows for some time to return its performance to the device. So you will be able to get to your own garage or the nearest maintenance station. There is already a thermostat is replaced with a new one. Repair it does not make sense. If he led once, the situation will certainly be repeated soon.
Material on the topic:
temperature sensor
Temperature sensor is necessary in order to react to changing the heating of the motor. When the specified mark is reached, the sensor triggers and turns on the cooling fan.
If this device malfunction, the power unit overheats, since the fan is not activated. Consequently, the temperature does not fall below the critical marks, but continues to gradually rise.
Material on the topic:
If you have a similar trouble, caught on the way ( most often, the motor overheats when it is in traffic jams, since the engine works, and there are no cooling oncoming air streams ), Try to quickly leave the congestion, find the free area of \u200b\u200bthe road.
On the free segment to turn away, and then start braking the engine. So the temperature will decrease, the overheating will not happen. It is impossible to regularly exploit the car in any way. But this is a great way to get to the garage or car service, determine the cause of the sensor fault, and then replace it.
Cooling Fan
The symptoms of fan faults is similar to the non-operating temperature sensor. That is, the engine will warm up, the pointer on the dashboard will be in the red zone.
Overheating of the car engine is a problem with which every driver may encounter.
In this article we can find out:
- How to notice that the engine overheated;
- Why the engine is heated at all and in certain situations;
- How to do when the engine overheating.
To understand the essence of the question, it is necessary to consistently read all the explanations of the auto mechanic with experience.
How to determine that the engine overheated
At first glance it seems very simple - in terms of the engine temperature instrument, or - sensor. This is true if it were not for one thing - the novice motorists are so passionate about the road atmosphere around that they look at the instrument panel only in one case - how much fuel remains. Motorists with experience, on the contrary, due to confidence in their abilities, also do not look at the instrument panel of the car. And as a result, the situation often arises that overheating is detected when the temperature of the engine has long exceeded the permissible norms, and irreparable damage is applied the engine. It is the irreparable overheating - one of the most difficult faults that leads to very serious consequences. But it's a dumb later.
But there is a way that will not let the moment of overheating. In traffic, it is problematic, and it is not always present, but you should know about what:
As soon as the temperature of the engine exceeds the allowable rate, with a sharp press on the gas pedal, or when the car is accelerated, even a small, distinct listen to detonation chapeswhich in commonarodies are called "fingers knocking." This is not true, but this definition knows everything.
If you have heard such a sound - 99% of the probability that the engine has overheated, and measures must be taken.
The detonation knock is a ringing metal knock, the frequency of which coincides with the frequency of rotation of the engine. You probably heard such sounds when refilling with poor-quality fuels. Where did the concept of "knocking fingers", I personally unknown. But the true cause of the occurrence of such knobs is a violation of the combustion process of fuel. What you hear is nothing but the explosions of the fuel mixture. With the normal operation of the engine, the combustion process is controlled as soon as one of the parameters of the work is disturbed - the process comes out from under control, and the combustion turns into an explosion. Hence the concept - detonation (from the word to detonate - explode) knocks. When the engine overheating is the first sign.
Before you continue the conversation, let's decide that it is normal temperature, and what - overheating. There is no single response, but there are general rules.
Engine temperature within 85-95 degrees Celsius is a working.
Engine temperature up to 100 degrees is permissible. This means that short-term increase in temperature up to 100, sometimes up to 105 degrees - allowed. It is briefly - up to 5 minutes.
Engine temperature is above 105 degrees Celsius - overheating, and measures must be taken.
Causes that may cause overheating
1. Lack of coolant. The liquid in the engine boils not because it is not enough, but why: remember the outer surface for cooling? With a lack of fluid, the surface of contacting the liquid and the heated motor is insufficient, and the transfer of heat into the environment is bad. Here is hence and overheating. The engine cooling system is not sealed, as many believe, and during operation, fluid evaporates - do not forget to check its level regularly. And of course, follow the state of the radiator and pipes - the leaks are unacceptable. There are cases of internal leaks - as a result of damage to the gasket between the head and the cylinder block. Water from the exhaust pipe will not run, but the constant decrease in the level of the fluid without visible leaks - the reason will be presented and refer to the specialist. Water accumulated in cylinders, at the time of starting the engine can lead to hydro-strike - this in a literal sense can destroy the piston group, and not only.
2. The state of the radiator. The lumens between the radiator cells are quite small, and they can gradually be contaminated by representatives of the insect world. This is not a joke, there was a case when a slight contamination of the radiator (together with the poor state of the engine) - led to a constant overheating of the car. Watch out for the cleanliness of the radiator, and at least sometimes blow it down with compressed air.
3. Incorrect ignition angle. When the ignition angle is impaired, the fuel combustion process is broken. As a result, an increase in the combustion temperature and lowering power. Power fell, and no need. What do you do? That's right - we click on the gas pedal more. It turns out that on the calculated mode of operation of the engine (at which normal cooling occurs) - more fuel is spent. Hence overheating. By the way, the problem with the ignition may occur (it is spontaneously, and not after your intervention in a finely well-established engine mechanism) in the case of stretching a belt or timing chain. This is not the only opportunity, but widespread - keep in mind.
4. Fuel quality. An inappropriate octane number leads to a reduction in power, and an increase in the temperature regime of fuel combustion. There is one way out - refill in one place, so the probability of getting bad gasoline is lower.
5. Deposits on the walls of the engine and the radiator. The reason is simple - the use of poor-quality coolant, and even, water. A little more in detail. From the point of view of physics, the use of water is better because water has better thermal conductivity than alcohol-containing antifreeze. But - in the water there are salts (you can observe on the walls of the kettle) - also occurs inside the engine. As a result, water circulation is disturbed, cooling efficiency decreases and the engine overheats. If we pour water into the expansion tank - leution distilled, it is cleaned from salts. And it is best to use special antifreeze. Believe me - completely remove scale from the engine - it is impossible. And one more "Charm of Water: If, after water, for example, by winter, you will fool antifreeze - be prepared for drips (flow can anywhere: the radiator, nozzles) is a fact. If you constantly drive "on antifreeze," nothing happens, but after the water - antifreeze flows at 99%.
6. Engine wear. A lot of aspects can be attributed here, but in most cases it is the wear of the piston group. With long-term operation of the car, piston rings that serve to seal the combustion chamber wear out that leads to a decrease in compression, fuel combustion disruption, power loss (remember the formula) and overheating cars.
As it turned out too difficult. If it is simpler, then this: the fuel is better combined at a certain pressure, which is created in the combustion chamber. Pressure is about 12 atmospheres. If you take a pipe, plug in potatoes and pour inside, then inside the pressure will be created, which is called compression. The force with which you blow, will present the force of expanding fuel when combustion, which presses the piston and leads to the rotation of the crankshaft. Rings serve for a more dense fit of the piston to the cylinder (in our case the potato and tube). Now, if you put a piece of potatoes, a loosely adjacent, and come down - the air will pass by the Piston potatoes.
This is where it happens in the engine with the wear of the piston group (wear of the rings and wear of the walls of the cylinder). As a result, part of the energy of fuel expansion during combustion passes by the piston (between the piston and the cylinder), and the compression is reduced (optimal pressure in the combustion chamber), which worsens the combustion quality. And again - the loss of power and overheating. Here the output one is to contact a specialist.
7. Radiator fan. In some (old) models of the car, such a reason was absent, since the fan was driven directly from the crankshaft through the belt. Now, the fans are electrical, and turn on when the temperature sensor is triggered. The sensor may not work, and the fan will not turn on. This is a fairly common cause. It's just worth going out and see - it is possible to oxidize the motor connection contacts.
8. Air traffic jams formed during liquid pouring. By the way, in this case, the temperature sensor may not show an increase in temperature. How to get rid of traffic jam - the topic of a separate article. From myself I will add - when pouring the liquid into the cooling system, the car should stand horizontally.
9. Thermostat. The thermostat shares the cooling system into two circles - small and large. Small used to warm the car (the amount of fluid is reduced, the radiator is disabled), when a certain temperature is reached, a large circle is connected (the radiator is connected) if the thermostat is jammed, then only a small circle is used: the amount of fluid is not enough, the radiator is disabled - overheating cars. You can determine by filling the lower nozzles suitable for the radiator: if they are cold, and the car overheated - change the thermostat.
10. POMP. Pomp is a pump that forcibly distilts water to improve circulation. By and large, two troubles can be happening with the pump: she simply flies - you will see, and the second one, which is more difficult to determine - wear the impeller of the pump. With the wear of the impeller, the pump slowly shakes the liquid, as a result in the engine, the liquid heats up faster than in the radiator (water circulation is worse) it is possible to determine the non-uniform heating - the radiator is cold, and the engine boils. ATTENTION - the same symptoms and in terms of thermostat, and the presence of air traffic jams.
There may also be other reasons - one of which from the discharge "will not come up with". For example, a completely weakened parking brake, which leads to a loading of the car, an increase in the load on the engine, and overheating. The "handler" cable can subdinct - there was such a case. The car slows down slightly, but this is enough in the heat.
And some more sin on the included air conditioning. By and large, it is rather a contrived reason. Of course, the air conditioner creates an additional load on the engine, but it was taken into account when developing. If a very engine is bad - complete wear, then this can happen. What to do - turn off the miracle of modern automotive industry.
Perhaps, on this and let's stop. The only thing we will talk about at the end is overheating in traffic on the road. No one is insured from this.
How to do if the car overheated in traffic
With a long-term movement of the car on a reduced transmission, the engine works with high power, which in itself leads to overheating. Add here the lack of a counter stream of air required to cool the radiator.
What to do?
The main thing is not to panic. Short-term overheating is not afraid, but if you see that the car does not cool, it's time to act.
Important - Without extreme need, do not shuffle the engine. It is without extreme. Heated, superheated engine - almost 100% repair warranty. Describing what is happening in the engine in this case for quite a long time (turning inserts along with the crankshaft, with the subsequent start of the engine - the smaller, from possible troubles), simply accept the faith.
IMPORTANT - Do not try to water the water with water, or pour cold water into the radiator. The result is one - repair. Moreover, you can try so that without replacing the block and the heads of the cylinders can not do. Another "charm" of cold water ¬- microcracks inside the block. Find and eliminate will be very and very difficult, if at all possible.
The car overheated - try to move onto the roadside. It does not work - do not panic, and do not pay attention to others - it is important for you to save the engine.
Stopped at idle, turned on the heating stove to full, and waiting. If after 5-10 minutes the situation does not improve - the motor is jammed.
It will not be superfluous to open the hood, the main thing in the panic does not forget to install the car on the parking brake.
The only reason for drowning the engine immediately, are couples from under the hood. Most likely, the cooling nozzle burst, and the further operation of the engine will only worsen the situation.
Here is such a, engine overheating, if you consider more closely. Now you know - why the engine is heated, and how it will cope with it.
Cooling fluid overheating alarm
Most cars are equipped with a thermal sensor measuring engine operating temperature. If during the trip, the overheating alarm (or the temperature indicator arrow passes into the red zone of hazardous heating), it means that the cooling fluid temperature is between 120 ° C and 126 ° C. This temperature is still below the coolant boiling point (provided that the cooling system and the cooling radiator is good). If the coolant overheating signal lights up, the following must be done:
Step 1. Turn off the interior air conditioner and turn on the salon heater. This will help you quickly select the engine from the engine. Install the fan to the maximum speed of rotation.
Step 2. If possible, turn off the engine and give it to cool down (it may be required for more than an hour).
Step 3. In no case try to remove the hero of the radiator until the engine cools off.
Step 4. If the overheating alarm is on, it is impossible to continue the trip, otherwise the engine can get serious damage.
Step 5. If the engine does not breathe heat and is clearly not overheating, it is possible that the problem is associated with a thermal sensor fault or temperature indicator. Then you can continue to move, but it is necessary to stop from time to time to check whether the signs of engine overheating did not appear and there is no trace of the coolant leakage.
Common causes of engine overheating
Low coolant level.
Clogged, dirty or blocked radiator.
Factable fan drive clutch or faulty electric fan.
Incorrect ignition advance angle.
Low oil level in the engine lubrication system.
Turning fan drive belt.
Faulty Her Iron Radiator.
Shining brakes.
Freezing of coolant (in frosty weather).
Faulty thermostat.
Fortified Water Pump Cooling System
(Slipping of the impeller on the inner shaft of the pump).
Experience exchange
The owner complained that the engine of his car overheats, but it only happens when he rides on high speed motorway. The car was equipped with an engine, which, when driving in the city cycle, worked flawlessly.
The mechanic washed the cooling system and replaced the hermograph of the radiator and the water pump, believing that the cause of overheating was to reduce the cooling fluid consumption in the cooling system. In the course of further verification, it was revealed that when the engine was rotated, the coolant was sprinkled from one of the cylinders when the engine was twisted. The problem was eliminated after the sealing gasket of the head of the cylinder block was replaced. Obviously, the leak caused by the defect of the gasket was not so high to cause a violation of the engine mode - until the speed and load on the engine did not increase so much that the growth of the coolant leakage and heat is not caused to rapid growth Temperatures.
The mechanic also replaced the oxygen (0 2) sensor, because the composition of the coolant includes silicone compounds and silicates, which, occur to this sensor, are usually poisoned. The deterioration of the sensor characteristics could contribute to the occurrence of this fault.
Fig. 7.42. In the mid-1980s, many manufacturers began to use drive polyclinic belts (belt with longitudinal v-shaped swing instead of transverse teeth). Water pumps of old models are suitable for the engine, but it may be that they will rotate in the opposite direction to the one in which they must. This can lead to engine overheating after replacing the pump. If you install an inappropriate fan, the angle of attacking its blades will not match the required air stream through the radiator
To properly work the cooling system, the condition and correct installation of the drive belt is important. The tension of the drive belt has a decisive effect not only to the mode of operation of the water pump, as well as the AC generator, the compressor of the air conditioning system and other belt drive units. When replacing the belt or adjusting its tension, it is necessary to measure the belt tension using the belt tension meter, in order to verify that it defines the desired.
