The thermoflot or the oil radiator are an important component of the car, consisting of heat pipes and plates designed to allow heated oil to circulate. In this device the lubricant is cooled at a safe temperature.
There are natural cooling systems and artificial systems. The latter is equipped with an additional turbine that creates a strong air flow for better cooling.
The thermoflot is designed to provide the engine to the cooled oil required for operation, as well as to maintain the normal system temperature regime when a high power is required.
In other words, the thermoflot is mainly used to increase the duration of the engine. In addition, the oil does not lose its properties, while the pressure in the system remains normal.
A constant temperature is maintained by a thermostat, whose valve allows the oil to enter the radiator only when heated.
Common symptoms damn thermoflot
The thermoflot works in rather difficult conditions, but the pressure inside the device is not very high, which has a positive effect on it.
Usually drivers are facing the need to replace the thermoflot each time, at an interval of about 3-5 years (although in some czi it may be necessary even before).
There are several signs that a car has a defective thermoflot. Unfortunately, they are not necessarily unique, often confused with the symptoms of other defects. It is precisely for this reason that if the car has one of the following, you will lead it to an authorized service to send it to a rigorous inspection, so as to make sure that the engine is not influenced and that the real problem is, in fact, the failure of the thermoflot.
The most obvious symptom of a defective thermoflot is the physical deterioration of the radiator and associated pipes. If the damage is visible, the problem is easily solved. You know from the beginning what it is.
However, the rest of the symptoms is not so obvious. The most common signs of a defective thermoflot are:
- Degradation (decrease) of engine performance. This manifests itself in the form of slower acceleration and a lower maximum speed. In addition, the engine is heated by the lack of cooling.
- Black smoke – The deterioration of the thermoflot leads to the flow of the engine oil in the combustion chambers and, implicitly to the color of the black smoke. If you are experiencing a colored smoke on the exhaust pipe, but it is not black but rather yellow or blue, it would be advisable to read this article.
- Abnormal vibrations: the oil enters the combustion chambers that produce inappropriate explosions in different cylinders, also causing the appearance of vibrations at the engine level.
- Swollen radiator: the radiator will look like a football ball.
- The appearance of a dark layer on the walls of the expansion ship of the cooling system.
- The presence of oil leaks.
- Increase in oil temperature.
The causes of defective thermoflot
As in the case of other parts of the car, the failure of the thermoflot takes place for different causes, that is to say:
- Mechanical damage, even a trace of a small collision that this piece can suffer.
- Increase in oil temperature.
- Oxidation of metals, formation of limestone deposits inside the cavities.
- The constant heating leads to the «fatigue» of the metal, which reduces its resistance.
- The vibrations in the engine compartment contribute to the destruction of the connection points, which can cause losses.
- The frost of the piece leads to dilation and breakage.
- The poor quality of the material from which it is made.
- Small particles, dust and other contaminants are glued to the honeycomb, which significantly reduces heat transfer.
As you can see, the use of oil thermoflot significantly increases the efficiency of the engine cooling, improves engine protection and maintains oil performance at high temperatures.
Among the main advantages of a thermoflot, you can see that the cooled oil is supplied to the engine after crossing the thermoflot.
Solutions from Vrom Brasov Car Mechanics
Specialists recommend paying the utmost attention to the main characteristics of the thermoflot, as follows:
- Make sure it is made with quality materials. If the engine is forced, it is desirable that the thermoflot has effective solutions for better oil circulation through it.
- Another indicator regarding the duration of this device is the difference in temperature at the entrance and at the exit of the thermoflot.
- In order to extend the duration of the thermoflot and obtain a more efficient cooling, it is recommended to periodically clean the cooling system.
- Do not make the car work with a thermoflot consumed because it risks the destruction of the engine.
- If oil leaks appear in the cooling system area, it is necessary to carefully inspect the thermoflot, check the elasticity and integrity of its pipes.
For a better understanding of the role that Thermoflot has in the cooling system we will present normal temperatures in some areas of the engine system:
Therefore, in the next table you have the normal operating temperatures of the oil, in the case of a spark ignition engine, with natural aspiration:
| No.Crt. | Measurement point | Value ° ° с. |
| 1 | Cam and hand of fuel distribution mechanism | +50; +80 |
| 2 | The face of the piston | +340; +368 |
| 3 | The bottom of the cylinder block | +140; +220 |
| 4 | The bottom of the engine and auction tree | + 115; +185 |
| 5 | Oil tube | +80; +150 |
The following temperatures are applied for diesel models:
| No. Ct. | Measurement point | Value for air -cooled units ° с с | Value for cold units with liquid ° с |
| 1 | Piston | +270; +298 | +265; +310 |
| 2 | Inside the piston opposite to the burning room | +177; +217 | +165; +220 |
| 3 | Cylindrical block at the bottom of the coating | +130; +135 | +93; +137 |
| 4 | Upper part of the auction | +127; +157 | +128; +150 |
| 5 | Lower part | +112; +139 | +107; +137 |
We specified these temperatures to understand how important it is to be the correct functioning of the thermoflot, it practically has the role of maintaining these temperatures in the parameters for a long duration of the engine but the components.
To remember: Circulation of the cooling liquid and the circulation of oil in their respective sites are interconnection. If these circuits lose the seal, a fluid can be mixed with the other, which will negatively influence the engine.
It is strictly prohibited Manage a car with such a apparently insignificant malfunction, but which will certainly lead to a destruction of the engine.
It is recommended for visible inspection of the thermoflot at least once a year, or even more often. Maine of oil, dark deposits and fat spots will indicate that the radiator in the cooling circuit is depressurized.
Although the thermoflot is made of metal, its tubes have a low mechanical resistance: the gravel on the road can mix these tubes.
So if you come from Brasov or from what online program To our service in the situation in which he suspects a failure of the thermoflot. Make sure your car is on good hands!
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