With the problem of annoying knocking from under the hood, every driver can face. And it does not matter, domestic is a car or a foreign car. However, it is not necessary to panic - most likely your car is knocking hydrocompensators. The causes of such a knock may be somewhat.

In addition, the hydrocompensators can knock both on the cold and on the hot motor motor. Such a problem may occur not only on old cars with great mileage, but also on those who have just come down from the converable. However, it is not necessary to immediately run to the store for new details, as there are a lot of simple methods to eliminate the knock.

Device of hydrocompensator

The hydrocompensor is called a device that adjusts the gaps of the motor valves. The engine is able to heat up during operation, which leads to the natural expansion of metal elements. Designers take into account such features and therefore create special thermal gaps. However, another feature of the motor is the gradual wear of the elements, which respectively expands the gaps and we see such negative moments as a decrease in compression, the gradual destruction of the engine elements, a reduction in power and increased fuel and oil consumption.

An important detail of any inner combustion gasoline motor is a gas-distribution system. Its main details:

1.Chis camshaft, which begins to rotate using the timing belt (gas distribution mechanism).

2. Valve pushers.

3. Graduation and intake valves.

4. The camshaft with cams are flowing on it.

Only basic details are listed here, in fact more than them. The essence of the operation of the TRM is the synchronous rotation of the camshaft with the crankshaft, alternated pressure of the cams on the pushers, which leads valves in motion.

There are several types of hydrocomathers:

1.Grottroller.

2. Roller hydrotrode.

3. Hydropar.

4. Hydropar for installation in a rocker or levers.

Under the influence of time between the pushers (rocker) and the working surfaces of the camshaft, the gaps are formed. Once for their compensation, a simple adjustment mode was used using wrench keys and special tags. Adjust the gaps needed almost every ten or fifteen thousand kilometers. To date, such a problem practically does not exist thanks to the creation and active use of hydrocomathers.

Although the hydrocompensators are of different species, mostly the principle of their action and the device are no different. Basic details of the hydraulic components:

1.Corpus.

2. Channel for income inside the oil compensator.

3. Plunger Couple - Plunger Bushing, Spring, Ball.

The hydrocompanator is mounted on a specially designated place in the head of the cylindrical block. In addition, they can be installed on old types of engines in which their installation was not provided.

The principle of operation of the hydrocompensator is quite simple. The camshaft cam has incorrect forms. When he does not press the pusher, the gap increases between them. At the same time, the plunger's valve presses the plunger spring and from the lubricant system inside the compensator comes out, which slightly lifts the work part of the hydrocompanator, the pusher leads in motion and the gap between the pusher and the cam disappears.

When the camshaft produces turnover and the cam begins to give a load on the pusher, the working part of the hydrocompensator is lowered to overlapping the oil intake channel. Thus, inside the compensator, the pressure is increasing and the motor valve rod is transmitted.

Thanks to the use of hydraulic components, it was possible to achieve several advantages of new engines in front of the old:

1. The camshaft and valves decreased the number of shock loads.

2. The operation of the motor has become more quiet and soft.

3. No longer need to make valve gaps every-time.

Causes of the vocabulary of the hydrocommovensector

The knock may occur in two situations - if the mechanics of the hydrocompensator are defective or the problem in the engine systems that are responsible for the supply of oil. A professional automotive mechanic can exactly determine the cause of the vocompensor knock.

For the reasons of the first species include:

1. Putting the elements of the hydrocompanator. This is due to the gradual inheritance of oil and fall into it foreign impurities.

2. Getting into the hydraulic air compensator. It occurs due to the low oil supply to the system.

3. Scoring the oil supply valve, which is why it can slide.

4. Factory marriage of some elements of the hydrocompensator.

5. Wear shock coverage plunger pair. As a result of the fact that under the influence of the camshaft camshaft time is capable of leaving dents on the working surface of the plunger.

The reasons for the second species include:

1. Motor removal, due to which the characteristics of the motor oil are changed.

2. Bad oil viscosity, quality or incorrect climatic conditions.

3. Failed an oil filter.

4. We were clogged by mud or naigar oil channels, by which oil comes into the hydrakompensator.

5. Availability in air oil. This may occur if the oil level in the motor is lower or higher than the optimal one.

As we have spoken above, the hydrocomathers are capable of knocking on cold and hot. A knock when a warm engine is treated, as a rule, has already been caused by its already spent its or poor-quality oil. In most cases, the problem can be easily solved, just a bay new quality engine oil. Also, pay attention to the oil filter. If it is dirty, you should replace it with a new one. If the malfunction remains, this indicates that the problem is not at all in the hydrocomathers. Look for the reason for the knock in other motor nodes.

If you hear a knock on the cold motor, it is not as critical. The fact is that the cold oil has a completely different viscosity than when heated. This is the cause of the knock on the immentable engine. The oil is simply not able to get inside the hydrocompensator. Most motorists do not pay attention to the knock if the engine is still cold.

What hydrocompensator knocks how to find out

For a professional or experienced driver, this is not difficult. As a rule, use acoustic diagnostics, which allows you to reveal with the maximum accuracy, which precisely the hydrocompanator makes a knock. After finding the knocking hydraulic compensator, it is necessary to wash it thoroughly, to build back and run the motor again. If the knock remained, check the quality of the oil or look for the reason in other motor nodes.

Consequences of malfunction

As it was written above, many motorists do not react to a knocking knock from under the hood, which is caused by hydrocompensators. And in vain. After all, barely audible knocks with time can grow more seriously.

Faulty hydraulic components can lead to a decrease in the operation of the drive timing and have a destructive slow effect on the head of the cylindrical block. But the cost of repairing these nodes leaves much to be desired.

Tips motorist

As for the repair of hydraulic compensators, only the owner of the vehicle can decide - to give a car into the hands of qualified specialists or eliminate the problem with their own hands. In addition, the diagnosis of the problem you can spend from the master and identify the causes of the breakdown. And then see, for example, if only washing the hydraulic compensator is needed, then you can easily cope. However, if necessary, more complex repairs of the node, it will be advisable for help to professionals. Because illiterate interference in the engine system can over time turn on considerable repairs. Very often much more profitable and easier to contact a special service immediately, where all work will be performed by knowledgeable people. To extend the life of the hydrocomathers and other parts of the engine, should not be saved on the quality of the oil and do not forget to change it.