In addition to the tools used to repair the vehicle, you also need tools for checking it. Among the diagnostic tools of this kind, the pneummeter is distinguished.

Purpose Pneummeteter

The pneummexter allows you to determine the probability of leakage in the cylinders and the state of mechanics in the engine, especially the tightness of the camera, and also exclude this kind of breakage. The drop in the pressure falling into the cylinders through the candle holes is measured using a pneumatic) and, thus, malfunctions are detected.

When working with a pneummetter, you have the opportunity to determine the state of the cylindrophone group, the integrity of the gasket of the GBC and the density of the adjustment of the valves. Also, with the help of a pneummetter, you can estimate the tightness of the inner view of the motor cylinders.

Interestingly, it is possible to carry out work with a pneummexter at partly inoperative either dismantled motor, as well as on a non-working starter.

Device and principle of operation of the pneumatic

Pneummetter - pretty simple diagnostic equipment, but very useful. Its device is simple and comfortable. The pneummeter from the tube having two cameras between which the loaf is mounted. Pressure gauges are installed at the entrance and exit, and the pressure gauge, which is secured at the output, carries out pressure in percent.

As for the gibler, it is selected so that at a certain level of pressure, if the inlet is fully open, the pressure gauge shows a hundred percent leaks, and if completely closed - zero percent. In other words, in the conditions of a fully sealed surrounding space, the indicator of the pressure gauge will be zero percent.

The principle of operation of the pneummexter is to detect exemplary faults. Under the conditions of the fully open inlet, the indicator will be one hundred percent, and in the presence of depressurization there are the same values. This does not mean that there is no piston in the cylinder, it means that the level of looser and leakage in the epipal space is identical to the diameter of the inlet of the pneummeter.

Pneummetter from such components:

• Input fitting, compressed air is supplied to its sensor.
• Output fitting.
• Pressure pressure gauge.
• Manometer controlling air leakage. It carries out pressure in the epipal space of cylinders.
• Check valve.
• Air pressure regulator, which is served.
• Special adapter and hose connected to the candle hole.

How to use a pneummexter

Pneummexter is quite easy to use. It is important to know that before connecting it to the compressor or another compressed air supply device, it is necessary that the pressure regulator is in the leftmost position. How is the leak test?

1. First, warm the motor up to a comfortable temperature, then drain it and turn off the ignition.
2. Unscrew the candles.
3. Install the cylinder piston in the upper point of the compression tact.
   
4. Lock the crankshaft. For MCPP - turn on the highest transmission and tighten the parking brake. For automatic transmission - hold the crankshaft of the motor with a lock or a special key.
5. Check if you need an adapter to connect the pneummex hose and connect it to the screw hole of the required cylinder, if the motor is gasoline, or in a diesel engine - to the nozzle, but until you connect this hose to the pneummetelate.
6. Next on the left pressure gauge, install the pressure regulator of the air supplied to the minimum level, which will protect the pressure gauge during the cutting air supply.
7. Then you can connect the pneummetexter to the pneumatic network or compressor, exposing the pressure of 6-10 atm.
8. Applying the pressure regulator, smoothly increase the pressure. If operating pressure is set to the device, as a rule, 2-6 atm, we set the required.

   

9. We attach to the pneummetelater the pneumatic hose connected to the required cylinder. We remove the results from another pressure gauge, whose indicators can be measured both in atm and in percentage of leakage depending on the pressure value, which is supplied. Color indicators are not rarely found, denoting "good", "critical" and "satisfactory" leakage state.
10. When detecting critical leaks, perform additional research.
11. Before disconnecting the pneummexter from the cylinder or compressor, reduce the adjustable air regulator to the minimum value.
12. Disconnecting the pneummeter from the cylinder or the nozzle, repeat this procedure for each of the data of the engine elements.

We estimate the testimony of the pneummeter

Even a new car will not give one hundred percent tightness, because in the motor, in any case, there are constructive gaps that allow the level of leakage of 15-20 percent. During the operation of the car, these indicators increase to 30-40 percent. This table will allow you to navigate in the testimony of the pneummexter.

If the leak indicator flashes red, you need to figure out the reason for such indicators in more detail and determine the leakage place. To do this, do the following:

1. Remove the lid of the radiator, the expansion tank, open the oil-tapping lid and use the oil probe. And if you have a carburetor, remove the air filter cover.
2. We install 2-6 atm pressure at the input pressure gauge.
3. Now you can visually determine the places through which the air leaves, or by noise, which air creates when you exit:
   If it comes out of the oil hole or the nests of the oil probe, this indicates the depressurization of the pair of a piston-cylinder, any problems with piston rings or about the destruction of the piston.
   The air from the inlet system comes out - this indicates that the pair of the "intake valve - the valve saddle" is depolent. Most likely, failed in the work of the valve mechanism.
   The air from the muffler leaves - this indicates the leakage of the "Saddle of the Valve - Exhaust Valve" pair. Most likely, failed in the work of the valve mechanism.
   The air leaves the adjacent candle hole - the crack in the cylinder or depressurize the gasket of the GBC.
   A sharp increase in the level of fluid in the radiator or an expansion tank (the air bubbles can be noted) indicates the start of the gasket of the GBC, the crack to the GBC, or there are such damage to the block itself.
   Also, you can also exclude a combination of all these types of damage.