Advice 1: How to check the turbine on a diesel engine

The reason for the test of the turbocharger may be a drop in thrust or extraneous whistle emitted by the turbine. Drivers with experience have their own professional signs to verify the unit, but it's better to use special service equipment.
How to check the turbine on a diesel engine
You will need
  • - pressure gauge;
  • -
Instruction
1
In the service center the fault of the turbine is detected by connecting the scanner to a special connector on the car. In most cases, the reason for the shutdown is a boost pressure sensor charge air, or the turbine itself, which had worn out. To determine the pressure of air injected during operation of the turbine, connect to its output a special device with a pressure gauge. The testimony would clearly define you whether you need turbine replacement or partial repair.
2
Another symptom of turbine may be the release of blue smoke at the exhaust of a running warm engine during acceleration, as well as its disappearance at constant speed. The reason for this is the combustion of the oil which enters the cylinders of the engine due to leakage in the turbocharger.
3
Black smoke usually is formed during the combustion of the enriched mixture due to air leaks in inlet lines, which also indicates faults in the control system of the turbocharger (TCR).
4
On the contrary, the white exhaust gases – a consequence of the clogging of the drain oil line TKR. With the increased consumption of oil (0.2 – 1.0 liters per thousand kilometers) and traces of leakage on the turbine and the joints of the pipes of the air tract, the cause is likely to be the pollution of the air duct or the discharge duct.
5
It is also possible that there was a coking of the body axis of the turbocharger. The cause of the deterioration of dynamics of dispersal of the car can be an insufficient supply of air from a failed TKR.
6
If you encounter an abnormal noise, or whistle during operation of the engine the reason you need to look at air leakage at the junction of the outlet of the compressor and engine. On the serious breakdown of TKR and imminent failure will remind you of the characteristic cut at work, cracks and deformations on the turbine housing.
Note
As is known, the turbocharger system comprises a turbine, highway fence and the transfer of air into the inlet tubing, electronic pressure sensors, oil and air, the valve-stopping mechanism, etc. of the control System, which are equipped with many modern cars, in the event of failure of any of these systems shut off the turbine, which immediately affects the ability of the engine to develop maximum power.

Advice 2 : How to test the turbine in a diesel engine

On the development of the power of the turbo diesel engine is exposed to the setting and adjustment of the following engine systems: power supply system, preparation of the fuel mixture, the injection of fuel into the cylinder (ignition). And performance of the turbocharger.
How to test the turbine in a diesel engine
You will need
  • - special gauge.
Instruction
1
In turn, the functioning of the system as a whole depends on the health and adjustment of each element in particular. For example, a malfunction of the turbocharger comprising: a turbine, highway intake air and feed it into the inlet tubing, electronic pressure sensors oil and air, shut-off valves of the turbine, and so on.
2
In the event of a failure of any device or instrument with the electronic control unit will receive a command which will disable the turbine, and the engine is no longer able to develop maximum power.
3
In addition, will be reduced to three thousand per minute rpm of the crankshaft, which will prevent further operation of the vehicle.
4
If you experience such problems in the first place, fault diagnosis is performed. Connecting the scanner to a special connector on the car, the service technician will be able to determine the cause of the shutdown of the turbine.
5
As a rule, the blame for the disabling of the turbo is either on the pressure sensor charge air, either at the turbine, which may have exhausted its service life.
6
Pre-check of serviceability of the turbine is performed without removing it from the engine.
7
With this purpose, the output of the turbine is connected a special device with a pressure gauge that determines the pressure of air injected it with the engine running.
8
From the readings of the gauge depend on all future actions, or the turbine is removed and replaced with a new part or repaired, or continue the search for faults in other mechanical components. For example, the reduced pressure may cause as many as paraplegia or exfoliate from the inside of the rubber pipe connecting the delivery pipe of the turbo.
Note
The most accurate diagnosis of the turbine, which must first be removed from the engine, conducted on a special stand.

Advice 3 : How to check the pressure of the turbine

In the internal combustion engines of some vehicles installed with the turbocharger. Its role is in the forced air delivery into the engine cylinders, increasing the quality of the combustible mixture, which leads to an increase in power. Turbine is a very fragile mechanism, as it operates at very high temperatures. Often the cause of breakage of the turbine is the pressure drop in the system.
How to check the pressure of the turbine
You will need
  • Hoses, adaptors and pressure gauge.
Instruction
1
Determine the maximum pressure of the turbineusing the manufacturer's documentation. If information is missing, use the Internet and find out the allowable pressure from the manufacturer.
2
In most cases, to measure pressure can be from the intake manifold. Insights on it are closed by special plugs. Or connect a hose to the nipple of selection pressure. Make sure the header is connected after the throttle.
3
Make sure that the hose does not touch moving elements of the engine. Route the hose into the cabin and connect to the manometer.
4
Start the engine. Warm up the engine to optimal values of the coolant temperature. Do not rush the process of warming up, the engine needs to warm up gradually. It is desirable to warm the fluid to operating temperature on the go.
5
Choose a flat stretch of road. Loosen the engine up to 3000 rpm in 3 or fourth gear. Maintain the engine speed so that the tachometer value does not exceed 3000 rpm To achieve the result, use the brake pedal.
6
Pedal fuel supply to the end and check the indicators on the gauge. If the pressures are at odds with the documentation, perform adjustment of the turbine , or contact a specialized center.
Useful advice
During the test, follow the engine when detonation is detected or the tapping test should be stopped. Do not let the engine work at maximum speed, this can cause engine failure.

Remember that during this test the braking unit is exposed to excessive heat and load, for this reason, the test is carried out as quickly as possible. For continuous monitoring, you should set the pressure sensor from third-party companies producing accessories and equipment for turbochargers.
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