Advice 1: How to check injector diesel

The simplicity and reliability of the dieseltion engine can be operation for quite a long time without disturbing the owner of the violation of the regulations in the fuel system, which consists of: the transfer pump low pressure fuel high pressure pump and injectors. The last components of the fuel injection system are the weakest link in the chain. And no wonder, after all the nozzles have the greatest load during operation of the motor.
How to check injector diesel
You will need
  • - electronic scanner,
  • - stand for testing and adjusting of fuel equipment.
Instruction
1
Diesel engines of old were equipped with a fuel high-pressure pump (injection pump), in which the number of sections is directly dependent on the number of cylinders in the engine. Each section of fuel injection pump provided fuel injector of a specific cylinder.
2
With the introduction of electronic control injection system, new engine (CDI) were equipped with motor-jets, the opening of the atomizer which is a command processor. So the masters no longer need to install the ignition timing and the engine became much easier to maintain.
3
Symptoms that indicate disturbances in the fuel supply system, is the emergence of black smoke in the exhaust. Increased smoke is a result of incomplete combustion of the fuel mixture supplied to the cylinder injector.
4
To proceed with the repair after the first of such signs, in any case impossible. Therefore, in the shortest possible time, the vehicle needs to visit the dealership and have diagnostics. During scanning the service engineer will identify the problem using the tester.
5
If the failure occurred in the electrical part of the motor-injector, which changes the stepper motor. But in those cases when the electronic components operate normally and smoothly, all injectors removed from the engine and delivered to the repair of the fuel equipment, which will check on booth mechanical part and, in case of detection of faulty nozzles, replace them.
6
From now on, the motorist should replace the fuel and air filters, and the car will be able to overcome more than one hundred thousand kilometers without repair.

Advice 2: How to check glow plug of a diesel engine

Glow plugs are used in diesel engines to launch in low temperatures. Checking spark can be performed in two ways: visual and with a closure of the electric circuit. Broken candle needs to be replaced.
There are 2 ways to check the glow plug
The working process of diesel automobile engine has some specific features that determine the nature of his work at low temperatures. These features are manifested in the deterioration of fuel atomization, the viscosity of which increases as a result of lower temperature. To ensure a start in cold season of the modern diesel engines are equipped with glow plugs. Candles carry out a preliminary heating of the air inside the cylinder, which enables engine starting at low ambient temperatures.

To ensure trouble-free operation of the diesel engine in the winter suggests a regular check of the glow plugs. Testing candles is a standard procedure in the comprehensive health check of diesel engine carried out by the specialists of the service stations of cars. In the presence of certain knowledge and skills, check the glow plug, the car owner can perform on their own.

Test a glow plug of a diesel engine can be performed in two ways – test voltage a closed circuit and a visual method.

Check voltage



As a tool to control the use of a voltmeter or an ohmmeter. In the absence of the instrument testing can be performed using led lamp, one lead wire which is connected with the positive pole of the battery and the other is in turn connected to each of the candles.

Check visual method



Before checking turned the nozzle of one of the cylinders, so that the resulting hole could be seen the glow plug. This method involves two people. One reviewer from the driver's seat turns the key in the ignition, while the other observed the behavior of the glow plugs. If the candle is serviceable, it should glow red hot.

This method is not applicable to all models of cars, as in some engines, the spark is not visible through the hole of the nozzle. In this case you should use the first method.

If the candle is difficult to eversion, the place of its planting, gently soak with kerosene or solvent. After the end of the test should be installed, pre-lubricated the threads with grease. If during testing will be identified inefficient candles, they must be replaced.
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