Diesel engines operate under high operating pressure, several times higher than what happens in gasoline counterparts. That is why for their trouble-free operation, the high accuracy of the composition of the mixture, as well as the instant of injection and the quality of spraying, are of great importance. Even seemingly simple repair of a modern diesel engine requires the use of diagnostic equipment, after which bench tests are mandatory. Otherwise, it is highly likely that poor-quality repairs will lead to more serious damage.
Professionals implementing , they say that most often malfunctions occur in the fuel supply systems and its injection into the combustion chambers. Therefore, mainly engines require adjustment or repair of fuel equipment. Any diesel car service should be equipped with a stand for its diagnosis and adjustment. Also in the workshop should be a diesel compressor and smoke meter. After the diagnosis, during which any deviations from the norm in the engine are detected, the operation of pumps and nozzles is tested, the performance of the high-pressure fuel pump and the rhythm of fuel supply are taken into account.
As a prevention of breakdowns, experts recommend that a number of simple instructions be followed. Firstly, it is not recommended to work in high-speed modes for a long time. Secondly, it is necessary to maintain the intervals of heating and cooling recommended by engine manufacturers. Third, do not replace the coolant with water. And finally, if possible, use only high quality fuel. Pouring low quality fuel into the tank, you can get a serious problem - persistent chemical deposits will appear on the nozzles and elements of the fuel system.
The first sign that you have to or delphi, there will be the fact that the car will dramatically increase fuel consumption. You should also pay attention to engine power, if it has decreased - this is the second "bell", another point is the instability of the engine in idle mode. Having noticed one of these signs, do not wait for the breakdown, but immediately go to the diesel car service.
Chemical deposits from nozzles in car services are now removed in three ways: washing with a cleaning additive, pouring a washing mixture into the tank, followed by a run through the fuel system, and ultrasonic cleaning.