6.1.4. Removal of pollution from a power supply system of the diesel engine

Cause of infringement of passability of the fuel filter, decrease in the power developed by the engine, emergence on internal surfaces of components of a power supply system of a black deposit or slime, etc. of violations corrosion development, or education in system of colony of microorganisms can be. Microorganisms usually arise in the moisture which is contained in fuel if the last does not leave from a tank in time. Products of their activity can cause development of corrosion of metal surfaces of the highway.

In a similar situation carrying out full cleaning of system is required. If cleaning is carried out carefully, the probability of repeated emergence of microorganisms will be minimized.


  1. Completely empty and remove the fuel tank.

The merged fuel should not be reused. Carefully wash up it, wash out a tank pure diesel fuel from within.

  1. Highlighting itself a small lamp, make sure of absoluteness of purity of internal walls of a tank. If completely it is not possible to remove all deposits by washing, resort to steam cleaning, - having achieved satisfactory result, once again wash out a tank pure diesel fuel.
  2. Disconnect from TNVD of the line of giving and return of fuel, remove the fuel filter and wash out fuel-supply lines pure fuel.
  3. Replace the fuel filter, install into place a tank, restore initial connection of fuel lines and fill in pure diesel fuel in a tank. Remove air from system (address the Section Removal of Air from a fuel path of the diesel engine). At the first operational phase of the car make sure of completeness of maintenance of a power supply system.

Corrosion products, as a rule, do not get to TNVD, being late in the fuel filter. If, nevertheless, there is a suspicion that the pump is polluted, it needs to be cleared also carefully. Do not make attempts of independent holding this procedure, - charge its performance to specialists of car service.

The moisture which is present at atmospheric air can be condensed on walls of the fuel tank from where it gets into the highway of a power supply system. Capacities for storage of diesel fuel (including both big tanks, and the fuel tanks of cars) are more subject to moisture education, than capacity for gasoline storage as pressure of vapors of the last is much higher. For the purpose of minimization of hit of condensate in fuel, constantly you hold a tank full and try to avoid long idle times of the vehicle.

In shops of automobile accessories it is always possible to buy the special additives serving for prevention of emergence of microorganisms. Producers of high-quality fuel add additive of this sort to diesel fuel.

At identification in fuel of signs of development of microorganisms, inform on this fact of the owner of gas station which regular customer you are and, at least for some time, use services of other station.