3.19. Check of a condition of components of a power supply system (each 24 000 km of a run or time in 12 months)

It is worth to remember that gasoline is flammable liquid in the highest measure – during the work with components of a power supply system observe all taken measures of fire safety. You do not smoke and do not approach the venue of works with naked flame or the carrying unprotected by the lamp shade. You do not make service of system in the room equipped with the heating devices using natural gas and equipped with a control torch (such as vodogre and dryers for clothes). Do not forget that gasoline is among the cancerogenic substances promoting development of cancer – try not to allow hits of fuel on open parts of the body – use protective rubber gloves, at casual unforeseen contact carefully wash out hands warm water with soap. Immediately collect the spilled fuel and do not put the rags impregnated with fuel and lubricants near sources of naked flame. Remember that the power supply system of the models equipped with injection of fuel constantly is under pressure. Before starting a detachment of fuel lines, dump residual pressure in system (for more details see the Head of the Power supply system and release). At service of components of a power supply system put on goggles. Constantly hold near at hand the class B fire extinguisher!


 PERFORMANCE ORDER

1. At emergence in interior of the car of a smell of gasoline during the movement or after the long parking in the open sun it is necessary to examine all components of a power supply system immediately attentively.
2. Uncover a jellied mouth of the fuel tank and check it for existence of damages and traces of corrosion. On all perimeter of laying there has to undergo the continuous trace of dense pressing it to a tank mouth. In case of detection of defects replace a laying/cover.
3. Check lines of giving and return of fuel for existence of cracks, cuts and other damages. Check reliability of delay in nipple connections of metal lines and collars of fastening of fuel hoses.

All models considered in the present manual are equipped with system of injection of fuel, and therefore before disuniting fuel lines or to remove any components it is necessary to dump residual pressure in system (see the Head of the Power supply system and release).


4. Whenever possible examine injection injectors on existence of traces of leak of fuel. In case of need replace the damaged sealing rings (see the Head of the Power supply system and release).
5. As power supply systems, many of components, – such as fuel tank and part of fuel pipes – are located under the car, for performance of check of their state it is necessary to lift the vehicle, having hung out it on the winch, having tired out on a platform, or having established on props. Take care of reliability of fixing of the car in the lifted situation.

6. Check the fuel tank and its jellied mouth for existence of punctures, cracks and other damages. Pay special attention to survey of the place of a joint of a mouth with a tank. Sometimes rubber of a mouth begins to pass fuel owing to weakening of fixing collars, or as a result of material aging (see an accompanying illustration). Here only those from possible problems which diagnostics and elimination of the reasons lies within qualification of the average amateur mechanic are listed.


Do not make attempt of independent repair of the fuel tank at all (except for replacement of its rubber components) – the contact contained even in carefully aired tank of residual fuel evaporations with a torch of a gas torch or any other source of an open flame can cause their detonation!


7. Attentively examine all rubber hoses and metal tubes of fuel lines going from a gasoline tank (see an accompanying illustration). Check a condition of material of tubes/hoses and reliability of fastening of all nipple connections. Also check the fuel pipes going to system of injection of fuel. Make necessary repair, replace defective components (see the Head of the Power supply system and release).

8. Components of system of catching of fuel evaporations can also be a source of emergence of a smell of gasoline. The problem of system includes withdrawal of fuel evaporations from a gasoline tank a coal adsorber in which they accumulate during the parking of the car and from where after start of the engine are removed in the inlet pipeline for the purpose of burning in combustion chambers.

9. The most right symptom of malfunction in system of catching of fuel evaporations is emergence of a strong smell of gasoline in a motive compartment. Check a condition of the coal adsorber located in a compartment and hoses brought to it (see an accompanying illustration).