5.14.7. Check and replacement of the regulator of pressure of fuel

Serviceability of the regulator is determined by fuel pressure in a stage of nozzles on the working engine.

1. Connect the manometer to the toplivopodayushchy highway (see. "Check of pressure in a power supply system").

2. Launch the engine. During the operation of the engine on the idling mode pressure in a power supply system has to be about 300 kPa (3,0 ^kgfs/cm2).

3. Disconnect a vacuum hose from pressure regulator. Pressure on the manometer has to increase by 20–70 kPa (0,2–0,7 ^kgfs/cm2). If pressure on the mode of idling is lower than norm and does not increase at a detachment of a vacuum hose, replace pressure regulator.

4. If during check of the regulator of pressure the vacuum hose was connected to it again, disconnect it.

5. Squeeze a clamp of a hose of discharge of fuel …	6. … also disconnect a hose from the regulator union.

7. Turn out two screws of fastening of the regulator to a stage of nozzles …

    

NOTE For descriptive reasons removal of the regulator is shown on the removed stage.

8. … also remove the regulator.	9. Remove a sealing ring from the regulator case.

PREVENTION Replace a sealing ring at each removal of the regulator new.

10. In need of replacement of a clamp of a drain tube hook it the screw-driver …	11. … also remove a clamp from the regulator union.

12. Install the regulator as it should be, the return to removal, having oiled its sealing ring engine.