5.20.5. Removal, repair and installation of the fuel pump

If engine capacity falls, howlings are periodically heard or there was an increased noise during the operation of the fuel pump, then, most likely, the fuel pump failed.
At first check pressure in a fuel supply system (see. "Check of pressure of fuel in a power supply system").
If pressure in a power supply system is higher than 400 kPa (4,0 kgfs/cm2), then pressure regulator installed in the module of the fuel pump is faulty and it needs to be replaced (see. "Check and replacement of the regulator of pressure of fuel").
If pressure in a power supply system is lower than 300 kPa (3,0 kgfs/cm2), replace the fuel filter (see. "Replacement of the fuel filter").
If it does not help, try to remove the pump and to wash out a grid of its receiver. If in this case pressure does not increase, the fuel pump needs to be replaced.
It will be required to you: keys "on 8", "on 17", the screw-driver, a drift, the hammer.
1. Reduce pressure in a power supply system (see. "Pressure decrease in a power supply system"), without establishing a hatch cover over the fuel pump back.
2. Turn off nuts of pipelines of giving and discharge …
3. … also disconnect pipelines from an electrogasoline pump.

Note
At connection of pipelines replace their sealing rings new.

4. Turn off nuts of fastening of the pump to the fuel tank …
5. … remove a clamping ring …
6. … also take out the fuel pump together with its sealing ring. The ring which cracked, lost elasticity needs to be replaced.
7. If at removal of the pump the glass store remained in the fuel tank, take it.

Note
Before the return installation of the pump record a glass store on the case plastic percussion caps.

8. For replacement or cleaning of the fuel filter hook its basis the pointed tool...
9.... also remove the filter from a pump housing, overcoming resistance of a spring lock washer.
10. Before the return installation of the filter take a lock washer, correct its passatizham and install in the filter case.
11. Disconnect a block of a plait of wires from the pump electric motor.
12. Press a plastic clamp of the pump …
13. … also take a clamp …
14. … then take out the fuel pump …
15. … and, having hooked the screw-driver, pick up from it the phone of supply of fuel in system.
16. You carry out installation of the electric motor of the fuel pump upside-down. Previously take an electric motor casing from the fuel pump and put on it the electric motor.
17. For replacement of the sensor of the index of level of fuel hook and disconnect blocks of plaits of wires from an arm …
18. … and pump electric motor …
19. … turn out two screws of its fastening to the fuel pump …
20. … also remove the sensor from the fuel pump.
21. Install the sensor of the index of level of fuel as it should be, the return to removal.