Using a Phillips screwdriver, loosen the clamps on the fuel inlet and outlet hoses.
We remove the hoses from the pump fittings. To prevent gasoline from leaking out, we plug the hoses with M8 bolts.
Using a 13 mm spanner, unscrew the two pump mounting nuts...
...and remove it from the studs.
(The text is copied from the online resource www.VAZbook.ru)
We remove the outer adjustment gasket from the studs,...
...a heat-insulating spacer with a pusher...
...and the second gasket, which we mark so as not to confuse it with the first one during assembly.
We install the new pump in the reverse order of removal. In this case, we install each gasket in its place.
For reliable operation of the fuel pump, periodically check and, if necessary, adjust the thickness of the outer adjustment gasket. To do this, turn the engine crankshaft so that the pusher protrudes to a minimum value.
After installing the heat-insulating spacer with both gaskets, the fuel pump drive pusher should protrude by 0.8–1.3 mm.
A 0.27–0.33 mm thick gasket must be installed between the cylinder block and the heat-insulating spacer. Outer gasket (between the spacer and the pump) is selected for the required amount of pusher protrusion. This gasket can be made independently by cutting it out of a sheet of paronite of the appropriate thickness.