Fuel pump — removal and installation (VAZ-2108)

To remove the pump, loosen the screw clamps of its inlet and outlet hoses, remove the hoses and seal their ends with process plugs. Unscrew the fastening nuts and remove the fuel pump from the engine. Remove the gaskets and the heat-insulating spacer with the pusher.

Before installing the pump, check the pusher protrusion. To install the pump correctly, use two of the three gaskets listed below: A — 0.27-0.33 mm; B - 0.70-0.80 mm; B — 1.10-1.30 mm. Installation is performed in the following order. Install the heat-insulating spacer, placing gasket A under it (figure 19), and on the plane in contact with the pump, place gasket B. Measure the size d (maximum tappet protrusion, established by slowly turning the crankshaft). If the size d is within 0.8-1.3 mm, the pump is fixed; if the size d is less than 0.8 mm, then instead of gasket B, a second gasket A is installed; if the dimension d is greater than 1.3 mm, then gasket B is replaced with gasket B. The dimension d is checked again and the pump is secured to the engine. Gasket A should always be under the heat-insulating spacer. Gaskets A, B and B are interchangeable with the corresponding gaskets of previous car models.