Table of contents: Fuel pump ↓ Checking the fuel supply pressure of… ↓
Fuel pump
The fuel pump is secured with two nuts through a heat-insulating gasket and a sealing ring. The pump body and cover are non-separable, i.e. the pump cannot be repaired and is replaced in case of failure.
Fuel pump parts: 1 - sealing ring; 2 - heat-insulating gasket; 3 - pump; 4 - accessories.
Checking the fuel supply pressure of the fuel pump
Connect the pressure gauge hoses to the fuel pump and carburetor.
Start the engine and measure the fuel supply pressure, which at an engine crankshaft speed of 2000 rpm should be within 0.20-0.25 kg/cm².
The pressure at the fuel pump outlet is not regulated. If the pressure drops below the permissible value, replace the fuel pump.
Text provided by the online resource: AudiManual