For the Pierburg 1B3 carburetor, check the serviceability of the electromagnetic valve (see Fig. Carburetor parts 1B3) it is possible by applying 12 V to the valve terminal and then connecting its body to the "ground". The valve pin should retract by 3-4 mm. Check the gap between the end of the tube and the surface of the air damper, it should be 0.7-1.3 mm.
Installing the fuel pipe of the Pierburg 1B3 carburetor
- a - the gap between the end of the tube and the surface of the air damper
When installing emulsion tubes on a Keihin carburetor, pay attention to the fact that the first chamber tube has holes on top, and the second chamber tube has holes on the bottom.
When installing the Pierburg 2E2 carburetor, the accelerator pump nozzle must be positioned so that the fuel falls into the recess.
Installing the accelerator pump sprayer of the Pierburg 2E2 carburetor
Warning: The position of the float in the float chamber of the carburetors is not adjustable. If the fuel level deviates from the nominal level, check the tightness of the float and the condition of the needle valve. Replace faulty parts.
The text is based on materials from the website AudiManual.ru