Pages 29–37 (9 pages)

Component Identification Views

From the 1973 Rochester 4M Quadrajet Carburetor Illustrations (Section 4M)

Year
1973
Models
Rochester 4M Quadrajet four-barrel carburetor (general, not by vehicle)
Pages
51

Labeled photographs of the carburetor: the assembled unit with air horn screws, vacuum connections, pump lever, idle speed screw and mixture screws, and top views of the air horn and bowl showing main well air bleed tubes, secondary fuel discharge nozzles, air valve torsion spring, float, plastic filler, baffle plates and hot idle compensator. Several views repeat, and the power piston and primary metering rod assembly appears with its tension spring and plastic retainer.

What this section covers

  • Assembled carburetor with linkage and connections
  • Air horn: air valve and bleed tubes
  • Bowl: float, fuel inlet nut and filter
  • Power piston assemblies A to D
  • Primary metering rod, tension spring and retainer
Loading manual…