Pages 1–5 (5 pages)

Model 4GC Description and Circuits

From the 1953 Oldsmobile Rochester 4GC Carburetor

Year
1953
Make
Oldsmobile, Rochester
Vehicle
Carburetors, Components and Systems, Passenger Cars
Type
Overhaul & Unit Repair, Service Manual
Models
Rochester Model 4GC four-barrel carburetor
Pages
15

How the Rochester 4GC works as two dual carburetors, with the float, idle (including idle vent), part throttle, power, accelerating pump and choke circuits explained with Fig. 8-94 to 8-99. The power valve opens below about 7 inches Hg manifold vacuum.

What this section covers

  • Primary and secondary sides
  • Float circuit
  • Idle circuit and idle vent
  • Part throttle circuit
  • Power circuit
  • Accelerating pump and choke circuits
Read from page 1
Loading manual…

Other manuals for this vehicle