Section 6B · Pages 251–268 (18 pages)

Engine Fuel: Rochester 4GC

From the 1955 Pontiac Shop Manual

The Rochester 4GC four-jet carburetor for the 1955 V-8, essentially two 2-jet carburetors in one casting, with primary and secondary sides. It covers the float, idle, part-throttle, power, pump and choke systems, the balance passage between float bowls, adjustments, overhaul and testing.

Read this section free, starting at page 251

What this section covers

  • Primary and secondary sides
  • Float and idle systems
  • Pump, power and choke systems
  • Fast idle cam
  • Overhaul and adjustments
Year
1955
Make
Pontiac
Vehicle
Passenger Cars
Type
Service Manual
Models
Star Chief (Series 28), Chieftain Eight Seventy 870 and Eight Sixty 860 (Series 27)
Publication
S-5504
Pages
400

What’s inside

Shop manual

  1. 00General Informationpp. 1–9
  2. 0General Lubricationpp. 10–17
  3. 1BodySerial number and body number plate locations and decoding, with notes on body shimming and adjustments; full body service is referred to the Fisher Body Service News.pp. 18–19
  4. 2FrameFrame checking chart with diagonal and point-to-point frame dimensions for Series 27 and 28 body styles, including Catalina and convertible.pp. 20–22
  5. 3Front Suspensionpp. 23–40
  6. 4Rear Suspension and Propeller Shaftpp. 41–75
  7. 5Brakespp. 76–89
  8. 5Power Brakes: Bendixpp. 90–105
  9. 5Power Brakes: Morainepp. 106–127
  10. 6Engine Mechanicalpp. 128–180
  11. 6AEngine Cooling and Lubricationpp. 181–190
  12. 6BEngine Fuel: Heat Control, Air Cleaner and Carter WGDpp. 191–210
  13. 6BEngine Fuel: Carter WCFB Four-Barrelpp. 211–228
  14. 6BEngine Fuel: Fuel and Vacuum Pumppp. 229–233
  15. 6BEngine Fuel: Rochester 2GCpp. 234–250
  16. 6BEngine Fuel: Rochester 4GCpp. 251–268
  17. 6CEngine Clutchpp. 269–275
  18. 7Transmission and Gearshift Controlpp. 276–296
  19. 9Steeringpp. 297–306
  20. 9Power Steering Gear and Pumppp. 307–327
  21. 10Wheels and Tirespp. 328–334
  22. 11Chassis Sheet MetalHood, fender, radiator support and bumper-grille adjustments, with removal of fenders, bumper and grille, hood hinges and springs, and battery support shimming.pp. 335–336
  23. 12Electrical and Instrumentspp. 337–385
  24. 14Accessoriespp. 386–393
  25. IndexAlphabetical subject index to the whole manual, listing topics by section page number (for example 6B-39 or 12-22).pp. 394–400

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