Section 6 · Pages 268–285 (18 pages)

Cooling System

From the 1952–1954 GMC Truck Models 620–980 Maintenance Manual

Pressure cooling systems on gasoline and diesel models: circulation, filling and draining, cleaning, flushing and corrosion prevention, exhaust gas leakage tests, water temperature indicators and engine overheat alarm, fan belts, then radiator, radiator shutters, shutter thermostat and air filter, and engine thermostats. Specifications give thermostat and pressure valve settings, cooling capacities and an antifreeze chart.

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What this section covers

  • Gasoline and diesel coolant circulation
  • Filling, draining, cleaning and flushing
  • Water temperature indicator and overheat alarm
  • Radiator and overflow tank
  • Radiator shutters and shutter thermostat
  • Cooling capacities and antifreeze chart
Year
1952, 1953, 1954
Make
GMC
Vehicle
Heavy Duty Trucks, Trucks
Type
Service Manual
Models
Series 620, 630, 660, 670, 740, 750, 850, 920, 930, 950, 970, 980 (gasoline and diesel, incl. D, F, W prefixes)
Publication
Form X5404
Pages
576

What’s inside

Front matter

  1. Introduction, Model Data and IndexesCover, warranty, title page with the Quick Index tabs, how to use the manual, the model data table of series, wheelbases and engine types for 1952–1954, serial number and parts identification plate locations, the section index and the alphabetical index.pp. 1–10

Maintenance manual

  1. 1Front Axlepp. 11–22
  2. 2Rear Axlepp. 23–156
  3. 3Cab and Bodypp. 157–180
  4. 4Brakespp. 181–256
  5. 5Clutchpp. 257–267
  6. 6Cooling Systempp. 268–285
  7. 7Electricalpp. 286–342
  8. 8Enginepp. 343–384
  9. 11Framepp. 385–388
  10. 12Fuel Systempp. 389–422
  11. 13Lubricationpp. 423–448
  12. 16Steeringpp. 449–476
  13. 17Transmissionspp. 477–552
  14. 18Propeller Shaftspp. 553–560
  15. 19Hubs, Wheels and Tirespp. 561–572

Special tools

  1. Special Toolspp. 573–576

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