TROUBLESHOOTING COOLING SYSTEMS (ENGINE OVERHEATING)

The causes, indicators, and consequences of engine overheating are reviewed. A guide is provided for the home mechanic in diagnosing and correcting cooling system problems which lead to overheating: damaged fan belts; leaky hose connections, radiator core, or water pump shaft seals and gaskets; inoperable thermostat; radiator clogging; boiling of coolant in water jacket due to slush ice formation in radiator; coolant foaming, due to air entrapment; and combustion leaks into coolant. Tips are given on checking air-cooled engines; causes for overheating are listed. First-aid treatment for burns and scalds is included. "Unusual" overheating problems identified by American Motors, Ford, and General Motors are described. Many of these malfunctions are caused by incorrect, inoperative, defective, or missing components; factory service bulletins frequently pinpoint the causes.

  • Supplemental Notes:
    • At head of title: The Backyard Mechanic. See also HS-030 266.
  • Corporate Authors:

    US Air Force Inspection and Safety, Center

    Norton AFB, CA  United States  92409
  • Publication Date: 1980-9

Media Info

  • Features: References;
  • Pagination: p. 22-26
  • Serial:
    • Driver
    • Volume: 14
    • Issue Number: 4
    • Publisher: US Air Force Inspection and Safety, Center

Subject/Index Terms

Filing Info

  • Accession Number: 00382079
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: HS-030 490
  • Files: HSL, USDOT
  • Created Date: Mar 30 1984 12:00AM