Section 6A · Pages 13–17 (5 pages)

Gasoline Engines

From the 1972 Chevrolet Series 40–60 Truck Chassis Service Manual Supplement

Engine maintenance changes: the compression test standard (no cylinder below 70% of the highest), air cleaner service intervals, positive crankcase ventilation checks, the flywheel housing adapter, and tune-up charts for the in-line engines (250 and 292) and V8 engines.

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What this section covers

  • Engine compression test
  • Air cleaner servicing
  • PCV system checks
  • In-line engine tune-up chart
  • V8 tune-up chart
Year
1972
Make
Chevrolet
Vehicle
Medium Duty Trucks, Trucks
Type
Service Manual, Supplement
Models
Series 40–60
Publication
ST-331-72
Pages
86

What’s inside

Service supplement

  1. 0LubricationEngine oil change intervals and recommendations, engine oil filter, transmission capacity chart including the SP6041 and SP7041 auxiliary transmissions, power steering fluid and carburetor air cleaner element service.pp. 3–4
  2. 3Front Suspensionpp. 5–8
  3. 4Rear Axles and SuspensionVacuum shift system maintenance and parking procedure for two- and three-speed axles, and removal and installation of the Hendrickson tandem rear suspension equalizing beams.pp. 9–10
  4. 5BrakesDual vacuum gauges on dual (split) brake systems for school buses and other trucks, and revised air line torques and breather and filter assemblies for air brakes.pp. 11–12
  5. 6AGasoline Enginespp. 13–17
  6. 6DEngine MountingsEngine cushion, mounting bolt, bracket bolt and nut torque charts that supplement the engine mountings section of ST-331-71.pp. 18–19
  7. 6KEngine Cooling SystemCooling system general maintenance additions, including pressure testing of the system and filler cap, with radiator and surge tank references.pp. 20–22
  8. 6MFuel System: Gasoline Enginespp. 23–36
  9. 6TAir Compressors and GovernorsChanges to air compressor and governor service from ST-331-71, with a governor adjustment chart giving cut-in pressures by compressor and governor model.pp. 37–38
  10. 6YEngine Electricalpp. 39–46
  11. 7Transmissions and Clutchespp. 47–54
  12. 9Steering Systempp. 55–58
  13. 10Wheels and Tirespp. 59–80
  14. 11Sheet MetalHood alignment blocks, added to the sheet metal information in ST-331-71.pp. 81–81
  15. 12Chassis Electrical and InstrumentsChanges to chassis electrical, instruments and gauges from ST-331-71.pp. 82–83
  16. IndexAlphabetical subject index with page numbers.pp. 84–86

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