Pages 38–45 (8 pages)

Gauges

From the 1943 United Motors War-Time Service Handbook

Testing instruments before replacing them. It covers the fuel gauge dash unit check with a test tank unit (and why late-model gauges flutter), speedometer calibration at 30 mph with a stopwatch, pointer waving from kinked cables, grease in the speedometer head, inoperative speedometers, electric and non-electric heat indicator diagnosis, and why an oscillating ammeter is normal.

Read this section free, starting at page 38

What this section covers

  • Fuel gauge dash unit check
  • Speedometer speed check and cable kinks
  • Grease in speedometer head
  • Electric heat indicator (Thermo gauge) diagnosis
  • Non-electric heat indicator test
  • Ammeter test
Year
1943
Make
General Motors
Vehicle
Brakes, Components and Systems, Electrical and Instruments, Passenger Cars, Radios
Type
Service Manual
Models
All makes of cars in wartime service (not model-specific)
Pages
70

What’s inside

Handbook

  1. Title Page, Foreword and ContentsCover and title page, a dedication to the mechanics maintaining the nation's largest transportation system, a foreword on wartime driving conditions and repairing instead of replacing, and the alphabetical contents list.pp. 1–5
  2. Starting Systempp. 6–11
  3. Ignition Systempp. 12–19
  4. Charging Circuitpp. 20–27
  5. Fuel SystemPreliminary fuel supply checks, fuel pump valve and diaphragm service with a cut-open view of the pump, the vacuum section of combination pumps (wiper action, oil smoke), and the carburetor float level check.pp. 28–30
  6. Cooling SystemFinding and repairing radiator, gasket and water pump leaks, and curing overheating: fan belt, rust and scale flushing, hoses, thermostat testing, ignition timing, dragging brakes and tire pressure.pp. 31–33
  7. Lightingpp. 34–37
  8. Gaugespp. 38–45
  9. Bearingspp. 46–49
  10. Shock AbsorbersShock absorber noise checks, locating an inoperative unit by bouncing the car, wear and fluid leakage checks, and refilling arm-and-piston, Knee-Action double arm and tubular (airplane) type absorbers.pp. 50–52
  11. Brakespp. 53–63
  12. Radiopp. 64–68
  13. United Motors LinesList of United Motors product lines, from Delco batteries, radios and shock absorbers to AC fuel pumps, Harrison radiators, Guide lamps, Klaxon horns and Hyatt and New Departure bearings.pp. 69–70

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