Pages 34–37 (4 pages)

Lighting

From the 1943 United Motors War-Time Service Handbook

Restoring lights without new parts at the 35 mph speed limit. It explains the factors in good lighting with a lighting diagram, checks for poor lighting, aiming and focusing, polishing tarnished reflectors, reading blackened bulbs as a sign of high voltage, voltmeter tests for low or high voltage at the headlamp, and repairing loose wiring and lamp ground connections.

Read this section free, starting at page 34

What this section covers

  • Lighting diagram and factors in good lighting
  • Checks for poor lighting
  • Aiming and focusing
  • Reflectors and defective bulbs
  • Low and high voltage at the lamp socket
  • Wiring, lighting switch and lamp ground
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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