Section 6Y · Pages 135–154 (20 pages)

Engine Electrical

From the 1975 Chevrolet Light Truck Service Overhaul Supplement

Engine electrical changes for 1975, mainly the High Energy Ignition (HEI) system. The 10-SI generator gains a 40-ohm resistor in the warning indicator circuit and the starter solenoid loses its R terminal; the rest of the section covers the HEI coil, module and distributor, removal, disassembly and installation, and step-by-step diagnosis with test light, ohmmeter and voltmeter.

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What this section covers

  • 10-SI generator warning circuit resistor
  • Starter solenoid R terminal deletion
  • HEI coil, module and pick-up
  • HEI distributor removal, overhaul and installation
  • HEI diagnosis, step by step
Year
1975
Make
Chevrolet
Vehicle
C/K Trucks, G Vans, Light Duty Trucks, P Forward Control, Trucks
Type
Overhaul & Unit Repair, Service Manual, Supplement
Models
C, K, G, P 10–30
Publication
ST-330-75
Pages
324

What’s inside

Service supplement

  1. 0General Information and Lubricationpp. 7–28
  2. 1AHeater and Air Conditioningpp. 29–32
  3. 1BBodypp. 33–36
  4. 2FrameFrame dimension charts for the 1975 C, K and P models, listing the reference dimensions model by model.pp. 37–40
  5. 4Rear Suspension and Rear Axlepp. 41–46
  6. 5Brakespp. 47–59
  7. 6Engine Mechanicalpp. 60–68
  8. 6MEngine Fuelpp. 69–130
  9. 6TEmission Control Systemspp. 131–134
  10. 6YEngine Electricalpp. 135–154
  11. 7AAutomatic Transmissionpp. 155–160
  12. 7MClutches and Manual Transmissionspp. 161–166
  13. 8Fuel Tank and Exhaust Systempp. 167–174
  14. 9Steeringpp. 175–182
  15. 10Wheels and Tirespp. 183–188
  16. 11Chassis Sheet MetalCK-series hood lock assembly, carburetor outside air inlet snorkels, rear fender and running board.pp. 189–190
  17. 12Electrical: Body and Chassispp. 191–196
  18. 13Radiator and GrilleRadiator replacement, grille service and the coolant recovery system.pp. 197–198
  19. 15Accessories (Cruise Master)pp. 199–210

Overhaul supplement

  1. 1Air Conditioning Compressor Overhaulpp. 213–226
  2. 4Rear Axle Differential OverhaulAxle application chart by model, type, capacity and ring gear size, and the one 1975 change, in the Dana 10-1/2 inch ring gear differential.pp. 227–228
  3. 5Brake Booster Overhaulpp. 229–234
  4. 6Engine Repair ProceduresIncreased piston-to-bore clearance for 1975 and camshaft alignment checking with V-blocks.pp. 235–236
  5. 6MCarburetor Overhaulpp. 237–258
  6. 6YStarting Motor and GeneratorStarting motor and solenoid changes (R terminal removed because of High Energy Ignition) and the 10-SI series 100 type generator.pp. 259–260
  7. 7AAutomatic Transmission Overhaulpp. 261–272
  8. 7MManual Transmission and Transfer Case Overhaulpp. 273–282
  9. 9Power Steering Pump OverhaulPower steering pump pulley removal and installation with tools J-25034 and J-25033.pp. 283–284

Specifications

  1. Specificationspp. 285–324

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