GM Camaro 1967-1981 Repair Guide

Component Replacement

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INTEGRAL IGNITION COIL



See Figures 1 and 2

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Fig. Fig. 1: The HEI coil (except for 1975-77 6-cylinder models) is accessible by removing the four cover retaining screws



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Fig. Fig. 2: While the HEI coil is removed from the cap, make certain to inspect the rubber arc seal for damage-it is good practice to replace it whenever the coil is removed from the cap, so that it does not fail later (at a less convenient time)

  1. Disconnect the feed and module wire terminal connectors from the distributor cap.
  2.  
  3. Remove the ignition set retainer.
  4.  
  5. Remove the 4 coil cover-to-distributor cap screws and the coil cover.
  6.  
  7. Remove the 4 coil-to-distributor cap screws.
  8.  
  9. Using a blunt drift, press the coil wire spade terminals up out of distributor cap.
  10.  
  11. Lift the coil up out of the distributor cap.
  12.  
  13. Remove and clean the coil spring, rubber seal washer and coil cavity of the distributor cap.
  14.  
  15. Coat the rubber seal with a dielectric lubricant furnished in the replacement ignition coil package.
  16.  
  17. Reverse the removal procedures to install.
  18.  

DISTRIBUTOR CAP



See Figures 3 through 7

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Fig. Fig. 3: To remove the HEI distributor cap for inspection or access to the rotor, first detach the battery lead from the distributor ...



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Fig. Fig. 4: ... and label all of the spark plug cables



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Fig. Fig. 5: Only the cables from one engine bank (2, 4, 6 and 8 or 1, 3, 5 and 7) need to be removed-unless the cap is being replaced



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Fig. Fig. 6: Depress, then turn each of the four hold-down latches counterclockwise until they clear the distributor housing lower lip ...



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Fig. Fig. 7: ... and lift the cap off the distributor-position the cap aside

  1. Remove the feed and module wire terminal connectors from the distributor cap.
  2.  
  3. Remove the retainer and spark plug wires from the cap.
  4.  
  5. Depress and release the 4 distributor cap-to-housing retainers and lift off the cap assembly.
  6.  
  7. Remove the 4 coil cover screws and cover.
  8.  

  1. Using a finger or a blunt drift, push the spade terminals up out of the distributor cap.
  2.  
  3. Remove all 4 coil screws and lift the coil, coil spring and rubber seal washer out of the cap coil cavity.
  4.  
  5. Using a new distributor cap, reverse the removal procedures to assemble being sure to clean and lubricate the rubber seal washer with dielectric lubricant.
  6.  

ROTOR



See Figures 8, 9, 10 and 11

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Fig. Fig. 8: To remove the HEI rotor, loosen the two captive mounting screws completely and lift it off the distributor shaft



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Fig. Fig. 9: Inspect the carbon button contact surface (arrow) on the rotor for wear, corrosion or carbon ...



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Fig. Fig. 10: ... and inspect the carbon button (arrow) on the underside of the distributor cap for the same-replace the cap and rotor as a set if any damage is evident



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Fig. Fig. 11: The VECI label provides information, such as the ignition timing and idle speed procedure (A), the idle speed specifications (B), and the ignition timing specifications (C)

  1. Disconnect the feed and module wire connectors from the distributor.
  2.  
  3. Depress and release the 4 distributor cap-to-housing retainers and lift off the cap assembly.
  4.  
  5. Remove the two rotor attaching screws and rotor.
  6.  
  7. Reverse the removal procedure to install.
  8.  

VACUUM ADVANCE (1975-80)



  1. Remove the distributor cap and rotor as previously described.
  2.  
  3. Disconnect the vacuum hose from the vacuum advance unit.
  4.  
  5. Remove the two vacuum advance retaining screws, pull the advance unit outward, rotate and disengage the operating rod from its tang.
  6.  
  7. Reverse the removal procedure to install.
  8.  

MODULE



See Figure 12

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Fig. Fig. 12: When replacing the module, make certain to coat the mating surfaces with dielectric grease, which is usually included with the replacement kit

  1. Remove the distributor cap and rotor as previously described.
  2.  
  3. Detach the harness connector and pick-up coil spade connectors from the module. Be careful not to damage the wires when removing the connector.
  4.  
  5. Remove the two screws and module from the distributor housing.
  6.  
  7. Coat the bottom of the new module with dielectric lubricant supplied with the new module. Reverse the removal procedure to install.
  8.  

 
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