GM Camaro 1982-1992 Repair Guide

Component Replacement

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CAUTION
When handling secondary spark plug leads with the engine running or starting, insulated pliers must be used and care exercised to prevent a possible electrical shock.

HEI SYSTEM



Ignition Coil
EXTERNALLY MOUNTED

See Figures 1, 2 and 3

  1. Disconnect the negative battery cable.
  2.  
  3. Disconnect the ignition coil wire from the coil. Do so by pulling on the boot of the wire while twisting it.
  4.  
  5. Disconnect the harness connector from the ignition coil.
  6.  
  7. Remove the coil mounting screws and the ignition coil. If necessary, drill out and remove the rivets holding the coil to the bracket.
  8.  

To install:
  1. Place the ignition coil in position on the mounting bracket and install the mounting screws.
  2.  
  3. Reconnect the harness connectors to the ignition coil. Confirm that the harness connectors are firmly attached to the coil.
  4.  
  5. Install the secondary coil wire to the coil tower.
  6.  
  7. Connect the negative battery cable.
  8.  



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Fig. Fig. 1: Distributor with external ignition coil



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Fig. Fig. 2: Release the locking tab and remove the harness connector from the coil



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Fig. Fig. 3: With the mounting screw(s) removed, lift the coil from the engine compartment

INTERNALLY MOUNTED

See Figure 4

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the cover and wire retainer.
  4.  
  5. Disconnect the battery feed wire and coil connections from the cap.
  6.  
  7. Remove the coil cover attaching screws and cover.
  8.  
  9. Remove the coil attaching screws and lift the coil assembly from the distributor cap.
  10.  

To install:
  1. Position the ignition coil and the leads into the cap. Be certain that the resistor brush, ground lead and seal are properly positioned.
  2.  
  3. Install the mounting screws.
  4.  
  5. Install the coil cover and retainers. Reconnect the feed wires and coil connections to the cap.
  6.  
  7. Install the cover and wire retainer. Reconnect the negative battery cable.
  8.  



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Fig. Fig. 4: Distributor and related components with internal ignition coil

Distributor Cap

See Figures 5 and 6

  1. If removing the ignition wires at the cap, take a moment to label the spark plug wire positioning for each cylinder, at each tower. This will avoid improper wire placement during assembly.
  2.  
  3. Disconnect the ignition switch wire from the distributor cap. Also disconnect the tachometer wire, if so equipped.
  4.  
  5. Release the coil connectors from the cap.
  6.  
  7. Remove the distributor cap by turning the four latches (the L4 distributor has 2 latches) counterclockwise.
  8.  
  9. Remove the cap. Installation is the reverse of removal. Be sure you get the ignition and tachometer wires connected to the correct terminals.
  10.  



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Fig. Fig. 5: Release the retainers on the distributor cap by turning them counterclockwise



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Fig. Fig. 6: Removing the distributor cap. Notice that all towers on cap are labeled with the corresponding engine cylinder number.

Rotor
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the distributor cap.
  4.  
  5. Unscrew the two rotor attaching screws and then lift off the rotor.
  6.  
  7. For installation, make sure the rotor is positioned in the correct direction and tighten the retaining screws.
  8.  

Capacitor

The capacitor, if equipped, is part of the ignition coil wire harness assembly. Since the capacitor is used only for radio noise suppression, it will seldom need replacement.

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the distributor cap and rotor.
  4.  
  5. Remove the capacitor attaching screws and unplug the connector from the module. Remove the module.
  6.  

To install:
  1. Plug the connector into the capacitor. Install the capacitor and secure in place using the mounting screws. Be sure the ground lead is under the screw.
  2.  
  3. Install the rotor and distributor cap.
  4.  
  5. Connect the negative battery cable.
  6.  

Module

See Figure 7

It is not necessary to remove the distributor from the vehicle.

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the distributor cap, rotor and pickup coil.
  4.  
  5. Remove the 2 module attaching screws and lift the module up. Remove the leads from the module, observing the colors on each lead. These leads can not be interchanged.
  6.  

If the module is to be reused, do not wipe the grease from the module or the distributor base. If a new module is to be installed, a package of silicone grease will be included with it. Spread the grease on the metal face of the module and on the distributor base where the module seats. This grease is necessary for module cooling.

To install:
  1. Install the module, tighten the retaining screws and connect the wiring.
  2.  
  3. Install the distributor rotor and distributor cap.
  4.  
  5. Connect the negative battery cable.
  6.  



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Fig. Fig. 7: Ignition coil module mounting - always coat the base with silicone dielectric grease.

Pickup Coil

See Figure 8



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Fig. Fig. 8: Pickup coil and related components - distributor with external coil

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the distributor cap and then the rotor.
  4.  
  5. Remove 3 screws from the magnetic shield. Remove the magnetic shield and C-washer. Remove the magnet, pole piece and pickup coil.
  6.  
  7. Installation is the reverse of the removal procedure.
  8.  

 
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