Chevrolet Chevette/1000 1976-1988 Repair Guide

Component Replacement

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REMOVAL & INSTALLATION





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Fig. Fig. 1Detach the ignition switch electrical connector from the ignition coil



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Fig. Fig. 2Disconnect the distributor lead from the coil, then remove the coil from the vehicle



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Fig. Fig. 3Tag the spark plug wires before disconnecting them from the distributor cap



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Fig. Fig. 4Unfasten the cap retaining screws, then ...



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Fig. Fig. 5... remove the cap from the distributor



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Fig. Fig. 6Use a felt tip pen to matchmark the position of the rotor



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Fig. Fig. 7Unfasten the two retaining nuts, then ...



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Fig. Fig. 8... remove the rotor from the distributor

Integral Ignition Coil
  1. Disconnect the negative battery cable. Disconnect the feed and module wire terminal connectors from the distributor cap.
  2.  
  3. Remove the ignition set retainer, if equipped.
  4.  
  5. Remove the 4 coil cover-to-distributor cap screws.
  6.  
  7. Using a blunt drift, press the coil wire spade terminals up out of the distributor cap.
  8.  
  9. Lift the coil up out of the distributor cap.
  10.  
  11. Remove and clean the coil spring, rubber seal washer and coil cavity of the distributor cap.
  12.  

To install:

  1. Coat the rubber seal with a dielectric lubricant furnished in the replacement ignition coil package.
  2.  
  3. Install the coil assembly in the distributor cap, along with the coil spring.
  4.  
  5. Connect the coil wire spade terminals to their respective places in the distributor housing.
  6.  
  7. Install the coil cap and retaining screws. Install the ignition set retainer, if equipped.
  8.  
  9. Connect the distributor cap electrical connections. Connect the negative battery cable.
  10.  

Remote Mounted Ignition Coil
  1. Disconnect the negative battery cable.
  2.  
  3. If necessary, remove the coil cover.
  4.  
  5. Detach the ignition switch-to-coil lead from the coil.
  6.  
  7. Disconnect the coil-to-distributor leads from the coil.
  8.  
  9. Unfasten the retaining screws, then remove the ignition coil.
  10.  
  11. Installation is the reverse of the removal procedure.
  12.  

Distributor Cap
  1. Disconnect the negative battery cable. 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, or unfasten the screws & lift the cap off, as applicable.
  6.  
  7. If necessary, remove the 4 coil cover screws and cover.
  8.  
  9. If necessary, using a finger or a blunt drift, push the spade terminals up out of the distributor cap.
  10.  
  11. If necessary, remove all 4 coil screws and lift the coil, coil spring and rubber seal washer out of the cap coil cavity.
  12.  
  13. Using a new distributor cap, reverse the above procedure to assemble being sure to clean and lubricate the rubber seal washer with dielectric lubricant.
  14.  

Rotor
  1. Disconnect the negative battery cable. Disconnect the feed and module wire connector from the distributor.
  2.  
  3. Remove the distributor cap.
  4.  
  5. Matching the position of the rotor.
  6.  
  7. Remove the two rotor attaching screws and rotor.
  8.  
  9. Reverse the above procedure to install.
  10.  

Vacuum Advance
1976-80 VEHICLES
  1. Disconnect the negative battery cable. 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 above procedure to install.
  8.  

Module
  1. Disconnect the negative battery cable. Remove the distributor cap and rotor as previously described.
  2.  
  3. Disconnect 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 above procedure to install.
  8.  

HEI SYSTEM TACHOMETER HOOKUP





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Fig. Fig. 9HEI system tachometer hookup. Note that this is a representative schematic and may not depict actual component location

Connect the positive tachometer lead to the coil terminal that is connected to the distributor. Connect the negative lead to a good ground. Please note, however, that some tachometers must connect to the coil terminal and the battery positive terminal. Check the tachometer manufacturer's instructions to make sure it is compatable with the HEI system.


WARNING
Never ground the tach terminal as the HEI electronic module could be damaged.

 
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