GM Full-Size Trucks 1970-1979 Repair Guide

Distributor

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REMOVAL & INSTALLATION



1975-79 Vehicles

See Figures 1, 2 and 3

  1. Disconnect the negative battery cable.
  2.  
  3. Detach the wiring harness connectors at the side of the distributor cap.
  4.  
  5. Remove the distributor cap and lay it aside. For details, please refer to Routine Maintenance of this guide.
  6.  
  7. Disconnect the vacuum advance line.
  8.  
  9. Scribe a mark on the engine in line with the rotor and note the approximate position of the vacuum advance unit in relation to the engine.
  10.  
  11. Remove the distributor holddown clamp and nut.
  12.  
  13. Carefully lift the distributor from the engine.
  14.  
  15. Installation is the same as for the points-type (1970-74) distributor. Please refer to the procedure located earlier in this section for details.
  16.  



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Fig. Fig. 1: Disconnect the vacuum advance line



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Fig. Fig. 2: After scribing a matchmark, loosen and remove the hold-down retainer ...



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Fig. Fig. 3: ... then carefully remove the distributor from the engine

 
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