GM Celebrity/Century/Ciera/6000 1982-1996 Repair Guide

Distributor

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REMOVAL



4-Cylinder Engines

See Figure 1

  1. Disconnect the negative battery cable.
  2.  
  3. Raise the front of the vehicle and support is safely with jackstands. DO NOT place the jackstands under the engine cradle.
  4.  
  5. Remove the two rear engine cradle attaching bolts and lower the cradle just enough to gain access to the distributor.
  6.  
  7. Remove the five screws which attach the brake line support to the floorpan.
  8.  
  9. Remove the coil wire from the distributor.
  10.  
  11. Remove the distributor cap.
  12.  



Click image to see an enlarged view

Fig. Fig. 1: Exploded view of a 4-cylinder engine& distributor - 1982-86 models

  1. Mark the position of the rotor firing tip on the distributor body, then mark the relationship between the distributor body and the engine.
  2.  
  3. Loosen the distributor hold-down clamp bolt and slide the hold-down clamp aside to clear the distributor body.
  4.  
  5. Lift the distributor out of the engine and mark the point at which the rotor stops turning while you're pulling upward. The rotor will have to be positioned at this same spot in order to install the distributor correctly.
  6.  

V6 Engines

See Figure 2

  1. Disconnect the negative battery cable at the battery.
  2.  
  3. Release the distributor and ignition coil electrical connections at the distributor cap.
  4.  



Click image to see an enlarged view

Fig. Fig. 2: Distributor assembly used on 1985-86 2.8L (VIN W) engines

  1. Remove the distributor clamp screw and hold-down clamp. Note position of the rotor. Pull distributor up until the rotor just stops turning clockwise. Note the position of rotor again.
  2.  

The rotor will have to be positioned at this same spot in order to install the distributor correctly.

INSTALLATION



Engine Disturbed
  1. Remove the spark plug from the No. 1 cylinder.
  2.  
  3. Place your thumb over the spark plug hole and turn the crankshaft by hand with a wrench until pressure is felt at the plug hole.
  4.  
  5. Look at the timing marks on the front of the engine and check to see if the balancer slash is aligned with the 0 on the timing scale. If necessary, turn the crankshaft until it does align.
  6.  
  7. Position the firing tip of the rotor between the No.1 and 6 towers of the cap on 6-cylinder engines or the No. 1 tower, on 4-cylinder engine.
  8.  
  9. Install the distributor into the engine.
  10.  
  11. Reposition the hold-down clamp on the distributor body and tighten the bolt until the distributor is snug, but can be moved with a little effort.
  12.  
  13. On 4-cylinder models, jack the engine cradle back into place. Install the engine cradle bolts and the brake line support bolts.
  14.  
  15. Connect all wiring to the distributor.
  16.  
  17. Connect the battery cable, tighten the cable bolt to 11 ft. lbs. (15 Nm).
  18.  
  19. Adjust the ignition timing.
  20.  

Engine Not Disturbed
  1. Align the ignition rotor with the mark made during the removal procedure.
  2.  
  3. Install the distributor into the engine, noting that the marks made previously must align. If they don't line up the first time, remove the distributor and try again.
  4.  
  5. Reposition the hold-down clamp on the distributor body and tighten the bolt until the distributor is snug, but can be moved with a little effort.
  6.  
  7. On 4-cylinder models, jack the engine cradle back into place. Install the engine cradle bolts and the brake line support bolts.
  8.  
  9. Connect all wiring to the distributor.
  10.  
  11. Connect the battery cable, tighten the cable bolt to 11 ft. lbs. (15 Nm).
  12.  
  13. Adjust the ignition timing.
  14.  

 
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