GM Corsica/Beretta 1988-1996 Repair Guide

Crankshaft Damper/Balancer

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REMOVAL & INSTALLATION



Except 2.3L Engines

See Figures 1, 2, 3, 4 and 5

The inertia section of the crankshaft balancer is assembly to the hub with a rubber sleeve. Removal and installation MUST be performed with the proper tools and followed exactly to prevent movement of the inertia weight section of the hub causing the torsional damper tuning damage.

  1. Remove the air cleaner assembly.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Remove the right side front wheel and tire assembly. Remove the right splash shield.
  6.  
  7. Remove the flywheel cover.
  8.  
  9. Remove the balancer retaining bolt, with an assistant to keep the flywheel from turning.
  10.  
  11. Install harmonic balancer removal tool J 24420-B or equivalent, installed on the balancer, turn the puller screw, then remove the balancer from the vehicle.
  12.  



Click image to see an enlarged view

Fig. Fig. 1: Attach a suitable puller to the crankshaft damper (harmonic balancer)



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Fig. Fig. 2: Sometimes its necessary to hold the puller in place for leverage while turning the puller screw



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Fig. Fig. 3: Remove the crankshaft damper (harmonic balancer) from the vehicle



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Fig. Fig. 4: Exploded view of the crankshaft pulley and hub - 2.0L and 2.2L engines



Click image to see an enlarged view

Fig. Fig. 5: Exploded view of the crankshaft (harmonic) balancer - 1988-93 2.8L and 3.1L engines

To install:
  1. Coat the area of the damper that contacts the front cover seal with clean engine oil.
  2.  
  3. Apply RTV sealant to the key and keyway.
  4.  
  5. Place the balancer in position over the key in the crankshaft.
  6.  
  7. Place balancer installer tool J 29113, or equivalent, onto the crankshaft.
  8.  
  9. Pull the balancer into position, then remove the installation tool.
  10.  
  11. With an assistant to keep the flywheel from turning, install the balancer retaining bolt and tighten to 76 ft. lbs. (103 Nm).
  12.  
  13. Install the transaxle converter cover.
  14.  
  15. Install the right splash shield and the wheel and tire assembly.
  16.  
  17. Carefully lower the vehicle.
  18.  
  19. Install the serpentine drive belt.
  20.  
  21. Connect the negative battery cable, then start the engine and check for leaks.
  22.  

2.3L Engine
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the serpentine drive belt.
  4.  
  5. Raise and safely support the vehicle.
  6.  
  7. Remove the right front wheel and tire assembly. Remove the right splash shield.
  8.  
  9. Remove the balancer retaining bolt, using crankshaft balancer holder tool J 38122 or equivalent, to prevent the crankshaft from rotating when loosening the bolt.
  10.  
  11. Remove the balancer using tool J 24420-B or equivalent puller.
  12.  


WARNING
The automatic transaxle crankshaft balancer must NOT be installed on a vehicle equipped with a manual transaxle.

To install:
  1. Lubricate the front seat and the sealing surface of the balancer with chassis grease 1051344 or equivalent.
  2.  
  3. Position the balancer onto the crankshaft, properly indexing the keyway. Tap the balancer into place using a rubber mallet.
  4.  
  5. Install the balancer retaining bolt and washer. Use tool J 38122 or equivalent to hold the crankshaft in place, then tighten as follows:
    1. 1990-92 vehicles: 74 ft. lbs. (100 Nm)
    2.  
    3. 1993 vehicles: 110 ft. lbs. (150 Nm)
    4.  
    5. 1994 vehicles: 129 ft. lbs. (175 Nm)
    6.  

  6.  

Do not use a torque angle meter to final tighten the balancer retaining bolt. The torque capacity of the tool will be exceeded, and the tool will be damaged.

  1. To apply the final torque to the retaining bolt, put a mark on the socket next to one of the 4 marks on the balancer holding tool. This mark will represent the zero point. Tighten the bolt by rotating the socket clockwise 90°. At 90°, the socket indexes with the next mark on the tool.
  2.  
  3. Install the splash shield, then install the wheel and tire assembly.
  4.  
  5. Carefully lower the vehicle.
  6.  
  7. Install the serpentine drive belt.
  8.  
  9. Connect the negative battery cable, then start the engine and check for leaks.
  10.  

 
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