Tools Required

J 23523-F  Balancer Remover and Installer

1. Look to ensure that the crankshaft balancer front groove pin is installed in the proper location, if applicable.

   The length and location of the pins must be the same as the original length and location.

   Fig 1: Crankshaft Balancer & Pins

   Courtesy of GENERAL MOTORS CORP.
   NOTE: The inertial weight section of the crankshaft balancer is assembled to the hub with a rubber type material. The correct installation procedures (with the proper tool) must be followed or movement of the inertial weight section of the hub will destroy the tuning of the crankshaft balancer.
2. Apply a small amount of adhesive GM P/N United States 12346141, GM P/N Canada 10953433, or equivalent, onto the crankshaft balancer keyway in order to seal the crankshaft balancer keyway and crankshaft joint.
3. Align the keyway of the crankshaft balancer with the crankshaft balancer key.
4. Install the crankshaft balancer onto the end of the crankshaft.
   Fig 2: Crankshaft Balancer Key

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   NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
5. Use the J 23523-F  in order to press the crankshaft balancer onto the crankshaft.
   1. 5.1. Install the J 23523-F  plate and bolts onto the front of the crankshaft balancer.

      Tighten 

      Tighten the J 23523-F  plate bolts to 25 N.m (18 lb ft).

   2. 5.2. Install the J 23523-F  screw into the end for the crankshaft.
   3. 5.3. Install the J 23523-F  bearing, the washer, and the nut onto the J 23523-F  screw.
   4. 5.4. Rotate the J 23523-F  nut clockwise until the crankshaft balancer hub is completely seated against the crankshaft position sensor reluctor ring.
6. Remove the J 23523-F. 
   Fig 3: Installing Crankshaft Balancer Using J 23523-F

   Courtesy of GENERAL MOTORS CORP.
7. Install the crankshaft pulley and bolts.

   Tighten 

   Tighten the crankshaft pulley bolts to 58 N.m (43 lb ft).

   Fig 4: Crankshaft Pulley & Bolts

   Courtesy of GENERAL MOTORS CORP.
8. Ensure that the crown of the crankshaft balancer washer (2) is faced away from the engine.
   Fig 5: Crankshaft Balancer Washer Crown

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9. Install the crankshaft balancer washer and the bolt.

   Tighten 

   Tighten the crankshaft balancer bolt to 95 N.m (70 lb ft).

   Fig 6: Crankshaft Balancer Washer & Bolt

   Courtesy of GENERAL MOTORS CORP.