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Installation Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Balancer & Crank Sprocket Puller (J 29113)
    GM1557862Courtesy of GENERAL MOTORS CORP.
  1. Apply sealer GM P/N 12378521 (Canadian P/N 88901148) or the equivalent to the keyway of the crankshaft balancer.
  2. Place the crankshaft balancer into position over the key in the crankshaft.
  3. NOTE: Do NOT use a power-assisted tool with the special tool in order to remove or install this component. You cannot properly control the alignment of this component using a power-assisted tool and this can damage the component.
  4. Install the J 29113  onto the crankshaft.
  5. Rotate the hex nut on the J 29113  to install the crankshaft balancer onto the crankshaft.
  6. Remove the J 29113  from the crankshaft.
  7. Fig 2: Identifying Crankshaft Balancer Bolt & Washer
    GM1556792Courtesy of GENERAL MOTORS CORP.
    NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  8. Install the crankshaft balancer washer and bolt.

    Tighten: 

    • Tighten the crankshaft balancer bolt a first pass to 70 N.m (52 lb ft).
    • Tighten the crankshaft balancer bolt a final pass to 70 degrees using the J 45059  .