Tools Required

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.

Notice: 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.

3. Install the J 29113 onto the crankshaft.
4. Rotate the hex nut on the J 29113 to install the crankshaft balancer onto the crankshaft.
5. Remove the J 29113 from the crankshaft.




Notice: 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.

6. Install the used crankshaft balancer bolt.

Tighten
Tighten the used crankshaft balancer bolt to 125 N·m (92 lb ft).

7. Remove the used crankshaft balancer bolt.
8. Install the NEW crankshaft balancer bolt.

Tighten

1. Tighten the crankshaft balancer bolt a first pass to 125 N·m (92 lb ft).
2. Tighten the crankshaft balancer bolt a final pass to 130 degrees using the J 45059 .