Crankshaft Balancer Installation

Tools Required

• J 29113  Balancer and Crank Sprocket Puller. See Special Tools .
• J 45059  Angle Meter. See Special Tools .

Fig 1: Installing J 29113 Onto Crankshaft
Courtesy of GENERAL MOTORS CORP.
1. Apply sealer P/N 12378521 or the equivalent to the keyway of the crankshaft balancer.
2. Place the crankshaft balancer into position over the key in the crankshaft.
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.
3. Install the J 29113  onto the crankshaft. See Special Tools .
4. Rotate the hex nut on the J 29113  to install the crankshaft balancer onto the crankshaft. See Special Tools .
5. Remove the J 29113  from the crankshaft. See Special Tools .
Fig 2: Removing/Installing Crankshaft Balancer Bolt And Washer
Courtesy of GENERAL MOTORS CORP.
NOTE: Refer to Fastener Notice .
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  . See Special Tools .