78. Crankshaft Balancer Installation

Crankshaft Balancer Installation

^ Tools Required
- J 45059 Angle Meter
- J 41478 Crankshaft Front Oil Seal Installer





1. Install the crankshaft balancer using J 41478.
2. Remove J 41478.
3. Hold the flywheel or back of the crankshaft. The crankshaft balancer does not have a keyway so the crankshaft could turn when tightening, causing an improper torque.





4. Install the crankshaft balancer washer and new bolt.
1. Tighten the new crankshaft balancer bolt while holding the back to 150 Nm (110 ft. lbs.).
2. Use J 45059 to tighten the crankshaft balancer bolt an additional 180 degrees.

Notice: Refer to Fastener Notice in Service Precautions.

Important: Be sure the crankshaft balancer friction washer, GM P/N 12573950, was installed prior to the engine front cover installation.