69. Crankshaft Balancer Installation

- Tools Required
- J 23523-F Balancer Remover and Installer





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

Notice: 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 12346141 or equivalent onto the crankshaft balancer keyway in order to seal the crankshaft balancer keyway and crankshaft joint.





3. Install the crankshaft balancer onto the end of the crankshaft.
Align the keyway of the crankshaft balancer with the woodruff key (crankshaft balancer).
4. Install the crankshaft balancer onto the end of the crankshaft.





5. Use the J 23523-F in order to press the crankshaft balancer onto the crankshaft.
5.1. Install the J 23523-F plate and bolts onto the front of the crankshaft balancer.
^ Tighten the J 23523-F plate bolts to 25 Nm (18 ft. lbs.).
5.2. Install the J 23523-F screw into the end for the crankshaft.
5.3. Install the J 23523-F bearing, the washer, and the nut onto the J 23523-F screw.
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.

Notice: Refer to Fastener Notice in Service Precautions.





7. Install the crankshaft pulley and bolts.
- Tighten the crankshaft pulley bolts to 58 Nm (43 ft. lbs.).





8. Ensure that the crown of the crankshaft balancer washer (2) is faced away from the engine.





9. Install the crankshaft balancer washer and the bolt.
- Tighten the crankshaft balancer bolt to 95 Nm (70 ft. lbs.).