Tools Required

J 23523-F Crankshaft Balancer Remover and Installer

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.




1. Apply a small amount of GM P/N 12346141 onto the crankshaft key and keyway in order to seal the balancer keyway and crankshaft joint.
2. Install the key into the crankshaft keyway.



3. Apply a small amount of GM P/N 12346141 onto the crankshaft balancer keyway (2) in order to seal the balancer keyway and crankshaft joint.



4. Install the crankshaft balancer onto the end of the crankshaft.
5. Align the keyway of the balancer with the crankshaft key.



6. Use the J 23523-F in order to install the crankshaft balancer.

6.1.	Install the tool into the front of the crankshaft.

6.2.	Rotate the tool nut until the nut, washer, and bearing are firmly against the balancer.

6.3.	Use one wrench to hold the tool forcing screw.

6.4.	Use a second wrench and rotate the tool nut clockwise until the hub is completely seated against the crankshaft sprocket.




7. Install washer (1) with F mark (2) facing front.




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.

8. Install the crankshaft washer (1) and bolt (3).

Tighten
Tighten the balancer bolt (3) to 149 N·m (110 lb ft).




9. Install the crankshaft pulley.



10. Install the crankshaft pulley bolts

Tighten
Tighten the crankshaft pulley bolts to 37 N·m (27 lb ft).