Harmonic Balancer - Crankshaft Pulley: Service and Repair

CAUTION: The inertia weight section of the crankshaft balancer is assembled to the hub with a rubber sleeve. The removal and installation procedures (with proper tools) MUST be followed or movement of the inertia weight section on the hub will destroy the tuning of the torsional damper.

Crankshaft Balancer:

REMOVAL
1. Remove serpentine belt.
2. Raise vehicle and suitably support.
3. Remove right front tire and wheel assembly.
4. Remove inner fender splash shield (right side).
5. Remove flywheel cover.
6. Remove balancer retaining bolt, with assistant to keep flywheel from turning.

Crankshaft Balancer Remover:

7. With J 24420-B installed on balancer, turn puller screw, and remove balancer.

INSTALLATION
1. Coat front cover seal contact area (on balancer) with engine oil.
2. Apply Ultra Black RTV sealant GM P/N 12345739 to key and keyway.
3. Place balancer in position over key in crankshaft.

Torsional Damper Installer:

4. Install J 29113 into crankshaft.
5. Install balancer into position using J 29113.
6. Remove J 29113 from crankshaft.
7. Install balancer retaining bolt, with assistant to keep flywheel from turning then torque bolt to 103 Nm (76 lb. ft.).
8. Install flywheel cover.
9. Install inner fender splash shield.
10. Install right front tire and wheel assembly.
11. Lower vehicle then install serpentine belt.