Harmonic Balancer - Crankshaft Pulley: Service and Repair

Crankshaft Balancer Replacement
Tools Required
^ EN 46359 Puller End Protector
^ J29113 Balancer and Crank Sprocket Installer
^ J37096 Flywheel Holder
^ J41816 Harmonic Balancer Remover
^ J45059 Angle Meter

Removal Procedure

1. 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.

Remove the drive belt.
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
3. Remove the right front tire and wheel.
4. Remove the right engine splash shield.
5. Install adjustable jack stands under the frame.
6. Loosen the left side frame bolts and remove the right side frame bolts.
7. Using the jack stands, lower the right side of the frame in order to access the crankshaft balancer.
8. Remove the torque converter covers.
9. Install the J37096 to the flywheel in order to prevent flywheel rotation.





10. Remove the crankshaft balancer bolt and the washer.





11. Notice: 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.

Remove the crankshaft balancer using the J41816 and EN 46359.

Installation Procedure





1. Apply sealer GM P/N 12378521 (Canadian P/N 88901148) or equivalent to the keyway of the crankshaft balancer.
2. Place the crankshaft balancer into position over the key in the crankshaft.
3. Thread the J29113 into the crankshaft.
4. Rotate the hex nut on the J29113 in order to install the crankshaft balancer onto the crankshaft.
5. Remove the J29113 from the crankshaft.





6. Install the crankshaft balancer washer and the bolt.

Notice: Refer to Fastener Notice.

7. Tighten the crankshaft balancer bolt.
Tighten the bolt to 70 Nm (52 ft. lbs.) plus an additional 70 degrees using the J45059.
8. Remove the J45059 from the flywheel.
9. Install the torque converter covers.
10. Raise the frame into the original position.
11. Install and tighten the right and left side frame bolts.
Tighten the bolts to 100 Nm (74 ft. lbs.) plus an additional 90 degrees using the J45059.
12. Install the right engine splash shield.
13. Install the right front tire and wheel.
14. Lower the vehicle.
15. Install the drive belt.