TrailBlazer 4WD L6-4.2L (2007)
Harmonic Balancer - Crankshaft Pulley: Service and Repair
Crankshaft Balancer Replacement
Tools Required
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J 36660-A Torque Angle Meter
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J 41478 Crankshaft Front Oil Seal Installer
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J 41816-2 Crankshaft End Protector
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J 44226 Crankshaft Balancer Remover/Holder
Removal Procedure
1. Remove the cooling fan and shroud. Refer to Cooling Fan and Shroud Replacement.
2. Remove the drive belt. Refer to Drive Belt Replacement.
3. Carefully loosen and remove the balancer bolt.
4. Install J 41816-2 into the end of the crankshaft.
Important: Do not pull on outer edge of the crankshaft balancer.
5. Use a 3 jaw puller to remove the crankshaft balancer.
6. Remove the 3 jaw puller and the J 41816-2.
7. Remove the crankshaft balancer shim from the crankshaft snout.
8. Clean and inspect the crankshaft balancer. Refer to Crankshaft Balancer Cleaning and Inspection.
Installation Procedure
Important: The crankshaft balancer does not have a key-way; so the crankshaft could turn when tightening, causing an improper