Blazer 2WD V6-4.3L VIN X (2004)
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Worn, grooved, or damaged crankshaft front oil sealing surface (2)
Minor imperfections on the crankshaft balancer crankshaft front oil seal surface may be removed with a polishing compound or fine grade
emery cloth.
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Worn, chunking, or deteriorated rubber (3) between the hub and the outer ring
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Worn or damaged keyway (4)
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Worn or damaged bolt hole threads (5)
Installation Procedure
1. Apply a small amount of grease to the crankshaft front cover oil seal sealing surface if reusing the seal. Look to ensure that the front groove pin
(crankshaft balancer) is installed in the proper location (if applicable). The length and location of the pins must be the same as the original length
and location.
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 (Canadian P/N 10953433) or equivalent onto the crankshaft balancer keyway in order to
seal the crankshaft balancer keyway and crankshaft joint.
3. Align the keyway of the crankshaft balancer with the crankshaft balancer key.
4. Install the crankshaft balancer onto the end of the crankshaft.
