Envoy 2WD V6-4.3L VIN W (1998)
Crankshaft Gear/Sprocket: Service and Repair
REMOVAL PROCEDURE
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Tools Required
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J 23523-F Balancer Remover and Installer
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J 5825-A Crankshaft Gear Remover
IMPORTANT: Once the composite engine front cover is removed, DO NOT reinstall the engine front cover. Always install a NEW engine front
cover.
1. Remove the engine front cover.
2. Remove the crankshaft position sensor reluctor ring.
NOTICE: In order to rotate the crankshaft, in the end of the crankshaft install a short bolt with the same threads or use the crankshaft balancer
bolt with sufficient spacers to keep from damaging the threads of the bolt.
3. Check the timing chain free play.
4. Rotate the crankshaft until:
4.1. The timing marks on both sprockets line up.
4.2. The number four cylinder is at top dead center (TDC) of the compression stroke.
