LaCrosse V6-3.8L VIN 2 (2005)
Crankshaft Main Bearing Seal: Service and Repair
Crankshaft Rear Oil Seal and Housing Replacement
Tools Required
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EN-47623 Rear Main Seal Installer
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J8092 Drive Handle
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J45059 Torque Angle Meter
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Drain the cooling system.
3. Drain the engine oil.
4. Remove the engine flywheel.
5. Remove the oil pan.
6. Remove the crankshaft rear oil seal housing bolts.
7. Remove the crankshaft rear oil seal housing.
8. Remove the crankshaft rear oil seal.
9. Important: Ensure not to damage the crankshaft outside diameter surface with any tool.
Remove the gasket from the crankshaft rear oil seal housing and the cylinder block.
10. Inspect the inside diameter of the bore. Correct or replace the crankshaft rear oil seal housing if necessary.
11. Inspect the crankshaft for nicks of burrs on the surface that contacts the seal.
12. Repair or replace the crankshaft if necessary.
Installation Procedure
Notice: Do not apply or use any oil lubrication on the crankshaft rear oil seal, or the seal installer. Do not touch the sealing lip of the oil seal once the
protective sleeve is removed. Doing so will damage/deform the seal.
Notice: Clean the crankshaft sealing surface with a clean, lint free towel. Inspect lead-in edge of crankshaft for burrs/sharp edges that could damage
the rear main oil seal. Remove burrs/sharp edges with crocus cloth before proceeding.
1. Clean and inspect the crankshaft rear oil seal housing making sure it is free of any foreign material.
2. With all bolts removed from the housing, place it face up on a flat clean surface.
3. Carefully remove the protection sleeve from the NEW rear oil seal.
