K 1500 Truck 4WD V8-4.8L VIN V (1999)
Crankshaft Seal Retainer: Service and Repair
REMOVAL PROCEDURE
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Tools Required
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J 41476 Front and Rear Cover Alignment (at crankshaft seal area)
1. Remove the flywheel.
2. Remove the engine rear cover-to-engine block bolts.
3. Remove the engine rear cover-to-oil pan bolts.
4. Remove the rear cover and gasket.
5. Discard the rear cover gasket.
6. Remove the crankshaft rear oil seal from the cover.
7. Discard the oil seal.
8. Clean and inspect all parts.
INSTALLATION PROCEDURE
IMPORTANT:
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Do not reuse the crankshaft oil seal or rear cover gasket.
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Do not slide the rear cover gasket across the oil pan gasket.
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The special tool in this procedure is used to properly align the crankshaft rear oil seal.
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The crankshaft rear oil seal MUST be centered in relation to the crankshaft.
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An improperly aligned rear cover may cause premature rear oil seal wear and/or engine assembly oil leaks.
1. Apply a 5 mm (0.20 inch) bead of GM P/N 12378190 to the corner were the oil pan meets the engine block.
2. Install the rear cover, gasket and bolts to the engine.
3. Tighten the cover bolts finger tight. Do not overtighten.
