K 1500 Suburban 4WD V8-6.5L DSL Turbo VIN F (1999)
Crankshaft Main Bearing Seal: Service and Repair
REMOVAL PROCEDURE
IMPORTANT: Do not raise the engine block by the crankshaft balancer to perform this service procedure.
1. Disconnect both the battery negative cables from the batteries. Refer to Battery Cable in Powertrain Management.
2. Remove the oil level indicator and tube from the engine. Refer to Oil Level Indicator and Tube Replacement.
3. Raise the vehicle and support with safety stands.
4. Drain the engine oil.
5. Remove the transfer case from the vehicle (4 wheel drive models only).
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For the BW 4401, BW 4470, and NVG 241-NP2 transfer cases, refer to Transfer Case Replacement in Transmission and Drivetrain.
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For the NVG 243-NP1 transfer case, refer to Transfer Case Replacement in Transmission and Drivetrain.
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For the NVG 246-NP8 transfer case, refer to Transfer Case Replacement in Transmission and Drivetrain.
6. Remove the transmission from the vehicle.
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For the 41-80-E automatic transmission, refer to Transmission Replacement in Transmission and Drivetrain.
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For the NV 4500 manual transmission, refer to Transmission Replacement in Transmission and Drivetrain.
7. Remove the front propeller shaft (4 wheel drive models only).
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For vehicle equipped with the non active transfer case, refer to Propeller Shaft Replacement (Front Axle - All Except NP8) in Transmission
and Drivetrain.
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For vehicle equipped with the active transfer case, refer to Propeller Shaft Replacement (Front Axle - NP8) in Transmission and Drivetrain.
8. Remove the clutch assembly from the flywheel (if equipped). Refer to Clutch Assembly Replacement in Transmission and Drivetrain.
9. Remove the flywheel from the crankshaft. Refer to Engine Flywheel Replacement.
10. Remove the crankshaft rear oil seal from the crankshaft.
INSTALLATION PROCEDURE
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Tools Required
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J 39084 Crankshaft Rear Oil Seal Installer
1. Use the J 39084 to install the crankshaft rear oil seal to the crankshaft.
2. Install the flywheel to the crankshaft. Refer to Engine Flywheel Replacement.
3. Install the clutch assembly to the crankshaft (if equipped). Refer to Clutch Assembly Replacement in Transmission and Drivetrain.
4. Install the transmission (2 wheel drive models only) to the vehicle.
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For the 41-80-E automatic transmission, refer to Transmission Replacement in Transmission and Drivetrain.
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For the NV 4500 manual transmission, refer to Transmission Replacement in Transmission and Drivetrain.
