K 2500 Truck 4WD V8-454 7.4L VIN J SFI (1997)
Crankshaft Main Bearing Seal: Service and Repair
REMOVAL
1. Remove the transmission, and the clutch. Refer to Transmission and Drivetrain.
2. Remove the flywheel. Refer to Transmission and Drivetrain.
NOTE: When removing the crankshaft rear oil seal be careful not to nick the crankshaft sealing surface.
3. Remove the crankshaft rear oil seal.
4. Inspect the chamfer on the crankshaft for damage. Repair as necessary.
5. Clean the seal running surface on the crankshaft with a non-abrasive cleaner.
INSTALLATION
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Tools Required
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J 38841 Rear Oil Seal Installer
1. Install the crankshaft rear oil seal as follows:
(1) Lubricate the inner and the outer diameter of the seal with clean engine
(2) Install the seal on the rear oil seal installer.
(3) Position the rear oil seal installer against the crankshaft. Thread the attaching screws into the tapped holes in the crankshaft.
(4) Tighten the screws securely with a screwdriver in order to ensure that the seal is installed squarely over the crankshaft.
(5) Turn the handle until it bottoms.
(6) Remove the rear oil seal installer.
2. Install the engine flywheel. Refer to Transmission and Drivetrain.
3. Install the transmission and the clutch. Refer to Transmission and Drivetrain.
