C 1500 Truck 2WD V8-6.5L DSL Turbo VIN F (1998)
Crankshaft Main Bearing Seal: Service and Repair
REMOVAL PROCEDURE
IMPORTANT: Before a new crankshaft rear oil seal is installed, the CDR and crankshaft ventilation system should be thoroughly inspect and
crankshaft pressure should also be checked.
1. Disconnect the battery negative cables from the batteries.
2. Remove the transfer case from the vehicle if equipped.
3. Remove the transmission from the vehicle.
4. Remove the clutch assembly if equipped.
5. Remove the flywheel from the crankshaft.
IMPORTANT: Use caution as not to damage the sealing area of the crankshaft when removing the crankshaft rear oil seal.
6. Remove the crankshaft rear oil seal from the engine block.
INSTALLATION PROCEDURE
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Tools Required
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J 39084 Crankshaft Oil Seal Installer
IMPORTANT: The crankshaft sealing surface must be clean and smooth in order to prevent damaging the crankshaft rear oil seal lip when a new
seal is installed.
Because of the crankshaft rear oil seal wear or grooving, the service crankshaft rear oil will be positioned flush with the rear cylinder block surface.
The position of the new crankshaft rear oil seal will be controlled by the tool. Positioning the crankshaft rear oil in a new location provides a new
surface for the crankshaft rear oil seal to ride on.
IMPORTANT: Use care as not to cause the spring in the crankshaft rear oil seal to unseat itself.
1. Apply a small amount of clean engine oil to the hips of the crankshaft rear oil seal before installing.
2. Use the J 39084 to install the crankshaft rear oil seal.
3. Install the flywheel to the crankshaft.
4. Install the clutch assembly to the flywheel.
