Home Auto Repair 2006 Cadillac CTS Engine Oil Leak at Crankshaft Rear Main Oil Seal

2006 Cadillac CTS Engine Oil Leak at Crankshaft Rear Main Oil Seal

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Download Removal Procedure 1. Remove the transmission. Refer to Transmission Replacement in SI or the appropriate Service Manual. 2. Remove the engine flywheel. Refer to Engine Flywheel Replacement in SI or the appropriate Service Manual. Important: Do not nick the crankshaft sealing surface when removing the seal. Service Information 3. Remove crankshaft rear main oil seal using one of the following techniques: – Refer to graphic illustration “A” for the removal of new style crankshaft rear main oil seal. – Refer to graphic illustration “B” for the removal of old style crankshaft rear main oil seal. • The seal lip faces outward. Insert a flat-bladed or similar tool between the sealing lip and the outer casing of the seal at an angle (refer to graphic Illustration “A” above). • Pry seal out by moving tool towards the center of the crankshaft. • Seal lip faces inward. Insert a flat-bladed or similar tool between the outer seal casing and the engine block casting. • Gently pry seal out (refer to graphic Illustration “B” above). 4. Repeat above steps as necessary, around the crankshaft rear oil seal, until the seal is removed. Installation Procedure 1. Align the mandrel dowel pin (EN-48108) to the dowel pin hole in the crankshaft. 2. Using a large flat blade screwdriver, tighten the two mandrel screws to the crankshaft.