OEM 2006 Buick Lucerne Crankshaft Seal

2006 Buick Lucerne Parts Questions & Experts Answers

• Q: How to replace the rear crankshaft seal and housing on 2006 Buick Lucerne?

  A: Engineering professionals should start by draining the cooling system followed by engine Flywheel and Oil Pan removal without damaging the Crankshaft's outside diameter surface before repairing the Crankshaft rear oil seal and housing. First remove the Crankshaft rear oil seal housing bolts before extracting the housing together with its gasket. Support the housing face down on a clean surface before using a driving tool with hammer to tap gently at its outer part for seal removal. Check the Crankshaft for imperfections then perform repairs before conducting replacements if needed. The Crankshaft sealing surface requires cleaning with a lint-free towel followed by a check for burrs and sharp edges to be removed using crocus cloth. Check the rear oil seal housing for foreign material while also conducting a proper inspection. Position the en-47623 rear main seal installer (EN-47623) with the new rear oil seal while twisting until complete insertion. Use the en-47623 with j8092 drive handle (J8092) to push down on the housing until the seal becomes fully seated. Service requires the installation of fresh rear oil seal housing gasket components along with the housing onto the engine while discarding the production-specific plastic inserts. Begin housing bolt installation by tightening them by hand before testing each side with a straight edge and feeler gauge for a proper step height below 0.10 mm (0.004 inch). Adjust the bolts as needed. Use the j45059 torque angle meter (J45059) to apply 15 nm force (11 ft. Lbs.) and 50 degrees of torque to the housing bolts until the designed specifications return and the step height reaches proper alignment. Check step height again before replacing the housing if specifications remain off.