OEM 2008 Cadillac XLR Crankshaft Seal

2008 Cadillac XLR Crankshaft Seal Parts and Q&A

• Q: How to replace the rear crankshaft seal on 2008 Cadillac XLR?

  A: Begin Crankshaft rear oil seal replacement by removing the Flywheel first. Installation requires the Crankshaft rear oil seal remover (J 42841-A) which should be positioned on the Crankshaft with retaining bolt attachment. Drive eight 25 mm (1.0 in) self-drilling screws through the seal while following the guideholes inside the removal tool, slowing the drill speed as each screw threads into position. The seal assembly operation requires complete screw installation followed by bolt removal to permit the center forcing screw which will extract the seal assembly from the Crankshaft. Use the seal applicator (EN-48072) to evenly apply sealant onto a clean and dry bore before installation to avoid drain back holes becoming blocked. Check engine block bore and Crankshaft flange for possible damage before removing debris from the oil drain-back hole. Use gm p/n 12378392 or 12346139 cleaner solvent (Canadian P/N 88901247) to clean the bore. The Crankshaft rear oil seal installer (J 45930-A) provides the correct bolts to secure the en-48072 pilot base before the applicator housing must be installed over the base using the bottoming installation method in the bore. The bore's outer diameter should receive sealant gm p/n 12378521 (Canadian P/N 88901148) application avoiding the drain hole blockage. Gently pull out the applicator housing while checking both that the sealant spreads smoothly and that the drain back hole remains clear. Secure the new cassette style Crankshaft rear oil seal onto the center hub of the j 45930-a by tightening its mounting bolts to a secure attachment on the Crankshaft. Twist the center nut so the drive section of j 45930-a reaches crankcase bottom then loosen all components to separate the installer from the mounting bolts. Apply the new seal correctly following defined surface measurements then inspect tools to eliminate leftover sealant before reinstalling the Flywheel.