OEM Buick Rainier Crankshaft Seal

Buick Rainier Crankshaft Seal Parts Questions & Experts Answers

• Rear Main Seal
  89060436
  Q: How to replace the rear crankshaft seal and housing on Buick Rainier?

  A: The Crankshaft rear oil seal and housing replacement requires removing the transmission from the engine and then unbolting the Flywheel to separate it from the motor. First, remove the Crankshaft rear oil seal housing bolts but replace them with two bolts in the jackscrew holes to take off the cover from the block. Next is Crankshaft removal to access the rear oil seal housing so you can extract the oil seal from the Crankshaft snout. The rear seal installer (J 44227) assists in Crankshaft rear oil seal installation by guiding the process. After sealing it in position remove the installer tool. Use 3 mm (0.12 inch) gm p/n 12378521 adhesive to coat the rear oil seal housing. Insert cover alignment pins (J 44219) into the block while you utilize the plastic installation sleeve provided with the new seal. This sleeve should separate after the installation is complete. Set the Crankshaft rear oil seal housing over the alignment pins and Crankshaft before you install the housing bolts except for the guide pins. After removing the guide pins install the remaining housing bolts and apply 10 nm torque to all elements. The bottom of the Oil Pan sealing area needs its extra material removed before installing the Flywheel with bolts while following a 25 nm (18 ft. Lbs.) sequence for tightening. To finalize the transmission installation use the torque angle meter (J 36660-A) for tightness control on the bolts by adding 50 degrees to their turning angle.