OEM Buick Lucerne Crankshaft Seal

Buick Lucerne Crankshaft Seal Parts and Q&A

• Rear Main Seal
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  Q: How to Service and Repair the Crankshaft Seal on Buick Lucerne?

  A:

  The Crankshaft main bearing seal repair process starts with draining the vehicle's cooling system. The engine Flywheel along with the Oil Pan must be removed with precaution to avoid damaging the Crankshaft's outside diameter surface. First remove the Crankshaft rear oil seal housing bolts before pulling out both the housing and its gasket. After positioning the Crankshaft rear oil seal housing face downward onto a clean surface mounted with wood blocks you should lightly strike the outer seal perimeter with a suitable driving tool while using a hammer for removal. Check the Crankshaft surface area for possible nicks and burrs before repairing or replacing the area if needed. The Crankshaft sealing surface needs cleaning with a lint-free towel followed by inspection for burrs or sharp edges. Brush away any burrs using crocus cloth. Check the Crankshaft rear oil seal housing for foreign matter and conduct an inspection of the internal components for presence of foreign material. Install the new rear oil seal onto en-47623 rear main seal installer (EN-47623) by twisting it until complete seating occurs. Using the j 8092 drive handle combined with en-47623 position them against the housing while maintaining consistent force until the seal reaches full seating condition. A new Crankshaft rear oil seal housing gasket requires replacement before installing the combined engine housing and gasket unit. Begin by tightening Crankshaft rear oil seal housing bolts only with fingers while checking each side against a straight edge using a feeler gauge. Ensure a maximum 0.10 mm (0.004 in) gap exists. The housing bolts receive 15 n.m (11 lb ft) torque force with an additional 50-degree torque angle using j 45059 torque angle meter (J 45059) before another step height inspection for proper alignment. To pass inspection the step height must meet specifications otherwise replace the housing during reinstallation.
• Crankshaft Seal, Front
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  Q: How to replace the front crankshaft seal on Buick Lucerne?

  A:

  The first step to replace crankshaft front oil seal requires removal of the crankshaft balancer. The replacement process should protect both the seal bore in the crankshaft front and the seal contact areas. Pry out the crankshaft front oil seal with a flat-bladed tool such as a large screwdriver. Check both the crankshaft balancer and engine front cover for any present scratches. Install the crankshaft front oil seal into the engine front cover through the use of J 35354-A Seal Installer (J 35354-A). Perform bolt torque until the crankshaft front oil seal fully settles into place within the engine front cover before taking out the J 35354-A. Install and check for leaks on the crankshaft balancer to complete the replacement procedure.