GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2001 🢒 Aurora 🢒 Engine 🢒 Engine Mechanical - 3.5L 🢒 Crankshaft Front Oil Seal Installation

Tools Required

J 42041 Crankshaft Balancer and Crankshaft Front Oil Seal Installer

    Important: Do not lubricate the crankshaft front oil seal or crankshaft balancer sealing surfaces. The crankshaft balancer is installed into a dry seal.

  1. Lubricate the crankshaft front oil seal bore of the engine front cover housing with lubricant GM P/N US 12345501, Canada 992704, or equivalent.
  2. Remove the protective sleeve from the new crankshaft front oil seal.

    3. Object Number: 287912 Size: SH
  3. Place the crankshaft front oil seal (1) onto the mandrel (J 42041-1) of theJ 42041 .

    4. Object Number: 287897 Size: SH
  4. Thread the J 42041 in the crankshaft. Make sure you engage at least ten threads of the J 42041 before pressing the crankshaft front oil seal in place.
  5. Push the crankshaft front oil seal into position by tightening the nut on the J 42041 until the mandrel bottoms out on the crankshaft sprocket.

    6. Object Number: 287916 Size: SH

    Important: The crankshaft front oil seal should NOT be flush with the engine front cover.

  6. Check the installed depth (1) of the crankshaft front oil seal. The crankshaft front oil seal should protrude from the engine front cover about 1-2 mm (0.039-0078 in).