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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 203 (Engine Mechanical - 3.5L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Crankshaft Front Oil Seal Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
    2. Fig 1: View Of Crankshaft Key & Keyway
    GM63661Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Do not damage the crankshaft.
  2. Remove the crankshaft key from the keyway.
    3. Fig 2: View Of Oil Seal
    GM54386Courtesy of GENERAL MOTORS CORP.
  3. Pry out the oil seal using a large screwdriver or the equivalent.
  4. Inspect the following items for scratches:
    • The front cover
    • The crankshaft
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