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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Mechanical - 4.6L (2 Of 5)) >> On-Vehicle Repair Instructions (1 Of 2) >> Secondary Camshaft Drive Chain Tensioner Replacement - Right Side >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Remove the engine front cover. Refer to Engine Front Cover Replacement .
    2. Fig 1: Identifying Primary Timing Gear Alignment Marks
    GM517185Courtesy of GENERAL MOTORS CORP.
  2. Align the primary timing marks (1) using the J 39946  .
    3. Fig 2: View Of Mechanics Wire, Right Secondary Camshaft Drive Chain Shoe & Front Cover Bolt
    GM749349Courtesy of GENERAL MOTORS CORP.
  3. Install an engine front cover bolt (2) into the front of the engine.
    4. IMPORTANT: Securing the right secondary camshaft drive chain shoe will prevent the right camshaft drive sprocket teeth from skipping on the right secondary timing chain.
  4. Wrap mechanics wire (1) tightly around both the right secondary camshaft drive chain shoe (3) and the front cover bolt (2).
    5. Fig 3: Identifying Right Secondary Camshaft Drive Chain Tensioner to Engine Block Bolts
    GM212695Courtesy of GENERAL MOTORS CORP.
  5. Remove the 2 bolts attaching the right secondary camshaft drive chain tensioner to the engine block.
  6. Remove the right secondary camshaft drive chain tensioner, allowing the tensioner to expand as you remove it.
  7. Clean and inspect the camshaft timing drive components. Refer to Camshaft Timing Drive Components Cleaning and Inspection .
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