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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 23 (Engine Mechanical - 4.6L - 1 Of 4) >> On-Vehicle Repair Instructions (1 Of 2) >> Secondary Camshaft Drive Chain Tensioner Replacement - Left Side >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
  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.
    IMPORTANT: Aligning the primary timing marks will locate the left camshafts in a neutral position, preventing them from rotating when the tensioner is removed.
  2. Align the primary timing marks (1) using the J 39946  . See Special Tools .
    3. Fig 2: Identifying Left Secondary Camshaft Drive Chain Tensioner to Engine Block Bolts
    GM685353Courtesy of GENERAL MOTORS CORP.
  3. Remove the 2 bolts attaching the left secondary camshaft drive chain tensioner to the engine block.
  4. Remove the left secondary camshaft drive chain tensioner, allowing the tensioner to expand as you remove it.
  5. Clean and inspect the camshaft timing drive components. Refer to Camshaft Timing Drive Components Cleaning and Inspection .
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