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Home >> Chevrolet >> 2004 >> Malibu Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 232 (Engine Mechanical - 3.6L (Ly7) (Repair Instructions - 3 Of 5)) >> Off-Vehicle Repair Instructions (Part 2) >> Camshaft Timing Drive Components Cleaning and Inspection >> Visual Inspection >> Left Intermediate Sprocket with Primary Inverted Tooth (IT) Chain

Left Intermediate Sprocket with Primary Inverted Tooth (IT) Chain

WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Checking Front Of Left Intermediate Sprocket Inspection Areas
    GM1545373Courtesy of GENERAL MOTORS CORP.
  1. Inspect the front of the left intermediate sprocket for the following:
    • Damage to the primary camshaft drive chain sprocket (1)
    • Damage to the hub bearing (2)-Ensure the hub bearing spins freely. If the hub bearing wobbles, is noisy or feels rough when rotated, replace the intermediate sprocket.
    • Damage to the bolt flange seating/sealing surface (3)
    2. Fig 2: Inspecting Back Of Intermediate Sprocket
    GM1545376Courtesy of GENERAL MOTORS CORP.
  2. Inspect the back of the intermediate sprocket for the following:
    • Damage to the left secondary camshaft drive chain sprocket (1)
    • Damage to the bearing hub-to-engine block sealing surface (2)
  3. Replace a damaged left intermediate sprocket.
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