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Home >> GMC >> 2011 >> Yukon Base, 5.3 3 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 24 (Engine Mechanical - Hybrid (LZ1) - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Camshaft Timing Chain and Sprocket Cleaning and Inspection

Camshaft Timing Chain and Sprocket Cleaning and Inspection

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Camshaft Timing Chain And Sprocket
    GM2359730Courtesy of GENERAL MOTORS CORP.
  1. Clean the components with cleaning solvent.
    2. WARNING:

    Refer to Safety Glasses and Compressed Air Warning .

  2. Dry the components with compressed air.
  3. Inspect the timing chain for binding or wear.
  4. Inspect the crankshaft sprocket for worn, damaged, or chipped teeth.
  5. Inspect for a damaged keyway.
  6. Inspect for worn oil pump drive splines.
    7. Fig 2: Timing Chain Tensioner Inspection Points
    GM1658210Courtesy of GENERAL MOTORS CORP.
  7. Inspect the timing chain tensioner for the following conditions:
    • Damaged or broken tension spring (1)
    • Excessive wear or scoring on the chain guide surfaces (2, 3)
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