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Home >> Buick >> 2008 >> Allure CXL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Mechanical - 5.3L) >> Repair Instructions - Off Vehicle >> Valve Rocker Arm Cover Cleaning and Inspection

Valve Rocker Arm Cover Cleaning and Inspection

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Identifying Oil Fill Cap & Oil Fill Tube
    GM1665439Courtesy of GENERAL MOTORS CORP.
    IMPORTANT:
    • Do not use the valve rocker arm cover gasket again. Install a NEW gasket during assembly.
    • Remove the ignition coils before cleaning the cover in solvent. Do not submerge the ignition coils in solvent.
    • Do not remove the oil fill tube from the covers unless service is required.
    • If the oil fill tube has been removed from the rocker arm cover, install a NEW tube during assembly.
  1. Inspect the oil fill tube (423) for a loose fit or damage.
    2. Fig 2: View Of Valve Rocker Arm Cover
    GM1602760Courtesy of GENERAL MOTORS CORP.
  2. Inspect the covers for the following conditions:
    • Scoring or damage to the gasket surfaces (1)
    • Ventilation system passages (2, 3) for restrictions
    • Threaded bolt holes (4) for damage or debris
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