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Home >> Buick >> 2008 >> Allure CXL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Mechanical - 3.6L (4 Of 5)) >> Off-Vehicle Repair Instructions (2 Of 3) >> Camshaft Cover Cleaning and Inspection >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Inspect each camshaft cover for the dents or damage to the exterior. A dented or damaged camshaft cover may:
    • Leak engine oil
    • Effect crankcase ventilation
    • Interfere with the camshafts
    • Interfere with the ignition coil sealing
    • Allow water or condensation to enter the engine
    2. Fig 1: Inspecting Exterior Of Left Camshaft Cover
    GM1832351Courtesy of GENERAL MOTORS CORP.
  2. Inspect the exterior of the left camshaft cover for the following conditions:
    • Damage to the camshaft cover bolt holes (1)
    • Damage to the oil fill hole (2)
    • Damage to the mounting holes (3) for the ignition coil assembly and fuel injector sight shield ballstud.
    • Damage to the positive crankcase ventilation (PCV) hose connector (4)-A damaged PCV hose connector is replaceable.
    3. Fig 2: View Of Left Camshaft Cover Internal Inspection Points
    GM1832352Courtesy of GENERAL MOTORS CORP.
  3. Inspect the interior of the left camshaft cover for the following conditions:
    • Gouges or damage to the camshaft cover sealing groove (1)
    • Damaged, loose or missing baffle fasteners (2)
    • Damaged, loose or missing baffle (3)
    • Gouges or damage to the spark plug shield seal bore (4)
    • Restrictions to the ventilation system (5)
    4. Fig 3: View Of Right Camshaft Cover Exterior Inspection Locations
    GM1832353Courtesy of GENERAL MOTORS CORP.
  4. Inspect the exterior of the right camshaft cover for the following conditions:
    • Damage to the PCV orifice (1)-A damaged PCV orifice can be replaced. Refer to PCV Orifice Replacement .
    • Damage to the mounting holes (2) for the ignition coil assembly
    • Damage to the camshaft cover bolt holes (3)
    5. Fig 4: View Of Right Camshaft Cover Interior Inspection Locations
    GM1832354Courtesy of GENERAL MOTORS CORP.
  5. Inspect the interior of the right camshaft cover for the following conditions:
    • Restrictions to the ventilation system (1)
    • Gouges or damage to the spark plug shield seal bore (2)
    • Gouges or damage to the camshaft cover sealing groove (3)
  6. Repair or replace the camshaft cover or covers as necessary.
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