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Home >> Chevrolet >> 2011 >> Corvette ZR-1 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 6.2L Or 7.0L - Repair Instructions - Off Vehicle (3 Of 5) >> Engine Block Valley Cover Cleaning and Inspection

Engine Block Valley Cover Cleaning and Inspection

    Fig 1: PCV Passages, Damaged Threads & Damaged Sealing Surfaces
    GM1408874Courtesy of GENERAL MOTORS CORP.
  1. Clean the valley cover in solvent.
    2. WARNING: Refer to Safety Glasses Warning .
  2. Dry with compressed air.
  3. Inspect for restrictions within the positive crankcase ventilation (PCV) passages (1, 4).
  4. Inspect for damaged threads (2) and damaged sealing surfaces (3).
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