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Home >> Cadillac >> 2021 >> CT4 V, 4WD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 2.7L (L3B) - Repair Instructions - Ct4 (4 Of 6) >> Cylinder Head Overhaul >> Cleaning Procedure

Cleaning Procedure

  1. Remove any old thread sealant, gasket material or sealant.
  2. Clean all cylinder head surfaces with non-corrosive cleaning solvent.
    3. WARNING:

    Refer to Safety Glasses Warning .

  3. Blow out all the oil galleries using compressed air.
  4. Remove any carbon deposits from the combustion chamber.
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