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Home >> Buick >> 2022 >> Encore GX Essence, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Engine Mechanical - 1.2L (LIH) - Repair Instructions) >> Repair Instructions >> Cylinder Head Cleaning and Inspection >> Cleaning Procedure

Cleaning Procedure

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  1. Remove any old thread sealant, gasket material or sealant.
  2. Clean all cylinder head surfaces with non-corrosive solvent.
  3. Blow out all the oil galleries using compressed air.
  4. Remove any carbon deposits from the combustion chamber.