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Home >> GMC >> 2021 >> Yukon XL AT4 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 5.3L (L84) Or 6.2L (L87) - Repair Instructions ( 2 Of 12) >> Repair Instructions >> Piston and Connecting Rod Overhaul >> Cleaning Procedure

Cleaning Procedure

    NOTE:
    • Perform the following cleaning and inspection or overhaul steps, as necessary. ONLY perform steps when components are removed with the intention of reinstallation.
    • DO NOT wire brush any part of the piston.
  1. Clean the piston skirts and the pins with a cleaning solvent.
  2. Clean the piston ring grooves with a groove cleaner. Ensure that the oil ring holes and slots are clean.
    3. WARNING:

    Refer to Safety Glasses Warning .

  3. Dry the piston with compressed air.
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