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Home >> Chevrolet >> 2017 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Mechanical - 1.8L (LKN)) >> Repair Instructions - Off Vehicle >> Piston, Connecting Rod and Bearing Cleaning and Inspection >> Visual Inspection And Cleaning Procedure >> Piston

Visual Inspection And Cleaning Procedure: Piston

WARNING: This page is about a different variant/trim than selected.
  1. Clean the piston with a cleaning solvent. DO NOT wire brush any parts of the piston.
    Fig 1: Identifying Piston Damage Inspection Areas
    GM156168Courtesy of GENERAL MOTORS COMPANY
  2. Clean the piston ring grooves.
  3. Inspect the piston on the following:
    • Cracked ring lands, skirts or pin bosses
    • Ring grooves for nicks
    • Eroded areas on the top of the piston (1)
    • Scuffed or damaged skirts (2)
    • Worn piston pin bores (3)
  4. If there is any excessive wear, replace the piston.
  5. Measure the clearance between piston pin and piston bore.