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Home >> Chevrolet >> 2005 >> Aveo Base, 4D Hatchback >> Repair and Diagnosis >> External Pages >> Different car >> Section 109 (Engine Mechanical - 1.6L) >> Repair Instructions - Off Vehicle >> Piston, Connecting Rod, and Bearing Cleaning and Inspection >> Piston Inspection

Piston Inspection

WARNING: This page is about a different car, the 2008 Suzuki Swift +, 2008 Pontiac Wave, and 2008 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Inspecting Piston
    GM1291387Courtesy of GENERAL MOTORS CORP.
  1. Inspect the connecting rod for bending or twisting. If the connecting rod is bent or twisted, replace the connecting rod.
  2. Inspect the connecting rod bearings.
  3. Inspect the connecting rod lower end for wear.
  4. Inspect the connecting rod upper end for scoring.
  5. Inspect the crankshaft rod bearing journal for wear. Refer to Engine Mechanical Specifications .
  6. Inspect the piston for scoring, cracks, and wear.
  7. Inspect the piston for taper using a micrometer.
  8. Fig 2: Inspecting Piston Fit To Connecting Rod
    GM1291388Courtesy of GENERAL MOTORS CORP.
  9. Inspect the piston for fit to the connecting rod.
  10. Fig 3: Inspecting Engine Block Cylinder Bore
    GM1289362Courtesy of GENERAL MOTORS CORP.
  11. Inspect the engine block deck surface for flatness using a straight edge and a feeler gage. Refer to Engine Mechanical Specifications .
  12. Inspect the bearing bore for concentricity and alignment using a bore gage. Refer to Engine Mechanical Specifications . If the bearing bore is beyond specifications, replace the engine block.
  13. Inspect the engine block cylinder bore for wear, runout, ridging and taper using a bore gage. Refer to Engine Mechanical Specifications .
  14. Inspect the engine block cylinder bore for glazing.