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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1496 (Engine Mechanical - 5.3L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Piston, Connecting Rod, and Bearings Cleaning and Inspection >> Measuring Piston Ring End Gap

Measuring Piston Ring End Gap

WARNING: This page is about a different car, the 2003 GMC Envoy XL and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
  • Do not attempt to file the end of the piston ring for fit in the cylinder bore.
  • Measure the piston ring in the cylinder in which the piston ring will be used.
  1. Place the piston ring into the cylinder bore.
  2. Push the piston ring into the bore 6.5 mm (0.25 in) below the piston ring travel area.
  3. Insert a feeler gage and measure the piston ring end gap. Refer to ENGINE MECHANICAL SPECIFICATIONS   .
    Fig 1: Measuring Piston Ring End Gap Using Feeler Gage
    G02129464Courtesy of GENERAL MOTORS CORP.
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