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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (Engine Mechanical) >> 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 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Measuring Piston Ring End Gap
    GM4968Courtesy of GENERAL MOTORS CORP.
    IMPORTANT:
    • Do not attempt to file the end of the piston ring to achieve the proper end gap clearance.
    • Measure the piston ring in the cylinder in which it will be used.
  1. Place the piston ring into the cylinder bore 6.5 mm (0.25 in) below the top of the ring travel area.
  2. Insert a feeler gage and measure the piston ring end gap. Refer to Engine Mechanical Specifications .
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