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Piston - Ring-to-Groove Clearance

WARNING: This page is about a different car, the 2002 Ford Econoline, 2002 Ford E550 Super Duty, 2002 Ford E450 Super Duty, and 2002 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect the piston for ring land damage or accelerated wear.
    Fig 1: Identifying Piston Ring Groove
    G03404802Courtesy of FORD MOTOR CO.
  2. Measure the piston ring-to-groove clearance.
    • Refer to the appropriate ENGINE article for the procedure.
    • If out of specification, install new components as necessary. Refer to the appropriate ENGINE article for the procedure.
      Fig 2: Measuring Piston Ring-To-Groove Clearance
      G03404803Courtesy of FORD MOTOR CO.