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Piston Ring-to-Groove Clearance

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SPECIAL TOOLS

G06064067
Feeler Gauge Set 303-D027 (D81L-4201-A) or equivalent
NOTE: Refer to the appropriate Engine information for the specification.
  1. Inspect the piston for ring land damage or accelerated wear.
    Fig 1: Inspecting Piston For Ring Land Damage Or Accelerated Wear
    G06064082Courtesy of FORD MOTOR CO.
  2. Using the Feeler Gauge Set, measure the piston ring-to-groove clearance.
Fig 2: Measuring Piston Ring-To-Groove Clearance Using Feeler Gauge Set
G06064083Courtesy of FORD MOTOR CO.