Piston Ring-to-Groove Clearance

WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, and 2012 Ford F450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

SPECIAL TOOLS CHART

Feeler Gauge Set
303-D027 (D81L-4201-A) or equivalent

NOTE: Refer to the appropriate ENGINE article service information for the specification.

Inspect the piston for ring land damage or accelerated wear.

Fig 1: Inspecting Piston For Ring Land Damage Or Accelerated Wear
Courtesy of FORD MOTOR CO.
Using the Feeler Gauge Set, measure the piston ring-to-groove clearance.

Fig 2: Measuring Piston Ring-To-Groove Clearance

Courtesy of FORD MOTOR CO.