Piston Ring End Gap

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Use care when fitting piston rings to avoid possible damage to the piston ring or the cylinder bore.

NOTE: Piston rings should not be transferred from one piston to another.

NOTE: Refer to the appropriate Engine for the specification.

NOTE: The cylinder bore must be within specification for taper and out-of-round.

Use a piston without rings to push a piston ring in a cylinder to the bottom of ring travel.

Fig 1: Pushing Piston Ring In Cylinder To Bottom Of Ring Travel
Courtesy of FORD MOTOR CO.
Use a feeler gauge to measure the top piston ring end gap and the second piston ring end gap.

Fig 2: Measuring Piston Ring End Gap
Courtesy of FORD MOTOR CO.