Piston Ring End Gap

WARNING: This page is about a different car, the 2018 RAM 2500 HD and 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of CHRYSLER GROUP, LLC

NOTE:

Before reinstalling used rings or installing new rings, the ring clearances must be checked.

Wipe the cylinder bore clean.
Insert the ring in the cylinder bore.
NOTE:
The ring gap measurement must be made with the ring positioned at least 12 mm (0.472 inch.) from bottom of cylinder bore.
Using a piston, to ensure that the ring is squared in the cylinder bore, slide the ring downward into the cylinder.
Using a feeler gauge check the ring end gap (1). Replace any rings not within specification.