Piston Rings

WARNING: This page is about a different variant/trim than selected.

Fig 1: Identifying Piston Rings

Courtesy of CHRYSLER LLC

Measure clearance of piston rings to the cylinder bore and piston. See STANDARD PROCEDURE .
The No. 1 and No. 2 piston rings have a different cross section. Ensure that which ever design No. 2 ring is installed, it is installed with manufacturers I.D. mark (dot) facing up, towards top of the piston. See DESCRIPTION .

CAUTION: Install piston rings in the following order:

Do not use a piston ring expander during this step.
1. Oil ring expander.
2. Lower oil ring side rail.
3. Upper oil ring side rail.
4. No. 2 Intermediate piston ring.
5. No. 1 Upper piston ring.
Fig 2: Installing Side Rail
Courtesy of CHRYSLER LLC

1 - SIDE RAIL END
Install the side rail (1) by placing one end between the piston ring groove and the expander. Hold end firmly and press down the portion to be installed until side rail is in position.

Fig 3: Removing/Installing Upper & Lower Intermediate Rings
Courtesy of CHRYSLER LLC

The No. 1 and No. 2 piston rings have a different cross section. Ensure that when the No. 2 ring is installed, it is installed with manufacturers I.D. mark facing up, towards top of the piston. See DESCRIPTION .
Install upper side rail first and then the lower side rail.
Install the No. 2 piston ring and then No. 1 piston ring.

Fig 4: Identifying Proper Piston Ring End Gap Position
Courtesy of CHRYSLER LLC
Position piston ring end gaps.
Position oil ring expander gap at least 45° from the side rail gaps but not on the piston pin center or on the thrust direction. Staggering ring gap is important for oil control.