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Piston Rings - Installation

WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Piston Ring Installation
GC0021095Courtesy of DAIMLERCHRYSLER CORP.
1 - NO. 1 PISTON RING
2 - NO. 2 PISTON RING
3 - SIDE RAIL
4 - OIL RING
5 - SPACER EXPANDER
  1. Install rings with manufacturers I.D. mark facing up, to the top of the piston. See Fig 1.
    CAUTION: Install piston rings in the following order:
    1. Oil ring expander.
    2. Upper oil ring side rail.
    3. Lower oil ring side rail.
    4. No. 2 Intermediate piston ring.
    5. No. 1 Upper piston ring.
  2. Install the side rail 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. Do not use a piston ring expander  . See Fig 2.
  3. Install upper side rail first and then the lower side rail.
  4. Install No. 2 piston ring and then No. 1 piston ring.
    Fig 2: Installing Side Rail
    GC0021096Courtesy of DAIMLERCHRYSLER CORP.
    1 - SIDE RAIL END
  5. Position piston ring end gaps as shown in Fig 3.
  6. 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.
Fig 3: Piston Ring End Gap Position
GC0004179Courtesy of DAIMLERCHRYSLER CORP.
1 - GAP OF LOWER SIDE RAIL
2 - NO. 1 RING GAP
3 - GAP OF UPPER SIDE RAIL
4 - NO. 2 RING GAP AND SPACER EXPANDER GAP