Chrysler Stratus RHD 1997 Interactive Electronic Service Manual page 897

9 - 60 2.4L ENGINE
SERVICE PROCEDURES (Continued)
FITTING PISTON RINGS
(1) Wipe cylinder bore clean. Insert ring and push
down with piston to ensure it is square in bore. The
ring gap measurement must be made with the ring
positioning at least 12 mm (0.50 inch) from bottom of
cylinder bore. Check gap with feeler gauge (Fig. 5).
Refer to specification in piston ring specifications
table.
Fig. 5 Piston Ring Gap
PISTON RING SPECIFICATIONS
Ring Position Ring Gap
Upper Ring 0.025 to 0.51
mm (0.0098 to
0.020 in.)
Intermediate 0.23 to 0.48
Ring mm (0.009 to
0.018 in.)
Oil Control Ring 0.25 to 0.64
mm (0.0098 to
0.025 in.)
Ring Position Groove
Clearance
Upper Ring 0.030 to 0.080
mm (0.0011 to
0.0031 in.)
Intermediate 0.025 to 0.065
Ring mm (0.0010 to
0.0026 in.)
Oil Control Ring - Three Piece. Oil Ring Side Rails
Must Be Free To Rotate After Assembly.
FEELER GAUGE
Wear Limit
0.8 mm (0.031
in.)
0.8 mm (0.031
in.)
1.0 mm (0.039
in.)
Max. Clearance
0.10 mm (0.004
in.)
0.10 mm (0.004
in.)
SPACER EXPANDER
(2) Check piston ring to groove side clearance (Fig.
6). Refer to specification in piston ring specifications
table.
Fig. 6 Piston Ring Side Clearance
PISTON RINGS—INSTALLATION
Fig. 7 Piston Ring Installation
(1) Install rings with manufacturers I.D. mark fac-
ing up, to the top of the piston (Fig. 7).
CAUTION: Install piston rings in the following
order:
a. Oil ring expander.
b. Upper oil ring side rail.
c. Lower oil ring side rail.
d. No. 2 Intermediate piston ring.
e. 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 (Fig. 8).
NO. 2 PISTON RING NO. 1 PISTON RING OIL RING FEELER GAUGE SIDE RAIL
JA