Chrysler 1997 Stratus Convertible RHD Service Manual page 752

9 - 16 2.4L ENGINE
SERVICE PROCEDURES (Continued)
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.
(2) Check piston ring to groove side clearance (Fig.
6). Refer to specification in piston ring specifications
table.
PISTON RINGS—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:
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.)
between the piston ring groove and the expander.
0.10 mm (0.004
Hold end firmly and press down the portion to be
in.)
installed until side rail is in position. Do not use a
piston ring expander (Fig. 8).
side rail.
ring.
9).
from the side rail gaps but not on the piston pin cen-
ter or on the thrust direction. Staggering ring gap is
important for oil control.
SPACER EXPANDER
Fig. 6 Piston Ring Side Clearance
Fig. 7 Piston Ring Installation
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
(3) Install upper side rail first and then the lower
(4) Install No. 2 piston ring and then No. 1 piston
(5) Position piston ring end gaps as shown in (Fig.
(6) Position oil ring expander gap at least 45°
JX
NO. 2 PISTON RING NO. 1 PISTON RING OIL RING SIDE RAIL