Structural Collar / Cover Removal; Installation; Vibration Damper; Removal - Chrysler Concorde 2004 Service Manual

9 - 56 ENGINE
PISTON RINGS (Continued)
Fig. 92 UPPER AND INTERMEDIATE RINGS
(4) Install upper side rail first and then the lower
side rail.
The No. 1 and No. 2 piston rings have a different
cross section. Insure that the No. 2 ring is installed
with manufacturers I.D. mark (dot) facing up,
towards top of the piston (Fig. 90).
(5) Install No. 2 piston ring and then No. 1 piston
ring (Fig. 92).
(6) Position piston ring end gaps as shown in (Fig.
93).
(7) 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 impor-
tant for oil control.
Fig. 93 PISTON RING END GAP POSITION
1 - SIDE RAIL UPPER
2 - NO. 1 RING GAP
3 - PISTON PIN
4 - SIDE RAIL LOWER
5 - NO. 2 RING GAP AND SPACER EXPANDER GAP
STRUCTURAL COLLAR /
COVER

REMOVAL

(1) Raise vehicle on hoist.
(2) Remove bolts attaching structural collar to oil
pan and transmission housing (Fig. 94).
(3) Remove collar (Fig. 94).
Fig. 94 Structural Collar
1 - BOLT-HORIZONTAL
2 - BOLT-VERTICAL
3 - STRUCTURAL COLLAR

INSTALLATION

CAUTION: The collar must be tighten using this ser-
vice procedure, as damage to collar and/or oil pan
may occur.
(1) Install structural collar (Fig. 94) using the fol-
lowing tightening sequence:
a. Install the vertical collar to oil pan bolts.
Torque bolts initially to 1.1 N·m (10 in. lbs.).
b. Install the horizontal collar to transmission
bolts and torque to 55 N·m (40 ft. lbs.).
c. Starting with the center vertical bolts and
working outward, final torque bolts to 55 N·m (40 ft.
lbs.).
(2) Lower vehicle.

VIBRATION DAMPER

REMOVAL
(1) Disconnect negative cable at right strut tower.
(2) Remove upper radiator crossmember. (Refer to
23 - BODY/EXTERIOR/GRILLE OPENING REIN-
FORCEMENT - REMOVAL)
(3) Remove radiator fan. (Refer to 7 - COOLING/
ENGINE/RADIATOR FAN - REMOVAL)
LH