Chrysler 300M Service Manual page 203

7 - 16 ACCESSORY DRIVE
DRIVE BELTS - 2.7L (Continued)
(3) Remove pivot bolt, tensioner, and spring from
front cover.
(4) Insert spring into the USED belt position on
tensioner bracket (Fig. 4).
(5) Install spring, tensioner bracket, and pivot
bolt.
(6) Install pivot bolt. Tighten only finger tight, at
this time.
(7) Using a 1/2" drive breaker bar, apply counter-
clockwise pressure until locking bolt can be installed.
(8) Install the USED belt by rotating tensioner
counterclockwise until belt can be installed on pul-
leys. See (Fig. 5) for belt routing.
(9) Release tensioner and remove breaker bar. Belt
is automatically adjusted with the tensioner's torsion
spring.
(10) Tighten tensioner locking bolt and pivot bolt
to 28 N·m (250 in. lbs.) (Fig. 2).
(11) Install generator/power steering belt. Refer to
GENERATOR/POWER STEERING BELT INSTAL-
LATION for procedure.
Fig. 5 BELT ROUTING - 2.7L
1 - IDLER
2 - IDLER
3 - GENERATOR
GENERATOR/POWER STEERING BELT
INSTALLATION
(1) Install generator/power steering belt on pul-
leys.
(2) Tighten belt adjusting bolt to proper belt ten-
sion (Fig. 1). (Refer to 7 - COOLING/ACCESSORY
DRIVE/DRIVE BELTS - ADJUSTMENTS)
(3) Tighten tensioner locking nut (Fig. 1).
ADJUSTMENTS - BELT TENSION
Use belt tension gauge, Special Tool 7198 for con-
ventional V-belts and Poly-V belts. For Special Tool
identification, (Refer to 7 - COOLING - SPECIAL
TOOLS).
Adjust the belt tension for NEW or USED belt ten-
sion applications. Refer
CHART—2.7/3.5L ENGINES.
to BELT TENSION
BELT TENSION CHART—2.7/3.5L ENGINES
POLY-V BELT
Generator/Power
Steering Belt (all
engines)
V-BELT
Air Conditioning Belt
(3.5L only)
DRIVE BELTS - 3.5L
REMOVAL
GENERATOR/POWER STEERING BELT
The Poly-V generator/power steering belt has an
adjustable tensioner pulley located on the front tim-
ing belt cover.
(1) Loosen tensioner pulley locking nut.
(2) Raise vehicle on hoist.
(3) Remove the two (2) push clips attaching lower
air shield to engine cradle. Remove air shield.
(4) Loosen tensioner adjusting bolt until the belt
can be removed.
AIR CONDITIONING BELT
(1) Remove generator/power steering drive belt to
gain access to the air conditioning drive belt. Refer to
GENERATOR/POWER STEERING BELT for proce-
dure.
(2) To remove air conditioning drive belt, first
loosen the tensioner pulley lock nut, then loosen the
adjusting screw to the tensioner pulley assembly
until the belt can be removed (Fig. 6).
CLEANING
Clean all foreign debris from belt pulley grooves.
The belt pulleys must be free of oil, grease, and cool-
ants before installing the drive belt.
INSPECTION
Belt replacement under any or all of the following
conditions is required:
• Excessive wear
• Frayed cords
• Severe glazing
Poly-V Belt system may develop minor cracks
across the ribbed side (due to reverse bending). These
minor cracks are considered normal and acceptable.
Parallel cracks are not (Fig. 7).
LH
GAUGE
New Belt: 836 ±44 N
(190 ±10 lbs.)
Used Belt: 534 N (120
lbs.)
GAUGE
New Belt: 667 ±44 N
(160 ±10 lbs.)
Used Belt: 534 N (120
lbs.)