Chrysler Sebring, Stratus sedan, Sebring Convertible. Manual — part 303
DIAGNOSIS AND TESTING - ACCESSORY
DRIVE BELTS
Satisfactory performance of the belt driven accesso-
ries depends on belt condition and proper belt tension.
ACCESSORY DRIVE BELT DIAGNOSIS
CONDITION
POSSIBLE CAUSE
CORRECTION
INSUFFICIENT ACCESSORY
OUTPUT DUE TO BELT SLIPPAGE
1. Belt too loose.
1. Adjust belt tension.
2. Belt excessively glazed or worn.
2. Replace and tighten as specified.
BELT SQUEAL WHEN
ACCELERATING ENGINE
1. Belts too loose.
1. Adjust belt tension.
2. Belts glazed.
2. Replace belts.
BELT CHIRP AT IDLE
1. Belts too loose.
1. Adjust belt tension.
2. Foreign material imbedded in
belt.
2. Replace belt.
3. Non-uniform belt.
3. Replace belt.
4. Misaligned pulley(s).
4. Align accessories.
5. Non-uniform groove or eccentric
pulley.
5. Replace pulley(s).
BELT ROLLED OVER IN GROOVE
OR BELT JUMPS OFF
1. Broken cord in belt.
1. Replace belt.
2. Belt too loose, or too tight.
2. Adjust belt tension.
3. Misaligned pulleys.
3. Align accessories.
4. Non-uniform grooves or eccentric
pulley.
4. Replace pulley(s).
STANDARD PROCEDURE - CHECKING
ACCESSORY DRIVE BELT TENSION - 2.7L
WARNING: DO NOT CHECK BELT TENSION WITH
ENGINE RUNNING.
Accessory drive belt tension can be measured with
Special Tool 8371 – Belt Tension Gauge Adapter, and
the DRBIII
t using the following procedures:
(1) Connect 8371 to the DRBIII
t following the
instructions provided with tool.
(2) Place end of microphone probe approximately
2.54 cm (1 in.) from belt at one of the belt center
span locations shown in (Fig. 3).
(3) Pluck the belt a minimum of 3 times. (Use your
finger or other suitable tool) The frequency of the
belt in hertz (Hz) will display on DRBIII
t screen.
(4) Adjust belt to obtain proper frequency (ten-
sion). Refer to ACCESSORY DRIVE BELT TENSION
CHART for belt tension specifications.
Fig. 3 Belt Center Span Locations - 2.7L
1 - POWER STEERING BELT CENTER SPAN
2 - AC/GENERATOR BELT CENTER SPAN
JR
ACCESSORY DRIVE
7 - 5
DRIVE BELTS (Continued)
2.7L ACCESSORY DRIVE BELT TENSION
CHART
Accessory
Drive Belt
Belt Tension
Air
Conditioning
Compressor/
Generator
New
185 - 235
lbs.
204 - 230
Hz
Used*
110 - 160
lbs
157 - 190
Hz
Power Steering
Pump
New
120 - 180
lbs.
122 - 170
Hz
Used*
70 - 115
lbs.
94 - 136 Hz
*A belt is considered used after 15 minutes of run-in
time.
REMOVAL
REMOVAL - 2.0L/2.4L
AIR CONDITIONING COMPRESSOR/GENERATOR
BELT
(1) Raise vehicle on hoist.
(2) Remove right front wheel and belt splash
shield.
(3) Insert a 3/8” drive breaker bar into the square
opening of the belt tensioner pivot bracket.
CAUTION: Avoid excessive force to over compress
belt tensioner. This may result in damage to the belt
tensioner.
(4) Gently apply a force to rotate belt tensioner
clockwise until the belt tensioner bottoms out and
the belt can be removed from pulleys (Fig. 4) or (Fig.
5).
(5) Remove belt.
(6) Gently release tensioner.
POWER STEERING PUMP BELT
(1) Raise vehicle on hoist.
(2) Remove right front wheel and belt splash
shield.
(3) Remove air conditioning compressor/generator
belt.
(4) Loosen pivot bolt and locking bolt/nut.
(5) Release tension on belt by moving pump
assembly inward towards engine.
(6) Remove belt.
REMOVAL - 2.7L
AIR CONDITIONING COMPRESSOR/GENERATOR
BELT
(1) Raise vehicle on hoist.
(2) Remove right front wheel and belt splash
shield.
(3) Loosen tensioner locking bolt and pivot bolt.
(4) Rotate tensioner clockwise to allow enough
slack to remove belt.
Fig. 4 Accessory Drive Belt Tensioner - 2.0L
1 - ATTACHING BOLTS
2 - HYDRAULIC TENSIONER
Fig. 5 Accessory Drive Belt Tensioner - 2.4L
1 - INSERT 3/8
9
DRIVE TOOL TO ROTATE TENSIONER
7 - 6
ACCESSORY DRIVE
JR
DRIVE BELTS (Continued)
POWER STEERING PUMP BELT
(1) Raise vehicle on hoist.
(2) Remove right front wheel and belt splash
shield.
(3) Remove the air conditioning compressor/gener-
ator belt.
(4) Loosen belt adjusting bolt. It is not necessary
to loosen the pivot bolt on the power steering pump.
There is a bushing incorporated into the power steer-
ing pump/bracket that allows it to pivot.
(5) Remove power steering belt.
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. 6).
NOTE: Do not use any type of belt dressing or
restorer on Poly-V Belts.
INSTALLATION
INSTALLATION - 2.0L/2.4L
NOTE: When installing drive belt onto pulleys, make
sure that belt is properly routed and all V-grooves
make proper contact with pulley.
AIR CONDITIONING COMPRESSOR/GENERATOR
BELT
(1) Install belt over all pulleys except for the air
conditioning compressor pulley (Fig. 7).
(2) Insert a 3/8” drive breaker bar into the square
opening of the belt tensioner pivot bracket.
CAUTION: Avoid excessive force to over compress
belt tensioner. This may result in damage to the belt
tensioner.
(3) Gently apply a force to rotate belt tensioner
clockwise until the belt tensioner bottoms out and
the belt can be installed onto air conditioning com-
pressor pulley (Fig. 4) or (Fig. 5).
(4) Install belt over air conditioning compressor
pulley.
(5) Release spring tension onto belt.
(6) Remove breaker bar from belt tensioner pivot
bracket.
(7) Install belt splash shield and right front wheel.
(8) Lower vehicle.
Fig. 6 Drive Belt Wear Pattern
1 - NORMAL CRACKS - BELT OK
2 - NOT NORMAL CRACKS - REPLACE BELT
JR
ACCESSORY DRIVE
7 - 7
DRIVE BELTS (Continued)
POWER STEERING PUMP BELT
(1) Install power steering pump belt on pulleys
(Fig. 7).
(2) Insert a 1/2” drive breaker bar into the square
opening on the power steering pump bracket.
(3) Hold clockwise pressure on power steering
pump bracket and tighten adjusting bolt/nut.
(4) Tighten pivot bolt.
(5) Install air conditioning compressor/generator
belt.
(6) Install belt splash shield and right front wheel.
(7) Lower vehicle.
INSTALLATION - 2.7L
NOTE: When installing drive belt onto pulleys, make
sure that belt is properly routed and all V-grooves
make proper contact with pulley.
AIR CONDITIONING COMPRESSOR/GENERATOR
BELT
(1) Install air conditioning compressor/generator
belt on pulleys, tensioner in slack position, slip belt
over idler last (Fig. 8).
(2) (Refer to 7 - COOLING/ACCESSORY DRIVE/
DRIVE BELTS - ADJUSTMENTS) for proper drive
belt tension adjustment.
(3) Install belt splash shield and right front wheel.
(4) Lower vehicle.
POWER STEERING PUMP BELT
(1) Install power steering belt on pulleys (Fig. 8).
(2) (Refer to 7 - COOLING/ACCESSORY DRIVE/
DRIVE BELTS - ADJUSTMENTS) for proper drive
belt tension adjustment.
(3) Install air conditioning compressor/generator
belt.
(4) Install belt splash shield and right front wheel.
(5) Lower vehicle.
ADJUSTMENTS
ADJUSTMENT - 2.7L ACCESSORY DRIVE
BELTS
NOTE: A belt is considered “used” after 15 minutes
of run time.
AIR CONDITIONING COMPRESSOR/GENERATOR
BELT TENSIONING
WARNING: DO NOT EXERT MORE THAN 190 N·m
(140 ft. lbs.) OF FORCE ON AIR CONDITIONING
COMPRESSOR/GENERATOR
BELT
TENSIONER
BRACKET DURING TENSIONING PROCEDURE.
NOTE: Ensure lower tensioner bracket bolt is finger
tight/seated to prevent bending.
NEW BELT
(1) Engage a torque wrench, with a maximum 2
inch extension in the 1/2 inch square opening of the
tensioner bracket (Fig. 9).
(2) Apply 141 N·m (104 ft. lbs.) of torque, counter-
clockwise to the tensioner bracket while tightening
the upper fastener. Torque fastener to 28 N·m (250
in. lbs.) (Fig. 9).
Fig. 7 Accessory Drive Belt System - 2.0L/2.4L
1 - GENERATOR
2 - IDLER/TENSIONER
Fig. 8 Accessory Drive Belt System - 2.7L
1 - GENERATOR
2 - IDLER/TENSIONER
7 - 8
ACCESSORY DRIVE
JR
DRIVE BELTS (Continued)
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