Chrysler Town, Dodge Caravan. Manual — part 67
SPECIAL TOOLS
COOLING SYSTEM
Hose Clamp Pliers 6094
Hose Clamp Pliers 8495A
Cooling System Tester 7700
Coolant Refractometer 8286
DRB III
T
with PEP Module – OT-CH6010A
Belt Tension Gauge Adapter 8371
Belt Tension Gauge 7198A
7 - 6
COOLING
RS
COOLING (Continued)
ACCESSORY DRIVE
TABLE OF CONTENTS
page
page
DRIVE BELTS
DIAGNOSIS AND TESTING - ACCESSORY
. . . . . . . . . . . . . . . . . . . . . . . . . . 7
DRIVE BELTS - 2.4L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
. . . . . . . . . . . . . . . . . . . . . . . . . . . 9
. . . . . . . . . . . . . . . . . . . . . . . . . 10
. . . . . . . . . . . . . . . . . . . . . . . . 10
BELT TENSIONER - 2.4L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
. . . . . . . . . . . . . . . . . . . . . . . . . 10
DRIVE BELTS - 3.3/3.8L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
. . . . . . . . . . . . . . . . . . . . . . . . . . 11
. . . . . . . . . . . . . . . . . . . . . . . . . 12
BELT TENSIONER - 3.3/3.8L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
. . . . . . . . . . . . . . . . . . . . . . . . . 12
DRIVE BELTS
DIAGNOSIS AND TESTING - ACCESSORY
DRIVE BELT
CONDITION
POSSIBLE CAUSES
CORRECTIONS
INSUFFICIENT ACCESSORY
OUTPUT DUE TO BELT SLIPPAGE
1. Belt too loose
1. (a) Replace belt (auto-tensioned
belts)
(b) Adjust power steering belt
tension (4 cyl. engine)
2. Belt excessively glazed or worn
2. Replace and tighten as specified
BELT SQUEAL WHEN
ACCELERATING ENGINE
1. Belts too loose
1. (a) Replace belt (auto-tensioned
belts)
(b) Adjust power steering belt
tension (4 cyl. engine)
2. Belt glazed
2. Replace belts
BELT SQUEAK AT IDLE
1. Belts too loose
1. (a) Replace belt (auto-tensioned
belts)
(b) Adjust power steering belt
tension (4 cyl. engine)
2. Dirt or paint imbedded in belt
2. Replace belt
3. Non-uniform belt
3. Replace belt
4. Misaligned pulleys
4. Align accessories
5. Non-uniform groove or eccentric
pulley
5. Replace pulley
RS
ACCESSORY DRIVE
7 - 7
CONDITION
POSSIBLE CAUSES
CORRECTIONS
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. (a) Replace belt (auto-tensioned
belts.)
(b) Adjust power steering belt
tension (4 cyl. engine)
3. Misaligned pulleys
3. Align accessories
4. Non-uniform groove or eccentric
pulley
4. Replace pulley
DRIVE BELTS - 2.4L
STANDARD PROCEDURE - CHECKING POWER
STEERING BELT TENSION
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 belt center span location
shown in (Fig. 1).
(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.
ACCESSORY DRIVE BELT TENSION CHART -
2.4L
Accessory Drive Belt
Belt Tension
Air Conditioning
Compressor/Generator
Dynamic Tensioner
Power Steering Pump
New
178 - 212
Hz
Used*
145 - 178
Hz
*A belt is considered used after 15 minutes of run-in
time.
REMOVAL
GENERATOR AND AIR CONDITIONING BELT
(1) Raise vehicle on hoist.
(2) Remove the drive belt shield (Fig. 7).
WARNING: DO NOT ALLOW DRIVE BELT TEN-
SIONER TO SNAP BACK, AS DAMAGE TO TEN-
SIONER
AND/OR
PERSONAL
INJURY
COULD
RESULT.
Fig. 1 Power Steering Belt - Center Span Location
1 - POWER STEERING BELT CENTER SPAN LOCATION
7 - 8
ACCESSORY DRIVE
RS
DRIVE BELTS (Continued)
(3) Position a wrench on the belt tensioner lug
(Fig. 2).
(4) Release belt tension by rotating the tensioner
clockwise (Fig. 2).
(5) Remove belt.
(1) Carefully return tensioner to its relaxed posi-
tion.
POWER STEERING PUMP
(1) From top of the vehicle, loosen locking nuts (1)
and (2) (Fig. 3).
(2)
From under the vehicle, loosen the pivot bolt
(3). Loosen adjusting bolt (4) until belt can be
removed.
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. 4).
NOTE: Do not use any type of belt dressing or
restorer on Poly-V Belts.
Fig. 2 A/C & GENERATOR BELT TENSION RELEASE
1 - BELT TENSIONER
2 - WRENCH
Fig. 3 Power Steering Pump Belt
1 - REAR LOCKING NUT
2 - FRONT LOCKING NUT
3 - PIVOT BOLT
4 - ADJUSTING BOLT
Fig. 4 Drive Belt Wear Pattern
1 - NORMAL CRACKS - BELT OK
2 - NOT NORMAL CRACKS - REPLACE BELT
RS
ACCESSORY DRIVE
7 - 9
DRIVE BELTS - 2.4L (Continued)
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст