Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 257
5.7L/6.1L ENGINE
CAUTION: Do not let tensioner arm snap back to
the freearm position, sever damage may occur to
the tensioner.
Belt tension is not adjustable. Belt adjustment is main-
tained by an automatic, spring loaded belt tensioner.
1. Disconnect negative battery cable from battery.
2. Rotate belt tensioner (6) counterclockwise until it
contacts it’s stop. Remove belt, then slowly rotate
the tensioner into the freearm position.
3.0L DIESEL
NOTE: The belt routing schematics are published
from the latest information available at the time of
publication. If anything differs between these
schematics and the Belt Routing Label, use the
schematics on Belt Routing Label. This label is
located in the engine compartment.
CAUTION: Do not let tensioner arm snap back to
the freearm position, severe damage may occur to
the tensioner.
Belt tension is not adjustable. Belt adjustment is main-
tained by an automatic, spring loaded belt tensioner
(5).
1. Disconnect negative battery cable.
2. Rotate belt tensioner (5) until it contacts its stop.
Remove belt, then slowly rotate the tensioner (5)
into the freearm position.
7 - 32
ACCESSORY DRIVE
LX
INSTALLATION
2.7L ENGINE
Belt tension is not adjustable. Belt adjustment is main-
tained by an automatic ( spring load ) belt tensioner.
1. Check condition of all pulleys.
CAUTION: When installing the serpentine acces-
sory drive belt, the belt MUST be routed correctly.
If not, the engine may overheat due to the water
pump rotating in the wrong direction.
2. Install new belt. Route the belt around all pulleys
except the idler pulley. Rotate the tensioner arm
until it contacts it’s stop position. Route the belt
around the idler and slowly let the tensioner rotate
into the belt. Make sure the belt is seated onto all
pulleys.
ON all engines, the tensioner (5) is equipped with
an indexing tang on back of tensioner and an
indexing stop on tensioner housing. If a new belt
is being installed, tang must be within approxi-
mately 6 - 8mm (0.24 - 0.32 in.) of indexing stop (i.e. tang is approximately between the two indexing stops).
Belt is considered new if it has been used 15 minutes or less.
3. With the drive belt installed, inspect the belt wear indicator.
3.5L ENGINE
Belt tension is not adjustable. Belt adjustment is main-
tained by an automatic ( spring load ) belt tensioner.
1. Check condition of all pulleys.
CAUTION: When installing the serpentine acces-
sory drive belt, the belt MUST be routed correctly.
If not, the engine may overheat due to the water
pump rotating in the wrong direction.
2. Install new belt. Route the belt around all pulleys
except the idler pulley. Rotate the tensioner arm
until it contacts it’s stop position. Route the belt
around the idler and slowly let the tensioner rotate
into the belt. Make sure the belt is seated onto all
pulleys.
ON all engines, the tensioner (5) is equipped with
an indexing tang on back of tensioner and an
indexing stop on tensioner housing. If a new belt
is being installed, tang must be within approxi-
mately 6 - 8mm (0.24 - 0.32 in.) of indexing stop (i.e. tang is approximately between the two indexing stops).
Belt is considered new if it has been used 15 minutes or less.
3. With the drive belt installed, inspect the belt wear indicator.
LX
ACCESSORY DRIVE
7 - 33
5.7L/6.1L ENGINE
Belt tension is not adjustable. Belt adjustment is main-
tained by an automatic ( spring load ) belt tensioner.
1. Check condition of all pulleys.
CAUTION: When installing the serpentine acces-
sory drive belt, the belt MUST be routed correctly.
If not, the engine may overheat due to the water
pump rotating in the wrong direction.
2. Install new belt. Route the belt around all pulleys
except the idler pulley. Rotate the tensioner arm
until it contacts it’s stop position. Route the belt
around the idler and slowly let the tensioner rotate
into the belt. Make sure the belt is seated onto all
pulleys.
ON all engines, the tensioner (6) is equipped with
an indexing tang on back of tensioner and an
indexing stop on tensioner housing. If a new belt
is being installed, tang must be within approxi-
mately 6 - 8mm (0.24 - 0.32 in.) of indexing stop (i.e. tang is approximately between the two indexing stops).
Belt is considered new if it has been used 15 minutes or less.
3. With the drive belt installed, inspect the belt wear indicator.
3.0L DIESEL
NOTE: The belt routing schematics are published
from the latest information available at the time of
publication. If anything differs between these
schematics and the Belt Routing Label, use the
schematics on Belt Routing Label. This label is
located in the engine compartment.
Belt tension is not adjustable. Belt adjustment is main-
tained by an automatic ( spring load ) belt tensioner
(5).
1. Check condition of all pulleys.
CAUTION: When installing the serpentine acces-
sory drive belt, the belt MUST be routed correctly.
If not, the engine may overheat due to the water
pump rotating in the wrong direction.
2. Install new belt (3). Route the belt around all pul-
leys except the idler pulley. Rotate the tensioner
arm until it contacts its stop position. Route the belt around the idler and slowly let the tensioner rotate into the
belt. Make sure the belt (3) is seated onto all pulleys.
7 - 34
ACCESSORY DRIVE
LX
IDLER PULLEY
REMOVAL
2.7L ENGINE
1. Remove accessory drive belt (Refer to 7 - COOL-
ING/ACCESSORY
DRIVE/DRIVE
BELTS
-
REMOVAL).
2. Remove cover (3).
3. Remove bolt (2) and idler pulley (1).
3.5L ENGINE
1. Remove accessory drive belt (Refer to 7 - COOL-
ING/ACCESSORY
DRIVE/DRIVE
BELTS
-
REMOVAL).
2. Remove cover (3).
3. Remove bolt (2) and idler pulley (1).
LX
ACCESSORY DRIVE
7 - 35
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