Dodge 2000 DURANGO Service Manual page 241

DN
REMOVAL AND INSTALLATION (Continued)
REMOVAL
CAUTION: DO NOT LET TENSIONER ARM SNAP
BACK TO THE FREEARM POSITION, SEVER DAM-
AGE MAY OCCUR TO THE TENSIONER.
Belt tension is not adjustable. Belt adjustment is
maintained by an automatic ( spring load ) belt ten-
sioner.
(1) Disconnect negative battery cable from battery.
(2) Rotate belt tensioner until it contacts it's stop.
Remove belt, then slowly rotate the tensioner into
the freearm position. (Fig. 59).
Fig. 59 Belt Routing—4.7L
1 – GENERATOR PULLEY
2 – ACCESSORY DRIVE BELT
3 – POWER STEERING PUMP PULLEY
4 – CRANKSHAFT PULLEY
5 – IDLER PULLEY
6 – TENSIONER
7 – A/C COMPRESSOR PULLEY
8 – WATER PUMP PULLEY
INSTALLATION
Belt tension is not adjustable. Belt adjustment is
maintained by an automatic ( spring load ) belt ten-
sioner.
(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 (Fig. 59).
(2) Install new belt (Fig. 59). 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.
(3) With the drive belt installed, inspect the belt
wear indicator (Fig. 60). On 4.7L Engines only, the
gap between the tang and the housing stop ( mea-
surement A ) must not exceed 24 mm (.94 inches). If
the measurement exceedes this specification replace
the serpentine accessory drive belt.
Fig. 60 Accessory Drive Belt Wear Indicator—4.7L
1 – AUTOMATIC TENSIONER ASSEMBLY
AUTOMATIC BELT TENSIONER—5.2L/5.9L
ENGINE
REMOVAL
(1) Remove accessory drive belt.
(2) Disconnect wiring and secondary cable from
ignition coil.
(3) Remove two mounting bolts and ignition coil
from engine (Fig. 61).
(4) Remove mounting bolt and tensioner assembly
from engine (Fig. 61).
WARNING: BECAUSE OF HIGH SPRING PRES-
SURE, DO NOT ATTEMPT TO DISASSEMBLE AUTO-
MATIC TENSIONER. UNIT IS SERVICED AS AN
ASSEMBLY (EXCEPT FOR PULLEY).
(5) Remove pulley bolt. Remove pulley from ten-
sioner.
INSTALLATION
(1) Install pulley and pulley bolt to tensioner.
Tighten bolt to 61 N·m (45 ft. lbs.).
(2) Position tensioner assembly and install mount-
ing screw tighten screw to 67 N·m (50 ft. lbs.).
COOLING SYSTEM
Engine
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