Water Pump 4.7L Engines - Dodge 2000 DURANGO Service Manual

DN
REMOVAL AND INSTALLATION (Continued)
Fig. 31 Coolant Return Tube—5.2L/5.9L Engines—
1 – COOLANT RETURN TUBE
2 – WATER PUMP
3 – TUBE MOUNTING BOLT
4 – O-RING
CAUTION: When installing the serpentine acces-
sory drive belt, the belt must be routed correctly. If
not, engine may overheat due to water pump rotat-
ing in wrong direction. Refer to (Fig. 32) for correct
belt routing. The correct belt with correct length
must be used.
(10) Position fan shroud and fan blade/viscous fan
drive assembly to vehicle as a complete unit.
(11) Install fan shroud.
(12) Install fan blade/viscous fan drive assembly to
water pump shaft.
(13) Fill cooling system. Refer to Cooling System—
Draining and Refilling in this group.
(14) Connect battery negative cable.
(15) Start and warm the engine. Check for leaks.

WATER PUMP 4.7L ENGINES

The water pump on 4.7L engines is bolted directly
to the engine timing chain case/cover.
A gasket is used as a seal between the water pump
and timing chain case/cover.
If water pump is replaced because of bearing/shaft
damage, or leaking shaft seal, the mechanical cooling
fan assembly should also be inspected. Inspect for
fatigue cracks, loose blades, or loose rivets that could
have resulted from excessive vibration. Replace fan if
Typical
Fig. 32 Belt Routing—5.2L/5.9L Engines
1 – IDLER PULLEY
2 – GENERATOR PULLEY
3 – A/C COMPRESSOR PULLEY
4 – IF W/OUT A/C
5 – POWER STEERING PUMP PULLEY
6 – WATER PUMP PULLEY
7 – CRANKSHAFT PULLEY
8 – AUTOMATIC TENSIONER
any of these conditions are found. Also check condi-
tion of the thermal viscous fan drive. Refer to Viscous
Fan Drive in this group.
The water pump can be removed without discharg-
ing the air conditioning system (if equipped).
REMOVAL
(1) Disconnect negative battery cable from battery.
(2) Drain cooling system. Refer to Draining Cool-
ing System in this group.
Do not waste reusable coolant. If solution is clean,
drain coolant into a clean container for reuse.
(3) The thermal viscous fan drive is attached
(threaded) to the water pump hub shaft. Remove fan/
viscous fan drive assembly from water pump by turn-
ing mounting nut counterclockwise as viewed from
front. Threads on viscous fan drive are RIGHT
HAND. Using special tool spanner wrench 6958 with
adapter pins 8346 and a suitable fan wrench loosen
the fan drive (Fig. 33). Do not attempt to remove fan/
viscous fan drive assembly from vehicle at this time.
COOLING SYSTEM 7 - 27