Dodge ram truck 3500 1996 Service Manual page 321

B R — — ^ ^— « • COOLING SYSTEM 7 - 37
R E M O V A L A N D I N S T A L L A T I O N ( C o n t i n u e d )
sioner clockwise (as viewed from front) (Fig. 42).
When all belt tension has been relaxed, remove
accessory drive belt.
(14) 5.9L HDC-Gas Engine: Relax the tension from
the belt by rotating the tensioner counterclockwise
(as viewed from front) (Fig. 43). When all belt ten­
sion has been relaxed, remove accessory drive belt.
Fig. 43 Beit Tensioner—5.9L HDC-Gas Engine
(15) Remove the four water pump pulley-to-water
pump hub bolts (Fig. 41) and remove pulley from
vehicle,
(16) Remove the lower radiator hose and heater
hose from water pump.
(17) Loosen heater hose coolant return tube
mounting bolt (Fig. 44) (Fig. 45)and remove tube
from water pump. Discard the old tube O-ring.
(18) Remove the seven water pump mounting bolts
(Fig. 46).
(19) Loosen the clamp at the water pump end of
bypass hose (Fig. 41). Slip the bypass hose from the
water pump while removing pump from vehicle. Do
not remove the clamp from the bypass hose.
(20) Discard old gasket.
CAUTION: Do not pry the water pump at timing
chain case/cover. The machined surfaces may be
damaged resulting in leaks.
INSTALLATION
(1) Clean gasket mating surfaces.
(2) Using a new gasket, install water pump to
engine as follows: Guide water pump nipple into
bypass hose as pump is being installed. Install water
Fig. 44 Coolant Return Tube—3.9L V-6 or 5.2/5.9L
V-8 LDC-Gas Engines
Fig. 45 Coolant Return Tube—5.9L HDC-Gas Engine
pump bolts (Fig. 46). Tighten water pump mounting
bolts to 40 N-m (30 ft. lbs.) torque.
(3) Position bypass hose clamp to bypass hose.
(4) Spin water pump to be sure that pump impel­
ler does not rub against timing chain case/cover.
(5) Install a new o-ring to the heater hose coolant
return tube (Fig. 44) (Fig. 45). Coat the new o-ring
with antifreeze before installation.