Chrysler RAM TRUCK 2500 1994 Service Manual page 298

• COOLING SYSTEM 7 - 43
(13) Lift radiator straight up and out of engine
compartment. The bottom of the radiator is equipped
with two alignment dowels that fit into holes in the
lower radiator support panel (Fig. 66). Rubber bis­
cuits (insulators) are installed to these dowels. Take
care not to damage cooling fins or tubes on the radi­
ator and air conditioning condenser when removing.
RADIATOR INSTALLATION
(1) Position fan shroud over the fan blades rear­
ward towards engine.
(2) Install rubber insulators to alignment dowels at
lower part of radiator.
(3) Lower the radiator into position while guiding
the two alignment dowels into lower radiator sup­
port. Different alignment holes are provided in the
lower radiator support for each engine application.
(4) Install two upper radiator mounting bolts.
Tighten bolts to 11 N-m (95 i n . lbs.) torque.
(5) 3.9L V-6 or 5.2L/5.9L V-8 Engines: Position the
rubber shields to the sides of radiator. Install the
plastic clips retaining the rubber shields to the sides
of radiator.
(6) Connect both radiator hoses. Refer to previous
CAUTION and install hose clamps.
(7) I f equipped, connect transmission oil cooler
lines to radiator tank. Refer to Group 21, Transmis­
sions for procedures.
(8) Install windshield washer reservoir tank. Refer
to Group 8K.
(9) Position fan shroud to flanges on sides of radi­
ator. Install fan shroud mounting bolts (Fig. 65).
Tighten bolts to 6 N-m (50 i n . lbs.) torque.
(10) Diesel Engines: Install metal clips to top of
fan shroud.
(11) A l l engines: Install coolant reserve/overflow
tank hose to radiator filler neck nipple.
(12) A l l engines except 8.0L V-10: Install coolant
reserve/overflow tank to fan shroud (fits into T-slots
on shroud).
(13) Connect throttle cable to fan shroud.
(14) Install negative battery cable(s) to battery(s).
(15) Diesel engine: Install positive battery cable to
top of radiator. Tighten radiator-to-battery cable
mounting nuts.
(16) Position heater controls to full heat position.
(17) Fill cooling system with coolant. Refer to Re­
filling Cooling System i n this group.
(18) Operate engine until i t reaches normal tem­
perature. Check cooling system and automatic trans­
mission (if equipped) fluid levels.
COOLING SYSTEM HOSES
Rubber hoses route coolant to and from the radia­
tor, intake manifold and heater core. Radiator lower
hoses are spring-reinforced to prevent collapse from
water pump suction at moderate and high engine
speeds.
Inspect the hoses at regular intervals. Replace
hoses that are cracked, feel brittle when squeezed or
swell excessively when system is pressurized. The
use of molded replacement hoses is recommended.
When performing a hose inspection, inspect radiator
lower hose for proper position and condition of
spring.
WARNING: CONSTANT TENSION H O S E C L A M P S
A R E U S E D ON MOST COOLING S Y S T E M H O S E S .
WHEN REMOVING OR INSTALLING, U S E ONLY
T O O L S D E S I G N E D F O R SERVICING THIS T Y P E O F
CLAMP, S U C H A S S P E C I A L CLAMP T O O L (NUMBER
6094) (FIG. 67). SNAP-ON CLAMP T O O L (NUMBER
HPC-20) MAY B E U S E D F O R L A R G E R C L A M P S . A L ­
WAYS W E A R S A F E T Y G L A S S E S WHEN S E R V I C I N G
CONSTANT TENSION C L A M P S .
CAUTION: A number or letter is stamped into the
tongue of constant tension clamps (Fig. 68). If re­
placement is necessary, u s e only an original equip­
ment clamp with a matching number or letter.
Ordinary worm gear type hose clamps (when
equipped) can be removed with a straight screw­
driver or a hex socket. To prevent damage to
hoses or clamps, the hose clamps should be
tightened to 4 N-m (34 in. lbs.) torque. Do not
over tighten hose clamps.
For all vehicles: I n areas where specific routing
clamps are not provided, be sure that hoses are posi­
tioned with sufficient clearance. Check clearance
from exhaust manifolds and pipe, fan blades, drive
belts and sway bars. Improperly positioned hoses can
be damaged, resulting i n coolant loss and engine
overheating.
HOSE CLAMP HOSE
J9207-36
Fig. 67 Hose Clamp Tool—Typical
COOLING SYSTEM FAN—GAS ENGINES
Also refer to Viscous Fan Drive i n this group for
additional information.