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7 - 1 8
COOLING SYSTEM
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(3) Connect radiator hoses. T i g h t e n hose clamps t o
4 N-m (35 i n . lbs.) torque.
(4) Connect transmission o i l cooler lines t o bottom
tank. T i g h t e n hose clamps t o 4 N»m (35 i n . lbs.)
torque.
(5) Position fan shroud on r a d i a t o r flange. T i g h t e n
m o u n t i n g nuts t o 11 N«m (95 i n . lbs.) torque.
(6) Open heater valve.
(7) F i l l cooling system w i t h coolant. Refer t o F i l l -
i n g Cooling System i n t h i s group.
(8) Operate engine u n t i l i t reaches n o r m a l temper-
ature. Check cooling system and automatic transmis-
sion fluid levels.
RADIATOR DRAINCOCK
SERVICE
The radiator draincock is replaceable. Unscrew the
draincock i n a clockwise direction and remove
from
radiator. I n s t a l l replacement draincock.
COOLING SYSTEM HOSES
Rubber hoses route coolant t o a n d f r o m the radia-
tor, i n t a k e manifold, and heater core (Fig. 12). Radi-
ator lower hoses are spring-reinforced t o prevent
collapse from water p u m p suction a t moderate and
h i g h engine speeds.
Inspect t h e hoses a t regular i n t e r v a l s . Replace
hoses t h a t are cracked, feel b r i t t l e w h e n squeezed or
swell excessively w h e n t h e system is pressurized.
The use of molded replacement
hoses is recom-
mended. W h e n p e r f o r m i n g a hose inspection, inspect
the radiator lower hose for proper position and con-
dition o f the spring.
RR07B68
Fig. 12 Radiator Hoses
HOSE
CLAMPS
Constant tension hose clamps are used on some
cooling system hoses. T h e clamp size is identified by
a l e t t e r stamped on the tongue. Special pliers for re-
m o v i n g a n d i n s t a l l i n g the clamps are available from
most a u t o m o t i v e jobbers.
O r d i n a r y w o r m gear type hose clamps can be r e -
moved w i t h a s t r a i g h t screwdriver or a hex socket.
T o p r e v e n t d a m a g e
t o h o s e s o r c l a m p s , these
hose c l a m p s s h o u l d b e tightened to 4.1 N»m (34
i n - l b s ) t o r q u e . D o n o t o v e r tighten hose c l a m p s .
TRANSMISSION OIL COOLER
The a u t o m a t i c transmission o i l is cooled when i t
passes t h r o u g h a cooler i n t h e radiator lower t a n k
(Fig. 13 a n d 14).
-TRANSMISSION
OIL COOLER
AUTOMATIC
TRANSMISSION
6 AND 8 CYLINDER ENGINE
RETURN LINE
RY402
Fig. 13 Top View of Transmission Oil Cooling
Circuit
COOLING TUBE
(CUT-A-WAY)
DRAIN COCK
HOSE
CLAMP
HOSE TO
COOLER LINE
HOSE TO
COOLER LINE
RY401
Fig. 14 Automatic Transmission Oil Cooler
I n case o f a leak i n the transmission o i l cooler, en-
gine coolant m a y become m i x e d w i t h transmission
fluid,
or transmission fluid m a y enter t h e engine
cooling system. B o t h cooling system and transmis-
sion should be drained a n d inspected i n t h e event
cooler is l e a k i n g .
REPLACING
OIL COOLER
IN BOTTOM
TANK
Remove r a d i a t o r . Refer to Radiator Removal i n t h i s
group. T h e servicing should be performed by a qual-
ified r e p a i r f a c i l i t y .
Once t h e repaired or replacement radiator has been
installed,
fill
t h e cooling system a n d inspect for
leaks. Refer t o " R e f i l l i n g Cooling System" and "Test-
i n g Cooling
System
For L e a k s "
sections i n t h i s
group. I f t h e transmission operates properly after re-
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