Automatic Belt Tensioner; Automatic Transmission Oil Coolers- Diesel Engine; Automatic Transmission Oil Coolers - Dodge ram truck 3500 1996 Service Manual

B R
C O O L i l i SYSTEM 7 - 7
D E S C R I P T I O N A N D O P E R A T I O N (Continued)
8.0L V-10 Engine: The air-to-oil cooler is located
in front of and to the left side of the radiator (Fig.
11). This secondary cooler is supplied as standard
equipment on models equipped with the 8.0L V-10
engine and an automatic transmission.
RADIATOR
SUPPORT
OIL C O O L E R
M O U N T I N G
BOLTS (3) J9407-41
Fig. 11 Air-To-Oil Cooler—8.0L V-10 Engine
The oil coolers on all gas powered engines operate
in conjunction with the internal radiator mounted
main oil cooler. The transmission oil is routed
through the main cooler first, then the optional
cooler, before returning to the transmission.
AUTOMATIC TRANSMISSION OIL C O O L E R S -
DIESEL ENGINE
All diesel models equipped with an automatic
transmission are equipped with both a main water-
to-oil cooler and a separate air-to-oil cooler. Both cool­
ers are supplied as standard equipment on diesel
engine powered models when equipped with an auto­
matic transmission.
Transmission oil is cooled when it passes through
these coolers.
The main water-to-oil transmission oil cooler is
mounted to a bracket on the turbocharger side of the
engine (Fig. 12).
The air-to-oil cooler is located in front of and to the
left side of the radiator (Fig. 13).
The diesel engine is not equipped with an internal
radiator mounted oil cooler.
AUTOMATIC BELT TENSIONER
Drive belts on all engines are equipped with a
spring loaded automatic belt tensioner (Fig. 14) (Fig.
QUICK-
M O U N T I N G C O N N E C T
NUTS (2) FITTINGS (2) J9407-42
Fig. 13 Air-To-Oil Cooler—Diesel Engine
15) (Fig. 16). This belt tensioner will be used with all
belt configurations, such as with or without power
steering or air conditioning.
CAUTION: Do not attempt to check belt tension
with a belt tension gauge on vehicles equipped with
an automatic belt tensioner.
On 3.9L V-6 or 5.2/5.9L V-8 LDC-gas engines, the
tensioner is equipped with an indexing arrow (Fig.
17) on back of tensioner and an indexing mark on
tensioner housing. I f a new belt is being installed,
arrow must be within approximately 3 mm (1/8 in.)
of indexing mark (point B-) (Fig. 17). Belt is consid-