Dodge RAM TRUCK 1500 1995 Service Manual page 328

7 - 58 ENGINE ACCESSORY DRIVE BELTS
B R
(1) Position drive belt over all pulleys except ten­
sioner pulley.
(2) Attach a socket/wrench to pulley mounting bolt
of automatic tensioner (Fig. 8).
(3) Rotate socket/wrench counterclockwise. Install
belt over tensioner pulley. Let tensioner rotate back
into place. Remove wrench. Be sure belt is properly
seated on all pulleys.
5.9L DIESEL
ENGINE
REMOWAL
Drive belts on diesel engines are equipped with a
spring loaded automatic belt tensioner (Fig. 9). Fig­
u r e i displays the tensioner for vehicles with­
out air conditioning.
This belt tensioner will be used on all belt configu­
rations, such as with or without air conditioning. For
more information, refer to Automatic Belt Tensioner,
proceeding in this group.
Fig. 9 Beit Tensioner—5.91 Diesel—Typical (non-A/C
shown)
(1) A 3/8 inch square hole is provided in the auto­
matic belt tensioner (Fig. 9). Attach a 3/8 inch drive-
long handle ratchet to this hole.
(2) Rotate ratchet and tensioner assembly counter­
clockwise (as viewed from front) until tension has
been relieved from belt.
(3) Remove belt from water pump pulley first.
(4) * Remove belt from vehicle.
INSTALLATION
CAUTION: When installing serpentine accessory
drive belt, belt must be routed correctly. If not, en­
gine may overheat due to water pump rotating in
wrong direction. Refer to (Figs. 5 or 6) for correct
engine belt routing. The correct belt with correct
length must be used.
(1) Position drive belt over all pulleys except wa­
ter pump pulley.
(2) Attach a 3/8 inch ratchet to tensioner.
(3) Rotate ratchet and belt tensioner counterclock­
wise. Place belt over water pump pulley. Let ten­
sioner rotate back into place. Remove ratchet. Be
sure belt is properly seated on all pulleys.
AUTOMATIC BELT TENSIONER
Drive belts on all engines are equipped with a
spring loaded automatic belt tensioner (Figs. 10, 11
or 12). This belt tensioner will be used with all belt
configurations, such as with or without power steer­
ing or air conditioning.
Caution: Do not attempt to check belt tension with
a belt tension gauge on vehicles equipped with an
automatic belt tensioner.
Fig. 10 Beit Tensioner—3.9L V-6 or 5.2/5.9L V-8
LDC-Gas Engines
On 3.9L V-6 or 5.2/5.9L V-8 LDC-gas engines, the
tensioner is equipped with an indexing arrow (Fig.
13) on back of tensioner and an indexing mark on
tensioner housing. If a new belt is being installed, ar­
row must be within approximately 3 mm (1/8 in.) of
indexing mark (point B-figure 13). Belt is considered
new if it has been used 15 minutes or less. If this
specification cannot be met, check for:
• The wrong belt being installed (incorrect length/
width)
® Worn bearings on an engine accessory (A/C com­
pressor, power steering pump, water pump, idler pul­
ley or generator)
© A pulley on an engine accessory being loose
© Misalignment of an engine accessory