Drive Belts Adjustment; Fan And Alternator Belt Adjustment - Jeep 1979 CJ-5 Technical & Service Manual

1C-14 COOLING SYSTEMS
The Tempatrol may be disconnected as described
above as a t e m p o r a r y cure for overheating while driving
with a snow plow mounted on the vehicle. A snow plow
restricts airflow past the radiator. If the Tempatrol bi-
metal spring is not heated, the unit will free-wheel and
will not pull enough air through the radiator for proper
cooling.
NOTE: After snow plow removal, the bimetal spring
end should be reconnected for proper fan operation.
ADJUSTMENTS
Drive Belts
Inspect drive belts frequently for defects such as fray-
ing or cracking.
CAUTION: Do not use any commercial belt dressing or
oil-based lubricant on any drive belt Do not dress the
sides of any drive belt with a file or other abrasive. Each
belt has 5 or 6 tensile members wrapped around it If
these members are cut, the belt could fail.
Drive belts are adjusted by moving the driven com-
ponent in its mount to achieve desired tension. In some
cases, a belt may drive several components. It is neces-
sary to loosen and move only one component.
Fan and Alternator Belt
Adjustment
Six-Cylinder Without Mr Conditioning and All Eight-Cylinder
NOTE: Eight-cylinder engines equipped with air condi-
tioning use a matched pair of belts to drive the AC
compressor and alternator. Replace these belts in sets
only. Do not replace individual belts. When checking
belt tension, check one belt, not both together, or in-
correct tension will be indicated.
(1) Loosen alternator pivot mount bolt and alterna-
tor adjusting bolt.
(2) Adjust belt using pry bar on six-cylinder engines
(fig. 1C-12) or a 1-inch, open-end wrench on eight-cylin-
der engines (fig. 1C-13). Tighten adjusting screw enough
to retain alternator position.
(3) Check belt tension using Tension Gauge J-23600
(fig. 1C-14). Correct if necessary.
(4) Tighten adjusting screw to 18 foot-pounds (24
N # m ) torque and mounting screw to 28 foot-pounds (38
N*m) torque.
Six-Cylinder Engine with Air Conditioning
(1) Loosen alternator lower adjusting screw.
(2) Loosen alternator bracket adjusting screw.
(3) Loosen aternator upper pivot screw.
(4) Adjust alternator using a suitable pry bar.
Hi. 1C-11 Alternator Drive Belt Adjustment—Six-Cylinder
Fig. 1C-13 Alternator Drive Belt Adjustment—Eight-Cylinder
Tighten adjusting screw enough to retain alternator po-
sition (fig. 1C-15).
(5) Check belt tension using Tension Gauge J-23600
(fig. 1C-14). Correct if necessary.
(6) Tighten adjusting screw to 18 foot-pounds (24
N*m) torque , mounting screws to 28 foot-pounds (38
N«m) torque, and back idler, if equipped, to 33 foot-
pounds (45 N®m) torque.