Jeep J-10 Series 1982 Technical & Service Manual page 203

Condition
LONGITUDINAL
BELT CRACKING
(CRACKS BETWEEN
TWO RIBS)
BELT SLIPS
"GROOVE JUMPING"
(BELT DOES NOT
MAINTAIN CORRECT
POSITION ON
PULLEY, OR TURNS
OVER AND/OR RUNS
OFF PULLEYS)
BELT BROKEN
(NOTE: IDENTIFY
AND CORRECT
PROBLEM BEFORE
NEW BELT IS
INSTALLED)
COOLING SYSTEMS 1C-29
Serpentine Drive Belt Diagnosis
Possible Cause
1) Belt has mistracked from pulley
groove.
2) Pulley groove tip has worn away
rubber to tensile member.
1) Belt slipping because of
insufficient tension.
2) Belt or pulley subjected to
substance (belt dressing, oil,
ethylene glycol) that has reduced
friction.
3) Driven component bearing failure.
4) Belt glazed and hardened from
heat and excessive slippage.
1) Insufficient belt tension.
2) Pulley(s) not within design
tolerance.
3) Foreign object(s) in grooves.
4) Excessive belt speed.
5) Pulley misalignment.
6) Belt-to-pulley profile mismatched.
7) Belt coralline is distorted.
1) Excessive tension.
2) Tensile members damaged during
belt installation.
3) Belt turnover.
4) Severe misalignment.
5) Bracket, pulley, or bearing
failure.
Correction
(1) Replace belt.
(2) Replace belt.
(1) Adjust tension.
(2) Replace belt and clean pulleys.
(3) Replace faulty component bearmg.
(4) Replace belt.
(1) Adjust belt tension.
(2) Replace pulley(s).
(3) Remove foreign objects from
grooves.
(4) Avoid excessive engineacceleration.
(5) Align pulley(s).
(6) Install correct belt.
(7) Replace belt.
(1) Replace belt and adjust tension
to specification.
(2) Replace belt.
(3) Replace belt.
(4) Align pulley(s).
(5) Replace defective component and
belt.
81102B