Jeep 1987 Wrangler Workshop Manual page 754

AUTOMATIC TRANSMISSION
DIAGNOSIS AND TESTING
d — Front Clutch: Clean and inspect all parts.
Examine the retainer and piston for scores and
scratches, the discs and plates for wear, the
return springs for collapsed coils, and the seal
rings for damage. The vent check ball in the
retainer must operate freely.
e
— Rear Clutch: Refer to the front clutch
inspection/service procedures.
f _ Planetary Gear Set: Clean and inspect the
annulus gear, planet pinion carrier assembly
and sun gear. Check for worn thrust washers,
damaged gear teeth, and excessive pinion end
clearance. Examine the bushings in the sun
gear for excessive wear.
g — Rear Band: Inspect the band for wear and
for a good bond of lining to band. Inspect the
lining for damage and wear. Replace the band if
worn or damaged.
h — Overrunning Clutch: Clean and inspect
the clutch parts for brinnelled clutch rollers or
cam, or for improperly assembled rollers or
springs. Check for collapsed springs and bent
spring retainer tabs.
i — Torque Converter: If the converter hub
seal surface or drive slots are damaged, or if
the converter contains foreign material, burnt-
oxidized fluid or debris, replace the converter.
Do not attempt to clean or flush the converter.
j — Seal Rings: Inspect the reaction shaft and
governor support seal rings for wear, cracks or
breakage. Inspect the ring grooves for nicks,
burrs or distortion. Inspect the bores in the
front clutch retainer and the output shaft sup-
port for nicks, grooves, wear, cracks or
scratches.
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