REAR SERVO
Remove and discard the servo piston seal ring (Fig.
172). Then clean the servo components with solvent
and dry with compressed air. Replace either spring if
collapsed, distorted or broken. Replace the plug and
piston if cracked, bent, or worn. Discard the servo
snap rings and use a new ones at assembly.
OIL PUMP AND REACTION SHAFT SUPPORT
(1) Clean pump and support components with sol-
vent and dry them with compressed air.
(2) Check condition of the seal rings and thrust
washer on the reaction shaft support. The seal rings
do not need to be replaced unless cracked, broken, or
severely worn.
(3) Inspect the pump and support components.
Replace the pump or support if the seal ring grooves
or machined surfaces are worn, scored, pitted, or
damaged. Replace the pump gears if pitted, worn
chipped, or damaged.
(4) Inspect the pump bushing. Then check the
reaction shaft support bushing. Replace either bush-
ing only if heavily worn, scored or damaged. It is not
necessary to replace the bushings unless they are
actually damaged.
(5) Install the gears in the pump body and mea-
sure pump component clearances as follows:
(a) Clearance between outer gear and reaction
shaft housing should be 0.010 to 0.063 mm (0.0004
to 0.0025 in.). Clearance between inner gear and
reaction shaft housing should be 0.010 to 0.063
mm (0.0004 to 0.0025 in.). Both clearances can be
measured at the same time by:
(I) Installing the pump gears in the pump
housing.
(II) Position an appropriate piece of Plasti-
gage
y
across both gears.
(III) Align the plastigage to a flat area on the
reaction shaft housing.
(IV) Install the reaction shaft to the pump
housing.
(V) Separate the reaction shaft housing from
the pump housing and measure the Plastigage
y
following the instructions supplied with it.
(b) Clearance between inner gear tooth and
outer gear should be 0.08 to 0.19 mm (0.0035 to
0.0075 in.). Measure clearance with an appropriate
feeler gauge.
(c) Clearance between outer gear and pump
housing should also be 0.010 to 0.19 mm (0.0035 to
0.0075 in.). Measure clearance with an appropriate
feeler gauge.
FRONT CLUTCH
Clean and inspect the front clutch components.
Replace the clutch discs if warped, worn, scored,
burned or charred, or if the facing is flaking off.
Replace the steel plates if heavily scored, warped, or
broken. Be sure the driving lugs on the plates are in
good condition. The lugs must not be bent, cracked or
damaged in any way.
Replace the clutch spring and spring retainer if
either is distorted, warped or broken.
Check the lug grooves in the clutch retainer. The
steel plates should slide freely in the slots. Replace
the retainer if the grooves are worn or damaged.
Check action of the check ball in the retainer (Fig.
173). The ball must move freely and not stick.
NOTE: Inspect the clutch retainer bushings care-
fully (Fig. 174). The retainer bushings are NOT ser-
viceable. It will be necessary to replace the retainer
if either bushing is scored, or worn.
Inspect the piston and retainer seal surfaces for
nicks or scratches. Minor scratches can be removed
with crocus cloth. However, replace the piston and/or
retainer if the seal surfaces are seriously scored.
Fig. 172 Rear Servo Components
Fig. 173 Front Clutch Piston Retainer Check Ball
Location
21 - 144
TRANSMISSION AND TRANSFER CASE
TJ
CLEANING AND INSPECTION (Continued)
Summary of Contents for Wrangler 1997
Page 1: ...GROUP TAB LOCATOR Service Manual Comment Forms Rear of Manual...
Page 2: ......
Page 12: ......
Page 24: ......
Page 40: ......
Page 78: ......
Page 256: ......
Page 298: ......
Page 334: ......
Page 344: ......
Page 372: ......
Page 394: ......
Page 406: ......
Page 418: ......
Page 434: ......
Page 442: ......
Page 446: ......
Page 470: ......
Page 474: ......
Page 494: ......
Page 498: ......
Page 520: ......
Page 524: ......
Page 538: ......
Page 552: ......
Page 618: ......
Page 645: ...S305 Fig 5 Cowl Panel Wiring Splices 8Oa3bb74 a z v v 3 r c a r CD CI 3 114 O z N...
Page 648: ......
Page 680: ...9 18 2 51 ENGINE TJ DESCRIPTION AND OPERATION Continued Oil Lubrication System J9509 60...
Page 717: ...TJ 4 01 ENGINE 9 55 SERVICE PROCEDURES Continued Oil Lubrication System J9509 60...
Page 767: ...TJ FRAME AND BUMPERS 13 9 SPECIFICATIONS Continued QUARTER WINDOW OPENING 80al386d...
Page 768: ...13 10 FRAME AND BUMPERS SPECIFICATIONS Continued ENGINE COMPARTMENT FWD...
Page 771: ...805fe563 a 0 4 Mo C z N n O 3 3 C O a T a 3 rn a z v 00 c 3 v rn y...
Page 840: ...19 28 STEERING TJ SPECIAL TOOLS MANUAL STEERING GEAR Remover C 41509A Puller 7794 A...
Page 846: ......
Page 896: ...SPECIAL TOOLS BODY Remover Moldings C 4829 Trim Stick C 4755 23 50 BODY TJ...
Page 1075: ...DIAGNOSIS AND TESTING NV231 DIAGNOSIS TJ TRANSMISSION AND TRANSFER CASE 21 169...
Page 1150: ......