Jeep XJ. Manual — part 411
(10) Install all bolts that attach support to pump
housing. Then tighten bolts finger tight.
(11) Tighten support-to-pump bolts to required
torque as follows:
(a) Reverse pump assembly and install it in
transmission case. Position pump so bolts are fac-
ing out and are accessible.
(b) Secure pump assembly in case with 2 or 3
bolts, or with pilot studs.
(c) Tighten support-to-pump bolts to 20 N·m (15
ft. lbs.).
(d) Remove pump assembly from transmission
case.
(12) Install new oil seal in pump with Special Tool
C-4193 and Tool Handle C-4171 (Fig. 183). Be sure
seal lip faces inward.
(13) Install new seal ring around pump housing.
Be sure seal is properly seated in groove.
(14) Lubricate lip of pump oil seal and O-ring seal
with transmission fluid.
FRONT CLUTCH
DISASSEMBLY
(1) Remove waved snap ring and remove pressure
plate, clutch plates and clutch discs (Fig. 184).
(2) Compress clutch piston spring with Compressor
Tool C-3575-A (Fig. 185). Be sure legs of tool are
seated squarely on spring retainer before compress-
ing spring.
(3) Remove retainer snap ring and remove com-
pressor tool.
(4) Remove spring retainer and clutch spring. Note
position of retainer on spring for assembly reference.
(5) Remove clutch piston from clutch retainer.
Remove piston by rotating it up and out of retainer.
(6) Remove seals from clutch piston and clutch
retainer hub. Discard both seals as they are not reus-
able.
ASSEMBLY
(1) Soak clutch discs in transmission fluid while
assembling other clutch parts.
(2) Install new seals on piston and in hub of
retainer. Be sure lip of each seal faces interior of
clutch retainer.
(3) Lubricate lips of piston and retainer seals with
liberal quantity of Mopar
t Door Ease, or Ru-Glyde.
Then lubricate retainer hub, bore and piston with
light coat of transmission fluid.
(4) Install clutch piston in retainer (Fig. 186). Use
twisting motion to seat piston in bottom of retainer. A
thin strip of plastic (about 0.020” thick), can be used
to guide seals into place if necessary.
CAUTION: Never push the clutch piston straight in.
This will fold the seals over causing leakage and
clutch slip. In addition, never use any type of metal
tool to help ease the piston seals into place. Metal
tools will cut, shave, or score the seals.
Fig. 181 Hub Seal Ring Position
1 – SEAL RINGS
2 – SUPPORT HUB
Fig. 182 Assembling Reaction Shaft Support And
Pump Housing
1 – PUMP HOUSING
2 – REACTION SHAFT SUPPORT
Fig. 183 Pump Oil Seal Installation
1 – PUMP BODY
2 – PUMP SEAL
3 – SPECIAL TOOL C-4193
21 - 180
AUTOMATIC TRANSMISSION—30RH
XJ
DISASSEMBLY AND ASSEMBLY (Continued)
(5) Position spring in clutch piston (Fig. 187).
(6) Position spring retainer on top of piston spring
(Fig.
188).
Make
sure
retainer
is
properly
installed. Small raised tabs should be facing
upward. Semicircular lugs on underside of
retainer are for positioning retainer in spring.
(7) Compress piston spring and retainer with Com-
pressor Tool C-3575-A (Fig. 185). Then install new
snap ring to secure spring retainer and spring.
(8) Install clutch plates and discs (Fig. 184).
Install steel plate then disc until all plates and discs
are installed. The front clutch uses 4 clutch discs.
(9) Install pressure plate and waved snap ring
(Fig. 184).
(10) Using a suitable gauge bar and dial indicator,
measure clutch plate clearance (Fig. 189).
(a) Position gauge bar across the clutch drum
with the dial indicator pointer on the pressure
plate (Fig. 189).
(b) Using two small screw drivers, lift the pres-
sure plate and compress the waved snap-ring. This
will assure that the snap-ring is at the top of the
groove.
(c) Release the pressure plate and zero the dial
indicator.
(d) Lift the pressure plate until it contacts the
waved snap-ring and record the dial indicator read-
ing.
Clearance should be 1.70 to 3.40 mm (0.067 to
0.134 in.). If clearance is incorrect, clutch discs,
plates pressure plates and snap ring may have to be
changed.
REAR CLUTCH
DISASSEMBLY
(1) Remove thrust washer from forward side of
clutch retainer.
(2) Remove input shaft front/rear seal rings.
(3) Remove selective clutch pack snap ring (Fig.
190).
Fig. 184 Front Clutch Components
1 – RETAINER HUB SEAL
2 – CLUTCH PISTON
3 – PISTON SPRING
4 – SPRING RETAINER SNAP RING
5 – CLUTCH DISCS
6 – PRESSURE PLATE
7 – SNAP RING (WAVED)
8 – CLUTCH PLATES
9 – SPRING RETAINER
10 – PISTON SEAL
11 – FRONT CLUTCH RETAINER
XJ
AUTOMATIC TRANSMISSION—30RH
21 - 181
DISASSEMBLY AND ASSEMBLY (Continued)
(4) Remove top pressure plate, clutch discs, steel
plates, bottom pressure plate and wave snap ring
and wave spring (Fig. 190).
(5) Remove clutch piston with rotating motion.
(6) Remove and discard piston seals.
(7) Remove input shaft snap-ring (Fig. 191). It
may be necessary to press the input shaft in slightly
to relieve tension on the snap-ring
(8) Press input shaft out of retainer with shop
press and suitable size press tool. Use a suitably
Fig. 185 Compressing Front Clutch Piston Spring
1 – FRONT CLUTCH SPRING
2 – COMPRESSOR TOOL C-3575–A
3 – RETAINER SNAP RING
4 – SPRING RETAINER
Fig. 186 Front Clutch Piston Installation
1 – CLUTCH PISTON
2 – FRONT CLUTCH RETAINER
Fig. 187 Clutch Piston Spring Installation
1 – RETAINER
2 – CLUTCH SPRING
3 – PISTON
Fig. 188 Correct Spring Retainer Installed Position
1 – SMALL TABS ON RETAINER FACE UPWARD
Fig. 189 Measuring Front Clutch Pack Clearance
1 – DIAL INDICATOR
2 – WAVED SNAP-RING
3 – FRONT CLUTCH
4 – POINTER
5 – GAUGE BAR
6 – PRESSURE PLATE
21 - 182
AUTOMATIC TRANSMISSION—30RH
XJ
DISASSEMBLY AND ASSEMBLY (Continued)
sized press tool to support the retainer as close to the
input shaft as possible.
ASSEMBLY
(1) Soak clutch discs in transmission fluid while
assembling other clutch parts.
(2) Install new seal rings on clutch retainer hub
and input shaft if necessary (Fig. 192).
(a) Be sure clutch hub seal ring is fully seated in
groove and is not twisted.
(3) Lubricate splined end of input shaft and clutch
retainer with transmission fluid. Then press input
shaft into retainer. Use a suitably sized press tool to
support retainer as close to input shaft as possible.
(4) Install input shaft snap-ring (Fig. 191).
(5) Invert retainer and press input shaft in oppo-
site direction until snap-ring is seated.
(6) Install new seals on clutch piston. Be sure lip
of each seal faces interior of clutch retainer.
(7) Lubricate lip of piston seals with generous
quantity of Mopar
t Door Ease. Then lubricate
retainer hub and bore with light coat of transmission
fluid.
(8) Install clutch piston in retainer. Use twisting
motion to seat piston in bottom of retainer. A thin
strip of plastic (about 0.020” thick), can be used to
guide seals into place if necessary.
CAUTION: Never push the clutch piston straight in.
This will fold the seals over causing leakage and
clutch slip. In addition, never use any type of metal
tool to help ease the piston seals into place. Metal
tools will cut, shave, or score the seals.
Fig. 190 Rear Clutch Components
1 – PISTON SPRING
2 – REAR CLUTCH PISTON
3 – CLUTCH PISTON SEALS
4 – OUTPUT SHAFT THRUST WASHER (METAL)
5 – INPUT SHAFT SNAP RING
6 – REAR CLUTCH RETAINER
7 – INPUT SHAFT
8 – REAR CLUTCH THRUST WASHER (FIBER)
9 – CLUTCH PACK SNAP RING (SELECTIVE)
10 – TOP PRESSURE PLATE
11 – CLUTCH DISCS (4)
12 – BOTTOM PRESSURE PLATE
13 – WAVE SPRING
14 – CLUTCH PLATES (3)
15 – RETAINER SEAL RING
16 – SHAFT REAR SEAL RING (PLASTIC)
17 – SHAFT FRONT SEAL RING (TEFLON)
XJ
AUTOMATIC TRANSMISSION—30RH
21 - 183
DISASSEMBLY AND ASSEMBLY (Continued)
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