Jeep XJ. Manual — part 359
(3) Install the pump hoses.
(4) Fill reservoir to proper level. Refer to Power
Steering Pump Initial Operation.
DISASSEMBLY AND ASSEMBLY
PUMP PULLEY
DISASSEMBLY
(1) Remove pump assembly.
(2) Remove pulley from pump with Puller C-4333
or equivalent puller (Fig. 5).
ASSEMBLY
NOTE: The pulley is marked front for installation.
(1) Replace pulley if bent, cracked, or loose.
(2) Install pulley on pump with Installer C-4063-B
or equivalent installer (Fig. 6). The pulley must be
flush with the end of the shaft. Ensure the tool and
pulley are aligned with the pump shaft.
(3) Install pump assembly.
(4) With Serpentine Belt, run engine until warm (5
min.) and note any belt chirp. If chirp exists, move
pulley outward approximately 0.5 mm (0.020 in.). If
noise increases, press on 1.0 mm (0.040 in.). Be
careful that pulley does not contact mounting
bolts.
PUMP RESERVOIR
DISASSEMBLY
(1) Remove power steering pump.
(2) Clean exterior of pump.
(3) Clamp the pump body in a soft jaw vice.
(4) Pry up tab and slide the retaining clips off (Fig.
7).
NOTE: Use new retaining clips for installation.
(5) Remove
fluid
reservoir
from
pump
body.
Remove and discard O-ring seal.
ASSEMBLY
(1) Lubricate new O-ring Seal with Mopar Power
Steering Fluid or equivalent.
Fig. 3 Pump Mounting LHD
1 – PUMP BRACKET
2 – PUMP ASSEMBLY 2.5L
3 – PUMP ASSEMBLY 4.0L
19 - 8
STEERING
XJ
REMOVAL AND INSTALLATION (Continued)
(2) Install O-ring seal in housing.
(3) Install reservoir onto housing.
(4) Slide and tap in new reservoir retainer clips
until tab locks to housing.
(5) Install power steering pump.
(6) Add power steering fluid, refer to Pump Initial
Operation.
Fig. 4 Pump Mounting 4.0L RHD
1 – BRACKET
2 – PUMP ASSEMBLY
Fig. 5 Pulley Removal
1 – POWER STEERING PUMP DRIVE PULLEY
2 – SPECIAL TOOL C-4333
Fig. 6 Pulley Installation
1 – POWER STEERING PUMP DRIVE PULLEY
2 – SPECIAL TOOL C-4063–B
XJ
STEERING
19 - 9
DISASSEMBLY AND ASSEMBLY (Continued)
SPECIFICATIONS
TORQUE CHART
DESCRIPTION
TORQUE
Power Steering Pump
Bracket to Pump . . . . . . . . . . 28 N·m (21 ft. lbs.)
Bracket to Engine . . . . . . . . . 47 N·m (35 ft. lbs.)
Flow Control Valve . . . . . . . . 75 N·m (55 ft. lbs.)
Pressure Line . . . . . . . . . . . . . 28 N·m (21 ft. lbs.)
SPECIAL TOOLS
POWER STEERING PUMP
Fig. 7 Pump Reservoir Clips
1 – RESERVOIR
2 – RETAINING CLIPS
Analyzer Set, Power Steering Flow/Pressure 6815
Adapters, Power Steering Flow/Pressure Tester
6893
Puller C-4333
Installer, Power Steering Pulley C-4063B
19 - 10
STEERING
XJ
DISASSEMBLY AND ASSEMBLY (Continued)
POWER STEERING GEAR
TABLE OF CONTENTS
page
page
DESCRIPTION AND OPERATION
POWER STEERING GEAR . . . . . . . . . . . . . . . . . . 11
DIAGNOSIS AND TESTING
POWER STEERING GEAR LEAKAGE . . . . . . . . . 11
STEERING GEAR . . . . . . . . . . . . . . . . . . . . . . . . 12
HOUSING END PLUG . . . . . . . . . . . . . . . . . . . . . 12
PITMAN SHAFT/SEALS/BEARING . . . . . . . . . . . . 12
SPOOL VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
RACK PISTON AND WORM SHAFT . . . . . . . . . . . 16
ADJUSTMENTS
STEERING GEAR . . . . . . . . . . . . . . . . . . . . . . . . 19
SPECIFICATIONS
SPECIAL TOOLS
POWER STEERING GEAR. . . . . . . . . . . . . . . . . . 21
DESCRIPTION AND OPERATION
POWER STEERING GEAR
DESCRIPTION
The power steering gear is a recirculating ball type
gear with a 14:1 ratio.
OPERATION
The gear acts as a rolling thread between the
worm shaft and rack piston. The worm shaft is sup-
ported by a thrust bearing at the lower end and a
bearing assembly at the upper end. When the worm
shaft is turned the rack piston moves. The rack pis-
ton teeth mesh with the pitman shaft. Turning the
worm shaft turns the pitman shaft, which turns the
steering linkage.
CAUTION: Components attached with a nut and
cotter pin must be torqued to specification. Then if
the slot in the nut does not line up with the cotter
pin hole, tighten nut until it is aligned. Never loosen
the nut to align the cotter pin hole.
DIAGNOSIS AND TESTING
POWER STEERING GEAR LEAKAGE
XJ
STEERING
19 - 11
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