Jeep XJ. Manual - part 459
Check the front case mounting studs and vent
tube. The tube can be secured with Loctite 271 or
680 if loose. The stud threads can be cleaned up with
a die if necessary. Also check condition of the fill/
drain plug threads in the rear case. The threads can
be repaired with a thread chaser or tap if necessary.
Or the threads can be repaired with Helicoil stainless
steel inserts if required.
OIL PUMP/OIL PICKUP
Examine the oil pump pickup parts. Replace the
pump if any part appears to be worn or damaged. Do
not disassemble the pump as individual parts are not
available. The pump is only available as a complete
assembly. The pickup screen, hose, and tube are the
only serviceable parts and are available separately.
ADJUSTMENTS
SHIFT LINKAGE ADJUSTMENT
(1) Shift transfer case into 4L position.
(2) Raise vehicle.
(3) Loosen lock bolt on adjusting trunnion (Fig.
87).
(4) Be sure linkage rod slides freely in trunnion.
Clean rod and apply spray lube if necessary.
(5) Verify that transfer case range lever is fully
engaged in 4L position.
(6) Tighten adjusting trunnion lock bolt.
(7) Lower vehicle.
Fig. 85 Seal Contact Surface Of Yoke Slinger
1 – FRONT SLINGER (PART OF YOKE)
2 – SEAL CONTACT SURFACE MUST BE CLEAN AND SMOOTH
Fig. 86 Low Range Annulus Gear
1 – FRONT CASE
2 – LOW RANGE ANNULUS GEAR
Fig. 87 Shift Linkage
1 – TRANSFER CASE SHIFT LEVER SHAFT
2 – SEAL
3 – TRANSFER CASE SHIFT LEVER ASSEMBLY
4 – FLOORPAN
5 – TRUNNION LOCK BOLT
6 – SHIFT ROD
7 – ADJUSTING TRUNNION
8 – TORQUE SHAFT BRACKET
9 – RANGE LEVER
10 – TORQUE SHAFT ROD
11 – TORQUE SHAFT
12 – LINKAGE BRACKET
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NV231 TRANSFER CASE
XJ
CLEANING AND INSPECTION (Continued)