Jeep 2002 WJ Service Manual page 238

WG
OIL PUMP (Continued)
Fig. 139 Oil Pump
1 - CRESCENT
2 - OIL PUMP
3 - EXTERNAL GEAR
4 - INTERNAL GEAR
5 - INLET CHAMBER
6 - PRESSURE CHAMBER
DISASSEMBLY
(1) Remove pump gears (1 and 2) (Fig. 140) from
pump housing.
Fig. 140 Oil Pump Gears
1 - OUTER PUMP ROTOR
2 - INNER PUMP ROTOR
TRANSMISSION AND TRANSFER CASE
(2) Remove the inner oil pump seal (1) (Fig. 141).
(3) Replace the outer oil pump O-ring (2) (Fig.
141).
Fig. 141 Remove Oil Pump Seals
1 - INNER OIL SEAL
2 - OUTER OIL SEAL
ASSEMBLY
(1) Install new inner oil pump seal (1) (Fig. 142).
(2) Replace O-ring (2) (Fig. 142).
Fig. 142 Install New Oil Pump Seals
1 - INNER OIL SEAL
2 - OUTER OIL SEAL
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