Mercedes-Benz 2005 Sprinter Service Manual page 997

VA
OIL PUMP (Continued)
Fig. 168 Oil Pump
1 - CRESCENT
2 - OIL PUMP
3 - EXTERNAL GEAR
4 - INTERNAL GEAR
5 - INLET CHAMBER
6 - PRESSURE CHAMBER
Fig. 169 Oil Pump Gears
1 - OUTER PUMP ROTOR
2 - INNER PUMP ROTOR
AUTOMATIC TRANSMISSION - NAG1 21 - 121
Fig. 170 Remove Oil Pump Seals
1 - INNER OIL SEAL
2 - OUTER OIL SEAL
ASSEMBLY
(1) Install new inner oil pump seal (1) (Fig. 171)
with Seal Installer 8902-A.
(2) Replace O-ring (2) (Fig. 171).
Fig. 171 Install New Oil Pump Seals
1 - INNER OIL SEAL
2 - OUTER OIL SEAL