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Assembly Procedure

  1. Apply ATF to the spool.
  2. Install the spool and spring into the oil pump housing.
  3. Verify that the spool moves smoothly.
    • If not as specified, replace the oil pump.
  4. Install a new packing and the plug.

    Tightening Torque 

    1. 32-47 N.m {3.2-4.8 kgf.m, 24-34 ft.lbf} 

  5. Apply ATF to the outer and inner rotors and pump flange.
  6. Align the marks and install the outer and inner rotors.
    Fig 1: Aligning Outer & Inner Rotor Marks
    G03186157
  7. Install the oil pump flange.
  8. Mount the oil pump cover onto the oil pump housing.
  9. Tighten the bolts evenly and gradually in the order shown.

    Tightening Torque 

    1. 8.1-10.9 N.m {82-112 kgf.cm, 71.2-97.2 in.lbf} 
    Fig 2: Oil Pump Cover Bolt Tightening Sequence
    G03186158
  10. Install the oil pump shaft and verify the smooth oil pump operation.
    CAUTION:
    • Carefully install the seal rings without damaging them. If they are cut or scratched during installation, oil leakage will occur.
  11. Apply ATF to new seal rings and install them onto the oil pump cover.

    Seal Ring Inner Diameter: 

    1. 51.45 mm {2.026 in}