OIL PUMP DISASSEMBLY

  1. INSPECT FRONT OIL PUMP ASSEMBLY

    1. Turn the drive gear with 2 screwdrivers and make sure that it rotates smoothly.

      A011V7C

      Note

      Be careful not to damage the oil seal lip.

  2. REMOVE STATOR SHAFT ASSEMBLY

    1. Using a T30 "TORX" socket wrench, remove the 16 "TORX" bolts and stator shaft assembly from the front oil pump and gear body sub-assembly.

      A011QYW

      Note

      Keep the gears in the order of installation.

  3. INSPECT CLEARANCE OF FRONT OIL PUMP AND GEAR BODY SUB-ASSEMBLY

    1. Inspect the body clearance.

      1. Push the driven gear to one side of the body.

        A011QVS

      2. Using a feeler gauge, measure the body clearance.

        Standard clearance
        0.075 to 0.145 mm (0.00296 to 0.00570 in.)
        Maximum clearance
        0.145 mm (0.00570 in.)

        If the clearance is more than the maximum, replace the drive gear, driven gear or front oil pump and gear body sub-assembly.

    2. Inspect the side clearance.

      1. Using a straightedge and feeler gauge, measure the side clearance of both gears.

        A011UG6
        Standard side clearance
        0.025 to 0.040 mm (0.000985 to 0.00157 in.)
        Maximum side clearance
        0.04 mm (0.00157 in.)

        If the clearance is more than the maximum, replace the drive gear, driven gear or front oil pump and gear body sub-assembly.

        Tech Tips

        There are 5 different thicknesses for the drive and driven gears.

        Drive Gear Thickness
        Mark Thickness [mm (in.)]
        1 11.547 to 11.555 (0.45461 to 0.45492)
        2 11.555 to 11.563 (0.45493 to 0.45523)
        3 11.564 to 11.571 (0.45528 to 0.45555)
        4 11.572 to 11.579 (0.45559 to 0.45586)
        5 11.580 to 11.587 (0.45591 to 0.45618)
        Driven Gear Thickness
        Mark Thickness [mm (in.)]
        1 11.547 to 11.555 (0.45461 to 0.45492)
        2 11.555 to 11.563 (0.45493 to 0.45523)
        3 11.564 to 11.571 (0.45528 to 0.45555)
        4 11.572 to 11.579 (0.45559 to 0.45586)
        5 11.580 to 11.587 (0.45591 to 0.45618)

  4. REMOVE FRONT OIL PUMP DRIVE GEAR

    1. Remove the front oil pump drive gear from the front oil pump body sub-assembly.

      A011TQ0

  5. REMOVE FRONT OIL PUMP DRIVEN GEAR

    1. Remove the front oil pump driven gear from the front oil pump body sub-assembly.

      A011T5S

  6. REMOVE FRONT OIL PUMP BODY O-RING

    1. Remove the front pump body O-ring from the front oil pump body sub-assembly.

      A011UPA

  7. REMOVE FRONT OIL PUMP OIL SEAL

    1. Fix the front oil pump body sub-assembly in a vise between aluminum plates.

      A011UPQE01

      Note

      Do not overtighten the vise.

    2. Using SST, remove the front oil pump oil seal from the front oil pump body sub-assembly.

      SST
      09308-00010