OIL PUMP INSPECTION

PROCEDURE


  1. INSPECT FRONT OIL PUMP BODY AND GEAR SUB-ASSEMBLY

    A004OQ0

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

      Note

      Be careful not to damage the lip of the oil seal.

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

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

    2. Using a feeler gauge, measure the clearance.

      Standard clearance
      0.08 to 0.15 mm (0.00315 to 0.00590 in.)
      Maximum clearance
      0.15 mm (0.00590 in.)

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

    3. A004TXY

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

      Standard side clearance
      0.025 to 0.04 mm (0.000984 to 0.00157 in.)
      Maximum side clearance
      0.04 mm (0.00157 in.)

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

      Drive Gear Thickness
      Mark Thickness
      1 11.547 to 11.555 mm (0.4546 to 0.4549 in.)
      2 11.555 to 11.563 mm (0.4549 to 0.4552 in.)
      3 11.564 to 11.571 mm (0.4553 to 0.4556 in.)
      4 11.572 to 11.579 mm (0.4556 to 0.4559 in.)
      5 11.580 to 11.587 mm (0.4559 to 0.4562 in.)
      Driven Gear Thickness
      Mark Thickness
      1 11.547 to 11.555 mm (0.4546 to 0.4549 in.)
      2 11.555 to 11.563 mm (0.4549 to 0.4552 in.)
      3 11.564 to 11.571 mm (0.4553 to 0.4556 in.)
      4 11.572 to 11.579 mm (0.4556 to 0.4559 in.)
      5 11.580 to 11.587 mm (0.4559 to 0.4562 in.)

  3. INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY

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    1. Using a dial indicator, measure the inside diameter of the oil pump body bushing.

      Standard inside diameter
      43.113 to 43.138 mm (1.697 to 1.698 in.)
      Maximum inside diameter
      43.188 mm (1.70 in.)

      If the inside diameter is more than the maximum, replace the oil pump body sub-assembly.

  4. INSPECT STATOR SHAFT ASSEMBLY

    A004NRD

    1. Using a dial indicator, measure the inside diameter of the stator shaft bushing.

      Standard inside diameter
      22.500 to 22.526 mm (0.886 to 0.887 in.)
      Maximum inside diameter
      22.570 mm (0.889 in.)

      If the inside diameter is more than the maximum, replace the stator shaft assembly.