OIL PUMP INSPECTION

PROCEDURE


  1. INSPECT OIL PUMP ASSEMBLY

    A0053P8

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

      Note

      Be careful not to damage the oil seal lip.

  2. INSPECT CLEARANCE OF OIL PUMP ASSEMBLY

    A005800

    1. Push the driven gear to one side of the body. Using a feeler gauge, measure the clearance.

      Standard body clearance
      0.10 to 0.17 mm (0.00394 to 0.00669 in.)
      Maximum body clearance
      0.17 mm (0.00669 in.)

      If the body clearance is more than the maximum, replace the drive gear, driven gear or oil pump body.

    2. A0054LA

      Measure the tip clearance between the driven gear teeth and drive gear teeth.

      Standard tip clearance
      0.07 to 0.15 mm (0.00276 to 0.00591 in.)
      Maximum tip clearance
      0.15 mm (0.00591 in.)

      If the tip clearance is more than the maximum, replace the drive gear, driven gear or oil pump body.

    3. A00592B

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

      Standard side clearance
      0.02 to 0.05 mm (0.000787 to 0.00197 in.)
      Maximum side clearance
      0.05 mm (0.00197 in.)
      Drive Gear Thickness
      Mark Thickness
      1 10.690 to 10.699 mm (0.4209 to 0.4212 in.)
      2 10.700 to 10.709 mm (0.4213 to 0.4216 in.)
      3 10.710 to 10.720 mm (0.4217 to 0.4220 in.)
      4 10.721 to 10.730 mm (0.4221 to 0.4224 in.)
      5 10.731 to 10.740 mm (0.4225 to 0.4228 in.)
      Driven Gear Thickness
      Mark Thickness
      1 10.690 to 10.699 mm (0.4209 to 0.4212 in.)
      2 10.700 to 10.709 mm (0.4213 to 0.4216 in.)
      3 10.710 to 10.720 mm (0.4217 to 0.4220 in.)
      4 10.721 to 10.730 mm (0.4221 to 0.4224 in.)
      5 10.731 to 10.740 mm (0.4225 to 0.4228 in.)

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

    A0054XX

    1. Using a caliper gauge, measure the inside diameter of the oil pump body bush.

      Standard inside diameter
      38.11 to 38.14 mm (1.501 to 1.502 in.)
      Maximum inside diameter
      38.19 mm (1.504 in.)

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

  4. INSPECT STATOR SHAFT ASSEMBLY

    A00588O

    1. Using a caliper gauge, measure the inside diameter of the stator shaft bushes.

      Standard inside diameter
      20.50 to 21.53 mm (0.847 to 0.848 in.)
      Maximum inside diameter
      21.57 mm (0.849 in.)

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