OIL PUMP INSPECTION

PROCEDURE


  1. INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY


    1. A01RA74

      Turn the front oil pump drive gear with 2 screwdrivers and check that it rotates smoothly.

      Note

      Be careful not to damage the front oil pump oil seal lip.

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


    1. Inspect the body clearance:


      1. A01RC6Q

        Push the front oil pump driven gear to one side of the front oil pump body sub-assembly.

      2. Using a feeler gauge, measure the clearance.

        Standard Clearance
        0.08 to 0.15 mm (0.00315 to 0.00591 in.)
        Maximum Clearance
        0.15 mm (0.00591 in.)

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

    2. Inspect the side clearance:


      1. A01R9MM

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

        Standard Side Clearance
        0.035 to 0.05 mm (0.00138 to 0.00197 in.)
        Maximum Side Clearance
        0.05 mm (0.00197 in.)

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

        Tech Tips

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

        Front Oil Pump Drive Gear Thickness
        Part No. Mark Thickness (mm (in.))
        35321-48060 1 11.547 to 11.555 (0.45461 to 0.45492)
        35321-48070 2 11.555 to 11.563 (0.45492 to 0.45524)
        35321-48080 3 11.564 to 11.571 (0.45527 to 0.45555)
        35321-48090 4 11.572 to 11.579 (0.45559 to 0.45587)
        35321-48100 5 11.580 to 11.587 (0.45590 to 0.45618)
        Front Oil Pump Driven Gear Thickness
        Part No. Mark Thickness (mm (in.))
        35322-48060 1 11.547 to 11.555 (0.45461 to 0.45492)
        35322-48070 2 11.555 to 11.563 (0.45492 to 0.45524)
        35322-48080 3 11.564 to 11.571 (0.45527 to 0.45555)
        35322-48090 4 11.572 to 11.579 (0.45559 to 0.45587)
        35322-48100 5 11.580 to 11.587 (0.45590 to 0.45618)

  3. INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY


    1. A01RBLY

      Using a caliper gauge, measure the inside diameter of the front oil pump body sub-assembly bushing.

      Standard Inside Diameter
      43.135 to 43.160 mm (1.69822 to 1.69921 in.)
      Maximum Inside Diameter
      43.160 mm (1.69921 in.)

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

  4. INSPECT STATOR SHAFT ASSEMBLY


    1. A01RC5B

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

      Standard Inside Diameter
      22.500 to 22.526 mm (0.88583 to 0.88685 in.)
      Maximum Inside Diameter
      22.526 mm (0.88685 in.)

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