OIL PUMP INSPECTION

PROCEDURE


  1. INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY


    1. B006LH9

      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. B006Q79

      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 body sub-assembly.

    3. B006QAO

      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 front oil pump drive gears and 5 front oil pump driven gears of different thicknesses.

      Front Oil Pump 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.)
      Front Oil Pump 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


    1. B006M7K

      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 (1.69823 to 1.69920 in.)
      Maximum Inside Diameter
      43.160 mm (1.69920 in.)

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

  4. INSPECT STATOR SHAFT ASSEMBLY


    1. B006NRE

      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 0.88684 in.)
      Maximum Inside Diameter
      22.526 mm (0.88684 in.)

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