OIL PUMP INSPECTION

PROCEDURE


  1. INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY


    1. B004KW2

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

      Note

      Be careful not to damage the oil seal lip.

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


    1. Inspect the body clearance.


      1. B004KKC

        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
        0.075 to 0.145 mm (0.00296 to 0.00570 in.)
        Maximum Clearance
        0.145 mm (0.00570 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. B004J8X

        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 0.00196 in.)
        Maximum Side Clearance
        0.05 mm (0.00196 in.)
        Front Oil Pump 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)
        Front Oil Pump 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)

        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 gear and front oil pump driven gear.

  3. INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY


    1. B004MOA

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

      Standard Inside Diameter
      43.135 to 43.16 mm (1.69823 to 1.69920 in.)
      Maximum Inside Diameter
      43.16 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. B004HI7

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

      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.