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Inspection [04/2013 - 08/2015]: Procedure

WARNING: This page is about a different car, the 2015 Lexus IS 250 and 2014 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY 
    1. Using a caliper gauge, measure the inside diameter of the front oil pump body bushing.
      GTY471217Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard inside diameter

      38.138 mm (1.5015 in.)

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

  2. INSPECT STATOR SHAFT ASSEMBLY 
    GTY113862Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Using a caliper gauge, measure the inside diameter of the stator shaft bushing.

      Standard inside diameter

      21.527 mm (0.8475 in.)

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

  3. INSPECT CLEARANCE OF OIL PUMP ASSEMBLY 
    GTY468469Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. 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 body clearance

      0.10 to 0.17 mm (0.00394 to 0.00669 in.)

      If the body clearance is more than the standard clearance, check the front oil pump drive gear, front oil pump driven gear and front oil pump body sub-assembly.

    3. Using a feeler gauge, measure the clearance between the front oil pump driven gear teeth and front oil pump drive gear teeth.
      GTY471215Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard tip clearance

      0.070 to 0.150 mm (0.00276 to 0.00590 in.)

      If the tip clearance is more than the standard clearance, check the front oil pump drive gear, front oil pump driven gear and front oil pump body sub-assembly.

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

      Standard side clearance

      Drive Gear 

      0.030 to 0.050 mm (0.00118 to 0.00197 in.)

      Driven Gear 

      0.025 to 0.045 mm (0.00098 to 0.00177 in.)

      GTY468463Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. There are 7 different thicknesses for the oil pump drive gear and front oil pump driven gear.
      FRONT OIL PUMP DRIVE GEAR THICKNESS

      Part No. Mark Thickness
      mm (in.)
      35321-22120 0 9.946 to 9.952 (0.39157 to 0.39181)
      35321-22130 1 9.953 to 9.959 (0.39185 to 0.39209)
      35321-22140 2 9.960 to 9.966 (0.39213 to 0.39236)
      35321-22150 3 9.967 to 9.973 (0.39240 to 0.39264)
      35321-22160 4 9.974 to 9.980 (0.39268 to 0.39291)
      35321-22170 5 9.981 to 9.987 (0.39295 to 0.39319)
      35321-22180 6 9.988 to 9.994 (0.39323 to 0.39346)
      FRONT OIL PUMP DRIVEN GEAR THICKNESS

      Part No. Mark Thickness
      mm (in.)
      35322-22120 0 9.946 to 9.952 (0.39157 to 0.39181)
      35322-22130 1 9.953 to 9.959 (0.39185 to 0.39209)
      35322-22140 2 9.960 to 9.966 (0.39213 to 0.39236)
      35322-22150 3 9.967 to 9.973 (0.39240 to 0.39264)
      35322-22160 4 9.974 to 9.980 (0.39268 to 0.39291)
      35322-22170 5 9.981 to 9.987 (0.39295 to 0.39319)
      35322-22180 6 9.988 to 9.994 (0.39323 to 0.39346)

      If the side clearance is more than the standard thickness, check the front oil pump drive gear, front oil pump driven gear and front oil pump body sub-assembly.

  4. INSPECT OIL PUMP DRIVE GEAR ROTATION 
    1. Make sure that the drive gear rotates smoothly.
      GTY143666Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the oil pump assembly from the torque converter assembly.
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