LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2007 >> LS 460L >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle >> Automatic Transmission Unit >> Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Automatic Transmission Unit: Inspection

  1. INSPECT NO. 1 BRAKE DISC 
    Fig 1: Identifying No. 1 Brake Disc Printed Numbers
    G04948688Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Replace all discs if one of the following problems is present: 1) a disc, plate or flange is worn or burnt; 2) the lining of a disc is peeled off or discolored; or 3) grooves or printed numbers have even a little bit of damage.
      NOTE: Before assembling new discs, soak them in ATF for at least 2 hours.
  2. INSPECT FRONT PLANETARY GEAR ASSEMBLY 
    Fig 2: Measuring Front Planetary Gear Pinion Thrust Clearance
    G04948689Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Using a feeler gauge, measure the front planetary gear pinion thrust clearance.

      Standard clearance: 

      0.2 to 0.6 mm (0.008 to 0.024 in.) 

      If the clearance is not as specified, replace the front planetary gear assembly.

  3. INSPECT NO. 3 CLUTCH DISC 
    Fig 3: Identifying No. 3 Clutch Disc
    G04948690Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Replace all discs if one of the following problems is present: 1) a disc, plate or flange is worn or burnt; 2) the lining of a disc is peeled off or discolored; or 3) grooves or printed numbers have even a little bit of damage.
      NOTE: Before assembling new discs, soak them in ATF for at least 2 hours.
  4. INSPECT REVERSE CLUTCH DISC 
    Fig 4: Identifying Reverse Clutch Disc Printed Numbers
    G04948691Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Replace all discs if one of the following problems is present: 1) a disc, plate or flange is worn or burnt; 2) the lining of a disc is peeled off or discolored; or 3) grooves or printed numbers have even a little bit of damage.
      NOTE: Before assembling new discs, soak them in ATF for at least 2 hours.
  5. INSPECT REVERSE CLUTCH RETURN SPRING SUB-ASSEMBLY 
    Fig 5: Measuring Free Length Of Spring
    G04948692Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Using a vernier caliper, measure the free length of the spring together with the spring seat.

      Standard free length: 

      22.21 mm (0.8744 in.) 

      If the free length is shorter than the standard free length, replace the reverse clutch return spring sub-assembly.

  6. INSPECT OVERDRIVE CLUTCH RETURN SPRING SUB-ASSEMBLY 
    Fig 6: Measuring Free Length Of Spring
    G04948693Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Using a vernier caliper, measure the free length of the spring together with the spring seat.

      Standard free length: 

      21.09 mm (0.8303 in.) 

      If the free length is shorter than the standard free length, replace the forward clutch return spring sub-assembly.

  7. INSPECT NO. 3 CLUTCH DRUM SUB-ASSEMBLY 
    Fig 7: Measuring Inside Diameter Of Overdrive And Reverse Multiple Disc Clutch Drum Bush
    G04948694Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Using a caliper gauge, measure the inside diameter of the overdrive and reverse multiple disc clutch drum bush.

      Standard inside diameter for front side: 

      67.40 to 67.44 mm (2.6535 to 2.6551 in.) 

      Standard inside diameter for rear side: 

      55.62 to 55.64 mm (2.1898 to 2.1905 in.) 

      If the inside diameter is not as specified, replace the overdrive and reverse multiple disc clutch drum.

  8. INSPECT FORWARD MULTIPLE CLUTCH DISC 
    Fig 8: Identifying Forward Multiple Clutch Disc Printed Numbers
    G04948695Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Replace all discs if one of the following problems is present: 1) a disc, plate or flange is worn or burnt; 2) the lining of a disc is peeled off or discolored; or 3) grooves or printed numbers have even a little bit of damage.
      NOTE: Before assembling new discs, soak them in ATF for at least 2 hours.
  9. INSPECT FORWARD CLUTCH RETURN SPRING SUB-ASSEMBLY 
    Fig 9: Measuring Free Length Of Spring
    G04948696Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Using a vernier caliper, measure the free length of the spring together with the spring seat.

      Standard free length: 

      20.82 mm (0.8197 in.) 

      If the free length is shorter than the standard free length, replace the forward clutch return spring sub-assembly.

  10. INSPECT FORWARD CLUTCH DRUM SUB-ASSEMBLY 
    Fig 10: Measuring Inside Diameter Of Forward Clutch Drum Bush
    G04948697Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Using a caliper gauge, measure the inside diameter of the forward clutch drum bush.

      Standard inside diameter: 

      33.200 to 33.225 mm (1.3071 to 1.3081 in.) 

      If the inside diameter is not as specified, replace the forward clutch drum sub-assembly.

  11. INSPECT SUN GEAR INPUT DRUM SUB-ASSEMBLY 
    Fig 11: Measuring Inside Diameter Of Sun Gear Input Drum Bush
    G04948698Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Using a caliper gauge, measure the inside diameter of the sun gear input drum bush.

      Standard inside diameter: 

      45.075 to 45.100 mm (1.7746 to 1.7756 in.) 

      If the inside diameter is not as specified, replace the sun gear input drum sub-assembly.

  12. INSPECT REAR PLANETARY SUN GEAR ASSEMBLY 
    Fig 12: Measuring Inside Diameter Of Rear Planetary Sun Gear Bush
    G04948699Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Using a caliper gauge, measure the inside diameter of the rear planetary sun gear bush.

      Standard inside diameter: 

      28.700 to 28.721 mm (1.1299 to 1.1307 in.) 

      If the inside diameter is not as specified, replace the rear planetary sun gear assembly.

  13. INSPECT REAR PLANETARY GEAR ASSEMBLY 
    Fig 13: Measuring Rear Planetary Gear Pinion Long And Short Thrust Clearance
    G04948700Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Using a feeler gauge, measure the rear planetary gear pinion long and short thrust clearance.

      Standard clearance: 

      0.2 to 0.6 mm (0.008 to 0.024 in.) 

      If the clearance is not as specified, replace the rear planetary gear assembly.

    2. Using a caliper gauge, measure the inside diameter of the rear planetary gear bush.
      Fig 14: Measuring Inside Diameter Of Rear Planetary Gear Bush
      G04948701Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard inside diameter for front side: 

      71.60 to 71.63 mm (2.8189 to 2.8201 in.) 

      Standard inside diameter for rear side: 

      28.700 to 28.721 mm (1.1299 to 1.1307 in.) 

      If the inside diameter is not as specified, replace the rear planetary gear assembly.

  14. INSPECT NO. 1 1-WAY CLUTCH 
    Fig 15: Checking No. 1 1-Way Clutch
    G04948702Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Set the 1-way clutch to the rear planetary gear.
    2. Hold the rear planetary gear assembly and turn the 1-way clutch.
    3. Check that the 1-way clutch turns freely counterclockwise and locks clockwise.

      If there is a problem with the 1-way clutch, replace it.

  15. INSPECT NO. 2 BRAKE DISC 
    Fig 16: Identifying No. 2 Brake Disc Printed Numbers
    G04948703Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Replace all discs if one of the following problems is present: 1) a disc, plate or flange is worn or burnt; 2) the lining of a disc is peeled off or discolored; or 3) grooves or printed numbers have even a little bit of damage.
      NOTE: Before assembling new discs, soak them in ATF for at least 2 hours.
  16. INSPECT NO. 2 CLUTCH DISC 
    Fig 17: Identifying No. 2 Clutch Disc Printed Numbers
    G04948704Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Replace all discs if one of the following problems is present: 1) a disc, plate or flange is worn or burnt; 2) the lining of a disc is peeled off or discolored; or 3) grooves or printed numbers have even a little bit of damage.
      NOTE: Before assembling new discs, soak them in ATF for at least 2 hours.
  17. INSPECT DIRECT CLUTCH RETURN SPRING SUB-ASSEMBLY 
    Fig 18: Measuring Free Length Of Spring
    G04948705Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Using a vernier caliper, measure the free length of the spring together with the spring seat.

      Standard free length: 

      20.76 mm (0.8173 in.) 

      If the free length is shorter than the standard free length, replace the direct clutch return spring sub-assembly.

  18. INSPECT 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY 
    Fig 19: Measuring Free Length Of Spring
    G04948706Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Using a vernier caliper, measure the free length of the spring together with the spring seat.

      Standard free length: 

      23.36 mm (0.9197 in.) 

      If the free length is shorter than the standard free length, replace the 2nd brake piston return spring sub-assembly.

  19. INSPECT AUTOMATIC TRANSMISSION CASE SUB-ASSEMBLY 
    Fig 20: Measuring Inside Diameter Of Automatic Transmission Case Sleeve Bush
    G04948707Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Using a caliper gauge, measure the inside diameter of the automatic transmission case sleeve bush.

      Standard inside diameter: 

      49.07 to 49.155 mm (1.9319 to 1.9352 in.) 

      If the inside diameter is not as specified, replace the automatic transmission case sub-assembly.

scientia non olet · About LEMON Manuals