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Power Steering Gear: Reassembly

NOTE: When using a vise, do not overtighten it.
  1. Coat parts indicated by arrows with power steering fluid or molybdenum disulfide lithium base grease (See  COMPONENTS  )  .
  2. Install steering rack  .
    1. Install SST to the rack.
      1. SST 09631-16020
      2. Fig 1: Using SST To Protect Rack Teeth
        G01084728Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: If necessary, scrape the burrs off the rack teeth end and burnish.
    2. Coat SST with power steering fluid.
    3. Install the steering rack into the rack housing.
    4. Remove the SST.
      1. SST 09631-16020
  3. Install oil seal  .
    1. To prevent oil seal lip damage, wind vinyl tape on the steering rack end, and apply power steering fluid.
    2. Coat a new oil seal lip with power steering fluid.
    3. Install the oil seal by pushing it into the rack housing without tilting.
    4. Fig 2: Installing Oil Seal
      G01084729Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NOTE: Make sure to install the oil seal facing in the correct direction.
  4. Install cylinder end stopper  .
    1. Using SST and a hammer, drive in the cylinder end stopper.
      1. SST 09612-22011
        Fig 3: Installing Cylinder Head End Stopper
        G01084730Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using snap ring pliers, install a new snap ring to the rack housing.
  5. Air tightness test  .
    1. Install SST to the rack housing.
      1. SST 09631-12071
      2. Fig 4: Displaying Air Tightness Test
        G01084731Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Apply 53 kPa (400 mm Hg, 15.75 in. Hg) of vacuum for about 30 seconds.
    3. Check that there is no change in the vacuum.

    If there is a change in the vacuum, check the installation of the oil seals.

  6. Install control valve assembly  .

    Install the control valve assembly into the rack housing.

  7. Install upper bearing of control valve assembly  .
    1. Coat a new bearing with molybdenum disulfide lithium base grease.
    2. Using SST, press in the bearing to the rack housing.
      1. SST 09612-22011
  8. Install upper oil seal of control valve assembly  .
    1. Coat a new oil seal lip with power steering fluid.
      Fig 5: Identifying Bearing & SST
      G01084732Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using SST, press in the oil seal.
      1. SST 09612-22011
      NOTE: Make sure to install the oil seal facing in the correct direction.
    3. Using snap ring pliers, install a new snap ring to the rack housing.
      Fig 6: Identifying Oil Seal & SST
      G01084733Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. Install self-locking nut  .
    1. Using SST, stop the control valve shaft rotating and install a new self- locking nut.
      1. SST 09616-00011
      2. Torque: 12 N.m (125 kgf. cm, 9 ft. lbf) 
      3. Fig 7: Installing Self-Locking Nut
        G01084734Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn "C" of SST to measure the dimension "A," then set SST as shown in Fig 8.
      1. SST 09613-12020
        Fig 8: Locating A, B & C
        G01084735Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Dimension A: 16.5 - 17.0 mm (0.65 - 0.67 in.) 
    3. Stake the self-locking nut by turning "B" of the SST until it touches the spacer of the SST.
  10. Install rack housing cap  .
    1. Apply sealant to 2 or 3 threads of the rack housing cap.
      1. Sealant: Part No. 08833-00080, THREE BOND 1344, LOCTITE 242 or equivalent 
    2. Install the rack housing cap.
      1. Torque: 69 N.m (700 kgf. cm, 51 ft. lbf) 
  11. Install rack guide, conical spring, rack guide spring and rack guide spring cap  .
    1. Install the rack guide, conical spring and rack guide spring.
      Fig 9: Identifying Conical Spring
      G01084736Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: Make sure to install the conical spring facing in the correct direction.
    2. Apply sealant to 2 or 3 threads of the rack guide spring cap.
      1. Sealant: Part No. 08833-00080, THREE BOND 1344, LOCTITE 242 or equivalent 
    3. Temporarily install the rack guide spring cap.
  12. Adjust total preload  .
    1. To prevent the steering rack teeth from damaging the oil seal lip, temporarily install the RH and LH rack ends.
    2. Using a hexagon wrench (21 mm), torque the rack guide spring cap.
      1. Torque: 25 N.m (250 kgf. cm, 18 ft. lbf) 
    3. Using a hexagon wrench (21 mm), return the rack guide spring cap 12°.
      Fig 10: Returning Rack Guide Spring
      G01084737Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Using SST, turn the control valve shaft right and left 1 or 2 times.
      1. SST 09616-00011
        Fig 11: Turning Control Valve Shaft Right & Left
        G01084738Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Using a hexagon wrench (21 mm), loosen the rack guide spring cap until the rack guide spring is not functioning.
    6. Using SST, a torque wrench and a hexagon wrench (21 mm), tighten the rack guide spring cap until the preload is within the specification.
      1. SST 09616-00011
        Fig 12: Tightening Rack Guide Spring Cap
        G01084739Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Preload (turning): 1.1 -1.6 N.m (11 - 16 kgf. cm, 9.7 - 14.2 in. lbf) 
  13. Install rack guide spring cap lock nut  .
    1. Apply sealant to 2 or 3 threads of the rack guide spring cap lock nut.
      1. Sealant: Part No. 08833-00080, THREE BOND 1344, LOCTITE 242 or equivalent 
    2. Temporarily install the rack guide spring cap lock nut.
    3. Using a hexagon wrench (21 mm), hold the rack guide spring cap and using SST, torque the rack guide spring cap lock nut.
      1. SST 09922-10011
      2. Torque: 32 N.m (330 kgf. cm, 24 ft. lbf) 
      NOTE: Use SST 09922-10010 in the direction shown in Fig 13.
      Fig 13: Displaying Hexagon Wrench & Fulcrum Length
      G01084740Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Use a torque wrench with a fulcrum length of 345 mm (13.58 in.).

    4. Recheck the total preload.
      1. Preload (turning): 1.1 - 1.6 N.m (11 - 16 kgf. cm, 9.7 - 14.2 in. lbf) 
    5. Remove the RH and LH rack ends.
  14. Install RH and LH claw washers and rack ends  .
    1. Install a new claw washer, and temporarily install the rack end.
      Fig 14: Identifying Rack End
      G01084741Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: Align the claws of the claw washer with the steering rack grooves.
    2. Using a spanner (22 mm), hold the steering rack steadily and using SST, torque the rack end.
      1. SST 09922-10010
        Fig 15: Using Spanner & SST To Torque Rack End
        G01084742Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Torque: 60 N.m (615 kgf. cm, 44 ft. lbf) 
      NOTE: Use SST 09922-10010 in the direction shown in Fig 15.
      NOTE: Use a torque wrench with a fulcrum length of 345 mm (13.58 in.).
    3. Using a brass bar and a hammer, stake the washer.
      Fig 16: Using Brass Bar To Stake Washer
      G01084743Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: Avoid any impact on the steering rack.
    4. Employ the same manner described above to the other side.
  15. Install No. 1 rack housing bracket  .
    1. Install the grommet to the No. 1 rack housing bracket.
    2. Align the matchmarks on the bracket and housing.
    3. Install and torque the bolt.
      1. Torque: 61 N.m (620 kgf. cm, 45 ft. lbf) 
      Fig 17: Aligning Bracket & Housing Matchmarks
      G01084744Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. Install RH and LH rack boots, clamps and clips  .
    1. Ensure that the steering rack hole is not clogged with grease.
      NOTE: If the hole is clogged, the pressure inside the boot will change after it is assembled and the steering wheel is turned.
    2. Install the boot, clip and a new clamp.
      NOTE: Be careful not to damage or twist the boot.
      Fig 18: Installing Boot, Clip & new Clamp
      G01084745Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Tighten the clamp as shown in Fig 19.
      Fig 19: Tightening Clamps
      G01084746Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Employ the same manner described above to the other side.
  17. Install RH and LH tie rod ends and lock nuts  .
    1. Screw the lock nut and tie rod end onto the rack end until the matchmarks are aligned.
      Fig 20: Locating & Aligning Matchmarks
      G01084747Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Employ the same manner described above to the other side.
    3. After adjusting toe-in, torque the nut (See BLEEDING ).
      1. Torque: 74 N.m (750 kgf. cm, 54 ft. lbf) 
  18. Install turn pressure tubes  .
    Fig 21: Installing Turn Pressure Tubes
    G01084748Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Using SST, install the 2 turn pressure tubes.

    1. SST 09023-38200
    2. Torque: 27 N.m (270 kgf. cm, 20 ft. lbf) 

    NOTE: Use a torque wrench with a fulcrum length of 250 mm (9.84 in.).