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Power Steering Gear: Replacement

NOTE: When using a vise, do not overtighten it.
  1. IF NECESSARY, REPLACE OIL SEAL AND BEARING 
    1. Using SST, press out the bearing and oil seal from the control valve housing.

      SST 09950-60010 (09951-00240), 09950-70010 (09951-07100)

      Fig 1: Pressing Out Bearing And Oil Seal From Control Valve Housing
      G01315697Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Coat a new oil seal lip with power steering fluid.
    3. Using SST, press in the oil seal.

      SST 09950-60010 (09951-00180, 09951-00320, 09952-06010), 09950-70010 (09951-07150)

      NOTE: Make sure that the oil seal is installed facing in the correct direction.
      Fig 2: Pressing Oil Seal Into Control Valve Housing
      G01315698Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Coat a new bearing with molybdenum disulfide lithium base grease.
    5. Using SST, press in the bearing.

      SST 09950-60010 (09951-00340), 09950-70010 (09951-07150)

    Fig 3: Pressing Bearing Into Control Valve Housing
    G01315699Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. IF NECESSARY, REPLACE OIL SEAL 
    1. Using SST, press out the oil seal from the bearing guide nut.

      SST 09950-60010 (09951-00310), 09950-70010 (09951-07100)

      Fig 4: Pressing Out Oil Seal From Bearing Guide Nut
      G01315700Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Coat a new oil seal lip with power steering fluid.
    3. Using SST, press in the oil seal.

      SST 09950-60010 (09951-00250, 09951-00360, 09952-06010), 09950-70010 (09951-07100)

      NOTE: Make sure that the oil seal is installed facing in the correct direction.
    Fig 5: Pressing Oil Seal Into Bearing Guide Nut
    G01315701Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. IF NECESSARY, REPLACE UNION SEAT 
    1. Using a screw extractor, remove the union seat from the control valve housing.
      Fig 6: Removing Union Seat From Control Valve Housing
      G01315702Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using a plastic hammer and extension bar, lightly tap in a new union seat.
    Fig 7: Tapping In Union Seat
    G01315703Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSPECT BUSHING 
    1. Check the inside of the bushing of the cylinder end stopper for cracks. If faulty, replace the bushing.
    2. Apply molybdenum disulfide lithium base grease to the inside of the bushing.
    Fig 8: Inspecting Bushing
    G01315704Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. IF NECESSARY, REPLACE BUSHING 
    1. Using a screwdriver, remove the bushing from the cylinder end stopper.
      NOTE: Be careful not to damage the cylinder end stopper.
    2. Coat the inside of a new bushing with molybdenum disulfide lithium base grease.
    3. Install the bushing.
    Fig 9: Removing Bushing From Cylinder End Stopper
    G01315705Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. IF NECESSARY, REPLACE TEFLON RING AND O-RING 
    1. Using a screwdriver, remove the teflon ring and O-ring from the steering rack.
      NOTE: Be careful not to damage the groove for the teflon ring.
    2. Coat a new O-ring with power steering fluid and install it to the steering rack.
      Fig 10: Removing Teflon Ring And O-Ring From Steering Rack
      G01315706Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Expand a new teflon ring with your fingers.
      NOTE: Be careful not to overexpand the teflon ring.
      Fig 11: Expanding Teflon Ring With Fingers
      G01315707Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Coat the teflon ring with power steering fluid.
    5. Install the teflon ring to the steering rack and settle it down with your fingers.
      Fig 12: Installing Teflon Ring To Steering Rack And Settling It Down With Fingers
      G01315708Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Carefully slide the tapered end of SST over the teflon ring until it fits to the steering rack.

      SST 09630-24014 (09620-24051)

    NOTE: Be careful not to damage the teflon ring.
    Fig 13: Sliding Tapered End Of SST Over Teflon Ring
    G01315709Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. IF NECESSARY, REPLACE 4 TEFLON RINGS 
    1. Using a screwdriver, remove the 4 teflon rings from the control valve assembly.
      NOTE: Be careful not to damage the grooves for the teflon ring.
    2. Expand 4 new teflon rings with your fingers.
      NOTE: Be careful not to overexpand the teflon ring.
    3. Coat the teflon rings with power steering fluid.
    4. Install the teflon rings to the control valve assembly, and settle them down with your fingers.
      Fig 14: Removing Teflon Rings From Control Valve Assembly
      G01315710Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Carefully slide the tapered end of SST over the teflon rings until they fit to the control valve assembly.

      SST 09631-20081

    NOTE: Be careful not to damage the teflon rings.
    Fig 15: Sliding Tapered End Of SST Over Teflon Rings
    G01315711Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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