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Section 368 (Power Steering Vane Pump): Disassembly

WARNING: This page is about a different car, the 2004 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
  1. FIX VANE PUMP ASSEMBLY 

    Using SST, hold the vane assembly in a vise.

    1. SST 09630-00014 (09631-00132)
    Fig 1: Holding Vane Assembly In Vise
    G00915253Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. MEASURE PS VANE PUMP ROTATING TORQUE 
    1. Check that the pump rotates smoothly without abnormal noise.
      Fig 2: Measuring PS Vane Pump Rotating Torque
      G00915254Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Temporarily install the bolt to the shaft.
    3. Using a torque wrench, check the pump rotating torque.
      1. Rotating torque: 0.3 N.m (2.8 kgf.cm, 2.4 in.lbf) or less 
  3. REMOVE SUCTION PORT UNION 
    1. Remove the bolt.
    2. Remove the O-ring from the union.
  4. REMOVE PRESSURE PORT UNION, FLOW CONTROL VALVE AND SPRING 

    Remove the O-ring from the union.

  5. REMOVE REAR HOUSING 
    1. Loosen the 4 bolts.
    2. Remove the vane pump assembly from the SST.
    3. Remove the 4 bolts and rear housing.
    4. Remove the gasket from the housing.
      Fig 3: Removing Snap Ring From Vane Pump Shaft
      G00915255Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. REMOVE CAM RING, 10 VANE PLATES AND VANE PUMP ROTOR 

    Using a screwdriver, remove the snap ring from the vane pump shaft.

    NOTE: Be careful not to drop the plate. 
  7. REMOVE SIDE PLATE 
  8. REMOVE VANE PUMP SHAFT WITH PUMP PULLEY 
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