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Power Steering Vane Pump: Disassembly

NOTE: When using a vise, do not overtighten it.
  1. MEASURE PS VANE PUMP ROTATING TORQUE 
    1. Check that the pump rotates smoothly without abnormal noise.
    2. Using a torque wrench, check the pump rotating torque.
      Fig 1: Measuring PS Vane Pump Rotating Torque
      G03322464Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Rotating torque: 0.28 N.m (2.8 kgf.cm, 2.4 in.lbf) or less 

  2. REMOVE VANE PUMP PULLEY 

    Using SST to stop the pulley rotating, remove the pulley set nut.

    Fig 2: Removing Vane Pump Pulley
    G03322465Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    SST 09960-10010 (09962-01000, 09963-01000)

  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. Remove the 4 bolts.
      NOTE: If the wave washer and side plate are stuck to the rear housing, lightly tap the rear housing with a plastic hammer, and remove the wave washer and side plate.
    2. Remove the 2 O-rings from the housing.
  6. REMOVE WAVE WASHER 
  7. REMOVE SIDE PLATE 
  8. REMOVE GASKET 
  9. REMOVE CAM RING, 10 VANE PLATES AND VANE PUMP ROTOR 

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

    CAUTION: Be careful not to drop the plate.
  10. REMOVE VANE PUMP SHAFT 
  11. REMOVE STRAIGHT PINS 

    Remove the 2 pins from the front housing.

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