VANE PUMP (for 5L-E) INSPECTION


  1. INSPECT VANE PUMP SHAFT AND BUSHING IN FRONT HOUSING


    1. A01E1TVE03

      Using a micrometer, measure the diameter (a) of the vane pump shaft.

    2. Using a caliper gauge, measure the inside diameter (b) of the front housing.

      Note

      Do not damage the bushing in the front housing.

    3. Subtract (a) from (b) to calculate the oil clearance.

      Maximum oil clearance
      0.07 mm (0.0028 in.) or less

      If it is greater than the maximum, replace the vane pump assembly.

  2. INSPECT VANE PUMP ROTOR AND VANE PUMP PLATES CLEARANCE


    1. A01DXNSE01

      Using a feeler gauge, measure the clearance between the side face of the vane pump rotor groove and the vane pump plates.

      Maximum clearance
      0.03 mm (0.0012 in.)

      Note


      • If the clearance is more than the maximum, replace the vane pump plates, vane pump rotor and vane pump cam ring.

      • Refer to the following table to select an appropriate combination of vane pump rotor, vane pump cam ring and vane pump plates.

        Combination of vane pump rotor, vane pump cam ring and vane pump plates
        for 2WD
        Vane Pump Rotor Part No. Vane Pump Cam Ring Part No. Vane Pump Plate Part No.
        44313-02160 44325-0K060 44345-06060
        44313-02170 44325-0K070 44345-06070
        44313-02180 44325-0K080 44345-06080
        44313-02190 44325-0K090 44345-06090
        44313-02200 44325-0K100 44345-06100
        for 4WD
        Vane Pump Rotor Part No. Vane Pump Cam Ring Part No. Vane Pump Plate Part No.
        44313-02160 44325-06110 44345-06060
        44313-02170 44325-06120 44345-06070
        44313-02180 44325-06130 44345-06080
        44313-02190 44325-06140 44345-06090
        44313-02200 44325-06150 44345-06100

  3. INSPECT FLOW CONTROL VALVE


    1. A01E217E01

      Check the flow control valve for leakage. Close one of the holes and apply compressed air, 392 to 490 kPa (4 to 5 kgf/cm2, 57 to 71 psi), into the opposite side hole, and confirm that air does not come out from the end holes.

      Note

      Make sure to use clean and dry air.

    2. A01E2M5E01

      If there is leakage, replace the flow control valve.

      Note


      • Check the mark on the front housing and replace the flow control valve with one having the same mark as that of the front housing.

      • Refer to the following table to select an appropriate combination of front housing and flow control valve.

        Combination of front housing and flow control valve
        Front Housing Mark Flow Control Valve Mark Flow Control Valve Part No.
        A A 44330-04010
        B B 44330-04020
        C C 44330-04030
        D D 44330-04040
        E E 44330-04050
        F F 44330-04060

    3. Coat the flow control valve with power steering fluid.

      Note

      Make sure to use new power steering fluid.

    4. Insert the flow control valve into the flow control valve installation hole of the front housing, and check that the flow control valve enters smoothly under its own weight.

    5. If the flow control valve does not enter the front housing smoothly, replace the flow control valve.

  4. INSPECT FLOW CONTROL VALVE COMPRESSION SPRING


    1. A01E1IVE01

      Using a vernier caliper, measure the free length of the flow control valve compression spring.

      Minimum free length
      32.3 mm (1.272 in.)

      If the length is less than the minimum, replace the flow control valve compression spring.

  5. INSPECT PRESSURE PORT UNION


    1. If the union seat in the pressure port union is severely damaged, replace the pressure port union.