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Home >> Subaru >> 2014 >> Impreza WRX STI Limited >> Repair and Diagnosis >> Steering >> Power Steering System >> Steering Gearbox >> Disassembly >> Control Valve

Control Valve

  1. Disconnect the pipes A and B from gearbox.
  2. Secure the gearbox removed from vehicle in a vise using ST.
    CAUTION: Secure the gearbox assembly in a vise using ST as shown. Do not affix the gearbox to the vice without this ST.

    ST1 926200000 STAND

    ST2 34199AG000 BOSS D

    Fig 1: Securing Gearbox Assembly In Vise Using ST
    G08542585Courtesy of SUBARU OF AMERICA, INC.
  3. Using the ST, loosen the lock nut.

    ST 926230000 SPANNER

    Fig 2: Loosening Steering Gearbox Lock Nut Using Spanner
    G08542586Courtesy of SUBARU OF AMERICA, INC.
  4. Loosen the adjusting screw, and remove the spring and sleeve.
  5. Remove the two bolts securing valve assembly.
    Fig 3: Removing Valve Assembly Securing Bolts
    G05032917Courtesy of SUBARU OF AMERICA, INC.
  6. Carefully draw out the input shaft and remove the valve assembly.
    Fig 4: Removing/Installing Valve Assembly
    G05032927Courtesy of SUBARU OF AMERICA, INC.
  7. Put a vinyl tape around the spline portion, and slide the dust cover to remove.
    Fig 5: Removing Dust Cover
    G08542589Courtesy of SUBARU OF AMERICA, INC.
  8. Using a press, remove the pinion & valve assembly from valve housing.
    Fig 6: Removing Pinion And Valve Assembly From Valve Housing Using Press
    G08542590Courtesy of SUBARU OF AMERICA, INC.
  9. Using the ST and a press, remove the bushing and oil seal from the valve housing.
    CAUTION:
    • Do not apply a force to the end surface of valve housing.
    • Do not reuse the oil seal after removal.

    ST 34199AG090 INSTALLER & REMOVER

    Fig 7: Removing Bushing And Oil Seal From Valve Housing Using ST And Press
    G08542591Courtesy of SUBARU OF AMERICA, INC.
  10. Using a snap ring pliers, remove the snap ring, valve, oil seal and back-up washer.
    CAUTION: Be careful not to scratch the pinion and valve (1) Dust cover assembly.
    Fig 8: Identifying Snap Ring, Valve, Oil Seal And Back-Up Ring
    G08542592Courtesy of SUBARU OF AMERICA, INC.