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Home >> Subaru >> 2003 >> Impreza RS, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Overhaul >> Control Valve Body >> Disassembly

Control Valve Body: Disassembly

  1. Remove oil strainer from lower control valve body.
    NOTE: Arrange the removed bolts in good order to assemble in the same place as disassembly, because the bolts length are different.
    Fig 1: Removing Oil Strainer From Lower Control Valve Body
    G01998850Courtesy of SUBARU OF AMERICA, INC.
  2. Remove the duty solenoids and solenoids from the lower valve body.
    NOTE: Arrange the removed bolts in good order to assemble in the same place as disassembly, because the bolts length are different.
    Fig 2: Removing Duty Solenoids & Solenoids From Lower Valve Body
    G01998851Courtesy of SUBARU OF AMERICA, INC.
  3. Remove the upper and lower valve body tightening bolts.
    NOTE: Arrange the removed bolts in good order to assemble in the same place as disassembly, because the bolts length are different.
    Fig 3: Removing Upper & Lower Valve Body Tightening Bolts
    G01998852Courtesy of SUBARU OF AMERICA, INC.
  4. Remove the lower valve body.
  5. Remove the oil filter and plate.
    Fig 4: Removing Oil Filter & Plate
    G01998853Courtesy of SUBARU OF AMERICA, INC.
  6. Remove six steel balls from middle valve body.
    Fig 5: Removing Six Steel Balls From Middle Valve Body
    G01998854Courtesy of SUBARU OF AMERICA, INC.
  7. Remove the middle valve body.
  8. Remove upper separator plate from middle valve body.
    Fig 6: Removing Upper Separator Plate From Middle Valve Body
    G01998855Courtesy of SUBARU OF AMERICA, INC.
  9. Remove valve springs and four steel balls from upper valve body.
  10. Place a shop cloth etc. to the piston removal hole.
  11. Using an air compressor, apply air slowly to each piston hole and remove the pistons.
    Fig 7: Applying Air Slowly To Each Piston Hole & Removing Pistons
    G01998856Courtesy of SUBARU OF AMERICA, INC.
  12. Remove the seal ring from piston.
    Fig 8: Removing Seal Ring
    G01998857Courtesy of SUBARU OF AMERICA, INC.