Impreza GT F4-2.5L Turbo (2009)
6) Using the ST, loosen the lock nut.
ST 926230000 SPANNER
7) Tighten the adjusting screw until it can no longer be tightened.
8) Remove the tie-rod.
9) Loosen the adjusting screw, and remove the spring and sleeve.
10) Remove the two bolts securing valve assembly.
11) Carefully draw out the input shaft and remove the valve assembly.