Steering Gearbox: Disassembly

Disconnect the four pipes from gearbox.
NOTE: Remove the pipes C and D, which are fixed to clamp plate, as a unit.
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 secure the gearbox to the vise without this ST.
ST1 926200000 STAND
ST2 34199AG000 BOSS D

Fig 1: Securing Gearbox On Vise
Courtesy of SUBARU OF AMERICA, INC.
Remove the tie-rod end and lock nut from gearbox.
Remove the small clip from the boot using pliers, and then move the boot to tie-rod end side.

Fig 2: Removing Small Clip From Boot Using Pliers
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Using a flat tip screwdriver, remove the band from boot.
NOTE: Replace the boot if there is damage, cracks or deterioration.

Fig 3: Removing Boot Band Using Flat Tip Screwdriver
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Using the ST, loosen the lock nut.
ST 926230000 SPANNER

Fig 4: Loosening Lock Nut Using Spanner
Courtesy of SUBARU OF AMERICA, INC.
Tighten the adjusting screw until it can no longer be tightened.

Fig 5: Tightening Adjusting Screw Using Spanner
Courtesy of SUBARU OF AMERICA, INC.
Remove the tie-rod.
Loosen the adjusting screw, and remove the spring and sleeve.
Clean any dirt adhered to the input shaft. Remove the dust cover, paying attention not to scratch the housing or input shaft and not to allow foreign matter to enter gearbox interior.
CAUTION: Roll a vinyl tape around the input shaft spline to avoid scratching the dust cover.

Fig 6: Identifying Dust Cover
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Align the ST pin with plug hole to install. Rotate the ST counterclockwise to remove plug.
ST 34199AE090 PLUG WRENCH

Fig 7: Removing Plug Using Plug Wrench
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Remove the valve assembly paying attention not to scratch the seal ring or valve housing inner surfaces.

Fig 8: Removing Valve Assembly
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Remove the holder.
Attach the ST to the pinion housing side of the rack, and push out the rack together with the outer side oil seal.
ST 34199FE000 INSTALLER & REMOVER

NOTE: Block the pipe connection of steering body to prevent fluid from flowing out.

Fig 9: Removing Rack And Outer Side Oil Seal Using Installer & Remover
Courtesy of SUBARU OF AMERICA, INC.
Insert the ST from the valve side and press the back-up ring and oil seal out.
ST 34199FE010 REMOVER

Fig 10: Pressing Back-Up Ring And Oil Seal
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Using ST1 and ST2, repair the crimped portion of cylinder.
ST1 34099FA080 PUNCH

ST2 34199FE020 BASE

Fig 11: Repairing Crimped Portion Of Cylinder Using Tools
Courtesy of SUBARU OF AMERICA, INC.
If the cylinder edge is deformed in a convex shape, repair using an oil stone.

Fig 12: Identifying Cylinder Edge Convex Shape
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Remove the oil seal using ST and push out from the plug.
ST 34199AE100 OIL SEAL PLUG REMOVER

NOTE: Do not apply force on the plug edge surface.

Fig 13: Removing Oil Seal Using Oil Seal Plug Remover
Courtesy of SUBARU OF AMERICA, INC.
Set the ST at a size shown in the figure.
ST 34199AE120 GEARBOX OIL SEAL REMOVER

Fig 14: Identifying Gearbox Oil Seal Remover Setting Position
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Set the stopper to gearbox, then insert the tip of the ST to the gearbox.

Fig 15: Setting Stopper To Gearbox
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By fixing the 2-surface widths, press-in the rod while rotating it and catch the oil seal.

Fig 16: Pressing Rod In 2-Surface Width
Courtesy of SUBARU OF AMERICA, INC.
While fixing the 2-surface widths, pull out the oil seal by rotating nut.
CAUTION: Take care not to scratch the gearbox inner surface.

Fig 17: Pulling Out Oil Seal From 2-Surface Width
Courtesy of SUBARU OF AMERICA, INC.