Oil Pump Chain: Removal

Remove the transmission assembly from the vehicle. Refer to REMOVAL .
Remove the torque converter assembly. Refer to REMOVAL .
Remove the oil pump chain cover.
NOTE: Oil pump chain cover may be hard to remove because the driven sprocket is installed to the shaft side of the oil pump. In this case, do not apply excessive force to remove it.

Fig 1: Locating Oil Pump Chain Cover Mounting Bolts
Courtesy of SUBARU OF AMERICA, INC.
Remove the seal ring.

Fig 2: Locating Seal Ring
Courtesy of SUBARU OF AMERICA, INC.
Remove the driven sprocket from oil pump chain cover to remove the oil pump chain.
NOTE:
- The driven sprocket is replaced as an assembly only, because it is a non-disassembly part.
- If the ball bearing is removed from the driven sprocket, replace with a new part.
  
  Fig 3: Removing Driven Sprocket From Oil Pump Chain Cover
  Courtesy of SUBARU OF AMERICA, INC.
Remove the snap ring.

Fig 4: Identifying Snap Ring
Courtesy of SUBARU OF AMERICA, INC.
Remove the drive sprocket.

Fig 5: Identifying Drive Sprocket
Courtesy of SUBARU OF AMERICA, INC.
Remove the oil seal from the oil pump chain cover.

Fig 6: Removing Oil Seal From Oil Pump Chain Cover
Courtesy of SUBARU OF AMERICA, INC.