WARNING: This page is about a different car, the 2001 Subaru Outback, 2001 Subaru Legacy, 2001 Subaru Impreza, and 2001 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
Remove four seal rings.
CAUTION:
Be careful not to damage O-ring.
Remove the oil pump cover.
NOTE:
Lightly tap the end of the stator shaft to remove the cover.