One-Way Clutch

WARNING: This page is about a different car, the 2006 Subaru Outback and 2006 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.

Check that the snap ring is not damaged and the seal ring is not deformed.
Measure the total end play and adjust it to be within specifications. < Ref. to ADJUSTMENT , Oil Pump Housing. >