Impreza 2.5 RS Coupe F4-2.5L SOHC (2000)
10. Fit a new oil seal using ST.
ST 498447120 OIL SEAL INSTALLER
11. Install companion flange.
12. Tighten self-locking nut within the specified torque range so that the turning resistance of companion flange becomes the same as that before
replacing oil seal.
ST 498427200 FLANGE WRENCH
CAUTION: Use a new self-locking nut.
Tightening torque: 188 ± 26 Nm (19.2 ± 2.7 kg-m, 139 ± 20 ft. lbs.)
13. Reassembling procedure hereafter is the reverse of the disassembling.