Subaru Legacy 2004 Service Manual page 1182

12) Install the rear oil seal using ST1 and ST2.
ST1 499597100 CRANKSHAFT OIL SEAL
GUIDE
ST2 499587200 CRANKSHAFT OIL SEAL IN-
STALLER
ST2
(A) Rear oil seal
(B) Flywheel attaching bolt
13) Position the top ring gap at (A) or (B) in the fig-
ure.
14) Position the second ring gap at 180# on the re-
verse side of the top ring gap.
(A)
15) Position the upper rail gap at (C) in the figure.
Cylinder Block
(B)
(A)
ST1
ME-00148
(B)
ME-00718
25
(C)
ME-02087
ME(H4DOTC)-71
16) Align the upper rail spin stopper (E) to the side
hole (D) on the piston.
(D)
(F)
17) Position the expander gap at 180# on the re-
verse side of (C) that shown (F) in the figure.
(F)
18) Position the lower rail gap at 120# on counter-
clockwise of (C) that shown (G) in the figure.
(G)
CAUTION:
• Ensure ring gaps do not face the same direc-
tion.
• Ensure ring gaps are not within the piston
skirt area.
19) Install the snap ring.
Install snap rings in the piston holes located oppo-
site to the service holes in cylinder block, when po-
sitioning all pistons in the corresponding cylinders.
MECHANICAL
(E)
(G)
ME-00843
ME-02088
(C)
120
ME-02089