Subaru IMPREZA GD 2007 Series Manual page 2477

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MECHANICAL
12) Apply a coat of engine oil to the oil seal periph-
ery, then install the rear oil seal using ST1 and ST2.
NOTE:
Use a new oil seal.
ST1 499597100 CRANKSHAFT OIL SEAL
GUIDE
ST2 499587200 CRANKSHAFT OIL SEAL
INSTALLER
ST2
(A) Rear oil seal
(B) Flywheel attaching bolt
13) Position the top ring gap at (A) or (B) in the fig-
ure.
NOTE:
Assemble so that the piston ring mark "R" faces the
top side of the piston.
14) Position the second ring gap at 180° on the re-
verse side the top ring gap.
NOTE:
Assemble so that the piston ring mark "R" faces the
top side of the piston.
(A)
15) Position the upper rail gap at (C) in the figure.
(C)
25
Cylinder Block
(B)
(A)
ST1
ME-00148
180
(B)
ME-00781
ME-02470
ME(H4DOTC)-76
16) Align the upper rail spin stopper (E) to the side
hole (D) on the piston.
(D)
17) Position the expander gap at (F) in the figure.
18) Position the lower rail gap at (G) in the figure.
NOTE:
• Make sure ring gaps do not face the same direc-
tion.
• Make sure ring gaps are not within the piston
skirt area.
(E)
ME-02471
25
(F)
ME-00784
(G)
35
ME-00785