Subaru 2009 IMPREZA Service Manual page 297

19) Install the snap ring.
Before positioning the piston on the cylinder block,
attach the snap ring in the service hole of the cylin-
der block, and the piston hole on the opposite side.
NOTE:
Use new snap rings.
#3
#1
(A)
(A) Front side
(1)
(1) Piston
(2) Piston pin
(3) Snap ring
20) Install the piston.
(1) Set the parts so that the #1 and #2 cylinders
are on the upper side.
(2) Using the ST1, turn the crankshaft so that
#1 and #2 connecting rods are set at bottom
dead center.
ST1 499987500 CRANKSHAFT SOCKET
Cylinder Block
#4
#2
ME-00306
(5)
(4)
(3)
(2)
(4) Gasket
(5) Service hole plug
ME(H4SO)-79
T
(5)
(4)
(3)
(2)
Tightening torque:N·m (kgf-m, ft-lb)
T: 70 (7.1, 51.6)
MECHANICAL
(1)
ME-02442