Subaru 2002 IMPREZA Service Manual page 1114

MECHANICAL
23) Remove the oil pump from cylinder block.
Use a flat-bladed screwdriver as shown in the fig-
ure when removing the oil pump.
CAUTION:
Be careful not to scratch the mating surface of
cylinder block and oil pump.
(1) Service hole plug
(2) Gasket
24) Remove the service hole cover and service
hole plugs using hexagon wrench [14 mm (0.55
in)].
CYLINDER BLOCK
(3) Circlip
(4) Piston pin
25) Rotate the crankshaft to bring #1 and #2 pis-
tons to bottom dead center position, and then re-
move the piston circlip through service hole of #1
and #2 cylinders.
B2M2620
ME(TURBO)-72
(5) Service hole cover
(6) O-ring
S2M1819
EN0294
G2M0165