Subaru Impreza 2003 Service Manual page 360

LUBRICATION
4. Oil Pump
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Lift-up the vehicle.
3) Remove the under cover.
4) Lower the vehicle.
5) Remove the radiator. <Ref. to CO(H4SO)-21,
REMOVAL, Radiator.>
6) Remove the crankshaft position sensor.
7) Remove the V-belts.
<Ref. to ME(H4SO)-44, REMOVAL, V-belt.>
8) Remove the belt tensioner.
OIL PUMP
9) Remove the crankshaft pulley by using ST.
ST 499977400
ST 499977100
FU-00009
10) Remove the water pump. <Ref. to CO(H4SO)-
16, REMOVAL, Water Pump.>
11) Remove the timing belt guide. (MT model)
LU-00046
12) Remove the crankshaft sprocket.
LU-00011
LU(H4SO)-10
CRANKSHAFT PULLEY
WRENCH (1.6 L and 2.0 L
models)
CRANKSHAFT PULLEY
WRENCH (2.5 L model)
LU-00012
LU-00013
LU-00014