Camshaft Sprocket - Subaru IMPREZA 2004 Service Manual

16.Camshaft Sprocket

A: REMOVAL
1. REMOVAL
1) Remove the V-belt. <Ref. to ME(H4SO)-43, RE-
MOVAL, V-belt.>
2) Remove the crankshaft
ME(H4SO)-45, REMOVAL, Crankshaft Pulley.>
3) Remove the timing belt cover. <Ref. to
ME(H4SO)-47, REMOVAL, Timing Belt Cover.>
4) Remove the timing belt assembly. <Ref. to
ME(H4SO)-48, REMOVAL, Timing Belt Assem-
bly.>
5) Remove the camshaft position sensor. <Ref. to
FU(H4SO)-29, REMOVAL, Camshaft Position
Sensor.>
6) Remove the camshaft sprocket No. 2. To lock
the camshaft, use ST.
ST 18231AA010 CAMSHAFT SPROCKET
WRENCH
NOTE:
Also the CAMSHAFT SPROCKET WRENCH
(499207100) can be used.
7) Remove the camshaft sprocket No. 1. To lock
the camshaft, use ST.
ST 499207400 CAMSHAFT SPROCKET
WRENCH
ST
B: INSTALLATION
1) Install the camshaft sprocket No. 1. To lock the
camshaft, use ST.
ST 499207400 CAMSHAFT SPROCKET
WRENCH
Camshaft Sprocket
pulley. <Ref. to
ST
ME-00250
ME-00251
ME(H4SO)-53
Tightening torque:
78 N·m (8.0 kgf-m, 57.9 ft-lb)
NOTE:
Do not confuse the right and left side camshaft
sprockets during installation. The camshaft sprock-
et No. 2 is identified by a projection used to monitor
camshaft position sensor.
ST
2) Install the camshaft sprocket No. 2. To lock cam-
shaft, use ST.
ST 18231AA010 CAMSHAFT SPROCKET
WRENCH
NOTE:
Also the CAMSHAFT SPROCKET WRENCH
(499207100) can be used.
Tightening torque:
78 N·m (8.0 kgf-m, 57.9 ft-lb)
3) Install the camshaft position sensor. <Ref. to
FU(H4SO)-29, INSTALLATION, Camshaft Position
Sensor.>
4) Install the timing belt assembly. <Ref. to
ME(H4SO)-49, INSTALLATION, Timing Belt As-
sembly.>
5) Install the timing belt cover. <Ref. to ME(H4SO)-
47, INSTALLATION, Timing Belt Cover.>
6) Install the crankshaft
ME(H4SO)-45, INSTALLATION, Crankshaft Pul-
ley.>
7) Install the V-belt. <Ref. to ME(H4SO)-43, IN-
STALLATION, V-belt.>
C: INSPECTION
1) Check the sprocket teeth for abnormal wear and
scratches.
MECHANICAL
ME-00251
ST
ME-00250
pulley. <Ref. to