Impreza WRX STI F4-2.5L DOHC Turbo (2007)
2) Attach the actuator cover of the intake cam sprocket.
NOTE: Use new O-rings.
Tightening torque: 3.4 Nm (0.3 kgf-m, 2.5 ft-lb)
3) Install the timing belt.
4) Install the timing belt cover.
5) Install the crank pulley.
6) Install the V-belts.
INSPECTION
1) Check the cam sprocket teeth for uneven wear and scratches.
2) Make sure there is no free play between cam sprocket and key.