Civic Si L4-2.0L (2004)
Variable Valve Timing Actuator: Service and Repair
VTC Actuator, Exhaust Camshaft Sprocket Replacement
Removal
1. Remove the cam chain.
2. Hold the camshaft with an open-end wrench, then loosen the variable valve timing control (VTC) actuator mounting bolt and exhaust camshaft
sprocket mounting bolt.
3. Remove the VTC actuator and exhaust camshaft sprocket.
Installation
1. Install the VTC actuator and exhaust camshaft sprocket.
2. Apply engine oil to the threads of the VTC actuator mounting bolt and exhaust camshaft mounting bolt then install them.
3. Hold the camshaft with an open-end wrench, then tighten the bolts.
Specified torque:
VTC actuator mounting bolt: 113 Nm (11.5 kgf-cm, 83 ft. lbs.)
Exhaust camshaft sprocket mounting bolt: 72 Nm (7.3 kgf-cm, 53 ft. lbs.)
4. Install the cam chain.
