Chevrolet Sonic Repair Manual: Camshaft

Valve Guide Reaming, and Valve and Seat Grinding

Valve Cleaning Procedure Use soft bristle wire brush to clean any carbon build-up from the valve head. DO NOT use a wire brush on any part of the valve stem. The valve stem is chr ...

Camshaft Actuator System Description

Camshaft Actuator System Overview (1) Camshaft Actuator Vane (2) Timing Chain Sprocket (3) Engine Oil Pressure-For retarding ...

Other materials:

Piston, Connecting Rod, and Bearing Installation
Special Tools EN-470-B Angular Torque Wrench For equivalent regional tools, refer to Special Tools. Adjust the piston ring joints as follows: Upper compression ring (1). Lower compression ring (4). Oil rings (2) or (3). Oil ring spacer (5). ...

Oil Level Indicator and Tube Removal
Remove the oil dipstick. Remove the oil level indicator tube bolt (1). Note: If the engine oil level is at the maximum level, oil may emerge while removing the oil dipstick guide tube. Remove the oil level indicator tube (2) and oil level indicator seal. ...

Exhaust Camshaft Installation
Note: Mind the markings on the camshaft bearing caps. Camshaft bearing caps should be installed in their original position. Lubricate camshaft and camshaft bearing caps with engine oil. Install the exhaust camshaft (3). Install the 5 camshaft bearing caps̴ ...