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:

Engine Coolant Fan Resistor Mount Repair
Engine Coolant Fan Resistor Mount Repair Callout Component Name Preliminary Procedure Remove the fasteners securing the radiator surge tank to the engine shroud and position the surge tank out of the way. Refer to Radiator ...

Drive Belt Removal
Special Tools EN-955 Locking Pins EN-48488 Holding Wrench For equivalent regional tools, refer to Special Tools. Install EN-48488 wrench (1) to the drive belt tensioner. Note: The drive belt tensioner must always be in a pre-tensioned state. Move the dri ...

Timing Belt Replacement
Special Tools EN-6333 Timing Belt Tensioner Locking Pin EN-6340 Camshaft Locking Tool For equivalent regional tools, refer to Special Tools. Removal Procedure Note: If the timing belt is being replaced due to the maintenance schedule interval, then the timing belt t ...