Chevrolet Sonic Repair Manual: Cylinder Head Assemble

Chevrolet Sonic Repair Manual / Powertrain / Engine / Engine Block / Cylinder Head / Cylinder Head Assemble

Special Tools

EN-958 Valve Stem Seal Installer
EN-8062 Valve Spring Compressor
EN-8062-5 Adapter
EN-50717-2 Compressor Assembly of EN-50717 Kit

For equivalent regional tools, refer to Special Tools.

Lubricate the valve stem and the valve guide with clean engine oil.

Lubricate the valve stem and the valve guide with clean engine oil.

Note:

Ensure all valve train components will be installed in their original position.

Install the valve (5).
Install the NEW valve stem oil seal (4), using the EN-958 installer (2).
Loosely install the valve spring (3) and the valve spring retainer (1).

Install the EN-50717?E assembly (1) to the EN-8062 compressor (4).
Install the EN-8062?E adapter (3) to the EN-8062 compressor .
Install the compressor assembly to the cylinder head, so that the adapter (5) of the EN-50717?E assembly (1) contacts the valve spring retainer properly and the EN-8062?E adapter (3) contacts the valve disc (2). Prefix the EN-8062 compressor (4).

Caution:

The valve stem keys must correctly seat in the valve spring cap. Engine damage may occur by not installing properly.

Apply pressure to the EN-50717?E assembly to push down the vale spring retainer (1) and compress the valve spring (3) until the valve keys (2) can be inserted. Carefully insert the valve keys then, so that they are proper installed to the valve stem grooves.
Carefully release the tension from the EN-50717?E assembly .
Inspect the valve keys and valve spring retainers for proper seat.
Remove the compressor assembly from the cylinder head.
Repeat the procedure with the remaining valves.

Cylinder Head

...

Cylinder Head Cleaning and Inspection

Valve Cleaning and Inspection Warning: Bodily injury may occur if the cleaning solvent is inhaled or exposed to the skin. Note: Do not scratch the valve ste ...

Other materials:

Operation
Radio Controls without Touchscreen The infotainment system is operated by using the pushbuttons, multifunction knobs, menus shown on the display, and steering wheel controls, if equipped. Turning the System On or Off O /VOL (Power/Volume) Press to turn t ...

Fuel Tank Filler Door Replacement
Fuel Tank Filler Door Replacement Callout Component Name 1 Fuel Tank Filler Door Procedure Position the fuel tank filler door to the full open position. Using light outward sliding pressure on the filler door, ...

Drive Range, First Gear Engine Braking (Gen 1)
When the gear selector lever is moved to the Drive (D) range from the Neutral (N) position, the transmission will provide engine braking. In this operating range, the normally-low 1234 pressure control solenoid 5 is commanded ON and, in the engine braking mode, the following changes occur with ...

0.0069