Chevrolet Sonic Repair Manual: 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.
- 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).
- 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.
Note:
Ensure all valve train components will be installed in their original position.
Caution:
The valve stem keys must correctly seat in the valve spring cap. Engine damage may occur by not installing properly.
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:
Instrument Panel, Leather, Vinyl, Other Plastic Surfaces, Low Gloss Paint Surfaces
and Natural Open Pore Wood Surfaces
Use a soft microfiber cloth dampened with water to remove dust and loose dirt.
For a more thorough cleaning, use a soft microfiber cloth dampened with a mild soap
solution.
Caution
Soaking or saturating leather, especially perforated leather, as well as other
interior surfaces, may cause per ...
Vehicle Personalization
Personalization Menu (Radio without Touchscreen)
Use the audio system controls to access the personalization menus for customizing
vehicle features.
The following are all possible personalization features. Depending on the
vehicle, some may not be available.
CONFIG (Configur ...
Brake Pad Inspection
Warning: Refer to Brake Dust Warning.
Inspect the disc brake pads at regular intervals, or whenever the tire and
wheel assemblies are removed from the vehicle.
If replacement is necessary, always replace disc brake pads in axle sets.
Inspect both edges of the disc brake ...
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