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

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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:

Engine Compartment Overview
1.4L L4 Engine 1. Engine Air Cleaner/Filter. 2. Engine Oil Dipstick. See Engine Oil. 3. Engine Cooling Fan (Out of View). See Cooling System. 4. Engine Oil Fill Cap. See Engine Oil. 5. Engine Coolant Surge Tank and Pressure Cap. See Cooling System. 6. Brake/Clutch Fluid Reservoir. See Brakes ...

Remote Keyless Entry (RKE) System Operation
The RKE transmitter may work up to 60?€‰m (195?€‰ft) away from the vehicle. Other conditions can affect the performance of the transmitter. See Remote Keyless Entry (RKE) System. RKE without Remote Start Shown The following buttons are on the transmitter: Q ...

Clutch and Differential Housing Cleaning and Inspection
Warning: Wear safety glasses to avoid injury when using compressed air or any cleaning solvent. Bodily injury may occur if fumes are inhaled or if skin is exposed to chemicals. Clean the clutch housing (1) with a suitable solvent. Air dry all the parts. Inspect ...

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