Chevrolet Sonic Repair Manual: Cylinder Head Disassemble
Special Tools
- EN-840 Pliers/Remover
- 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.
- 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) are free from tension. Carefully remove the valve keys.
- Slowly and carefully loosen the EN-50717?E assembly until the valve spring is entirely expanded.
- Remove the compressor assembly from the cylinder head.
- Remove the valve spring retainer (1) and the valve spring (3).
- Remove and DISCARD the valve stem oil seal (4), using the EN-840 pliers (2).
- Remove the valve (5).
- Repeat the procedure with the remaining valves.
- In case of re-using the cylinder head, refer to Cylinder Head Cleaning and Inspection.
Warning:
Valve springs can be tightly compressed. Use care when removing the retainers and plugs. Personal injury could result.
Note:
Ensure that the valve train components are kept together and identified in order for proper installation in their original position.
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 ...
Cylinder Head Installation
Special Tools
EN-45059 Torque Angle Sensor Kit
For equivalent regional tools, refer to Special Tools.
Clean the sealing surfaces.
Inspect for plane surface.
Cylinder block, cylinder h ...
Other materials:
Rear Wheelhouse Liner Replacement (Sedan - Left)
Rear Wheelhouse Liner Replacement
Callout
Component Name
Preliminary Procedure
Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and
Installation.
1
Rear Wheelhouse Panel Liner ...
Front End Upper Tie Bar Replacement
Removal Procedure
Warning: Refer to Approved Equipment for Collision Repair
Warning.
Warning: Refer to Glass and Sheet Metal Handling Warning.
Disable the SIR System. Refer to SIR Disabling and Enabling.
Disconnect the negative battery cable. Refer ...
Throttle Body Assembly Installation
Install a NEW throttle body seal.
Install the throttle body (1).
Caution: Refer to Fastener Caution.
Install the 4 throttle body bolts (2) and tighten to 8 Y (71 lb in).
...
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