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).
Warning:
Valve springs can be tightly compressed. Use care when
removing the retainers and plugs. Personal injury could result.
- 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).
Note:
Ensure that the valve train components are kept together
and identified in order for proper installation in their original position.
- Repeat the procedure with the remaining valves.
- In case of re-using the cylinder head, refer to 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 ...
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:
Bluetooth (Overview)
For vehicles equipped with Bluetooth capability, the system can interact with
many cell phones, allowing:
Placement and receipt of calls in a hands-free mode.
Sharing of the cell phone’s address book or contact list with the vehicle.
To minimize driver distraction, before driving, and w ...
Special Tools
Illustration
Tool Number/ Description
EL 42059
J 42059
Cigar Lighter Socket Remover
...
Exhaust Heat Shield Replacement
Exhaust Heat Shield Replacement
Callout
Component Name
Preliminary Procedure
Disconnect the exhaust system hangers and allow the exhaust system to
rest on the rear axle.
1
Exhaust Heat Shield Fa ...
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