Chevrolet Sonic Repair Manual: Cylinder Head Installation

Chevrolet Sonic Repair Manual / Powertrain / Engine / Engine Block / Cylinder Head / 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 head
Straight-edge, feeler gauge

Install the cylinder head gasket.

Install the cylinder head.

Caution:

Refer to Fastener Caution.

Caution:

Refer to Torque-to-Yield Fastener Caution.

Note:

Note the correct tightening sequence.

Install NEW cylinder head bolts.

Tighten the bolts (1) in 5 passes. Use the EN-45059 sensor kit :

First pass to 25 Y (18 lb ft)
Second pass to 90°
Third pass to 90°
Fourth pass to 90°
Fifth pass to 45°

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 Tool ...

Cylinder Head Removal

Loosen the 12 cylinder head bolts in the sequence as shown. Use the following procedure: Loosen the cylinder head bolts 90 degrees. Loosen the cylinder head bolts 180& ...

Other materials:

Rear Bumper Impact Bar Replacement (Sedan)
Rear Bumper Impact Bar Replacement Callout Component Name Preliminary Procedure Remove the rear bumper fascia. Refer to Rear Bumper Fascia Replacement. 1 Rear Bumper Impact Bar Bolt (Qty:?€‰4 ...

Headlining Trim Panel Replacement (Sedan with Sunroof)
Headlining Trim Panel Replacement Callout Component Name Warning: Do not attempt to repair or alter the head impact energy-absorbing material glued to the headliner or to the garnish trims. If the material is damaged ...

Blower Motor Resistor Replacement
Blower Motor Resistor Replacement Callout Component Name Preliminary Procedure Remove the instrument panel insulator, if equipped. 1 Blower Motor Resistor Screw (Qty: 2) Caution: Refer ...

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