Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2006HHR L4-2.2LREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINECYLINDER HEAD ASSEMBLYSPECIFICATIONS
2006 Chevrolet HHR L4-2.2L
Cylinder Head Assembly: Specifications
2006 Chevrolet HHR L4-2.2LSECTION Specifications
Cylinder Head
Surface Flatness - Block Deck - Transverse 0.030 mm (0.0012 inch)
Surface Flatness - Block Deck - Longitude 0.050 mm (0.002 inch)
Surface Flatness - Block Deck - Overall 0.1 mm (0.004 inch)
Camshaft Cap Bolt 10 Nm (89 inch lbs.)
Tighten the camshaft bearing cap bolts in increments of 3 turns until they are seated.
Camshaft Sprocket Bolt
First Pass 85 Nm (63 ft. lbs.)
Final Pass 30 degrees
Cylinder Head Bolt
Important: Always use new cylinder head bolts.
First Pass 30 Nm (22 ft. lbs.)
Final Pass 155 degrees
Intake Manifold to Cylinder Head Bolt 10 Nm (89 inch lbs.)
Intake Manifold to Cylinder Head Nut 10 Nm (89 inch lbs.)
Intake Manifold to Cylinder Head Stud 6 Nm (53 inch lbs.)
Exhaust Manifold to Cylinder Head Nut 14 Nm (124 inch lbs.)
Exhaust Manifold to Cylinder Head Stud 10 Nm (89 inch lbs.)
Surface Flatness - Block Deck - Transverse 0.030 mm (0.0012 inch)
Surface Flatness - Block Deck - Longitude 0.050 mm (0.002 inch)
Surface Flatness - Block Deck - Overall 0.1 mm (0.004 inch)
Camshaft Cap Bolt 10 Nm (89 inch lbs.)
Tighten the camshaft bearing cap bolts in increments of 3 turns until they are seated.
Camshaft Sprocket Bolt
First Pass 85 Nm (63 ft. lbs.)
Final Pass 30 degrees
Cylinder Head Bolt
Important: Always use new cylinder head bolts.
First Pass 30 Nm (22 ft. lbs.)
Final Pass 155 degrees
Intake Manifold to Cylinder Head Bolt 10 Nm (89 inch lbs.)
Intake Manifold to Cylinder Head Nut 10 Nm (89 inch lbs.)
Intake Manifold to Cylinder Head Stud 6 Nm (53 inch lbs.)
Exhaust Manifold to Cylinder Head Nut 14 Nm (124 inch lbs.)
Exhaust Manifold to Cylinder Head Stud 10 Nm (89 inch lbs.)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.