Cylinder Head Assembly: Specifications

2009 Chevrolet Cobalt L4-2.2LSECTION Specifications
CYLINDER HEAD BOLTS





Cylinder Head Bolt
First Pass 30 Nm 22lb ft
First Pass 155 degrees

CYLINDER HEAD BOLT RE-USABILITY

Note: Do not use any sealing material. Always use NEW cylinder head bolts.

INTAKE MANIFOLD

Intake Manifold to Cylinder Head Bolt 10 Nm (89 lb in)
Intake Manifold to Cylinder Head Nut 10 Nm (89 lb in)

CAMSHAFT BEARING CAP

Camshaft Cap Bolt 10 Nm (89 lb in)

MAIN BEARING CAP

Crankshaft Bearing - Lower Crankcase to Block - Bedplate
First Pass 20 Nm (15 lb ft)
Final Pass 70 degrees

ROD BEARING CAP

Connecting Rod Bolt
First Pass 25 Nm (18 lb ft)
Final Pass 100 degrees

CRANKSHAFT PULLEY

Crankshaft Balancer Bolt
First pass 100 Nm (74 lb ft)
Final pass 125 degrees

FLYWHEEL/FLEXPLATE

Flexplate (AMT) Bolt
First Pass 53 Nm (39 lb ft)
Final Pass 25 degrees

Flywheel (SMT) Bolt
First Pass 53 Nm (39 lb ft)
Final Pass 25 degrees

OIL PUMP

Oil Pump Cover Bolt 6 Nm (53 lb in)

EXHAUST MANIFOLD

Exhaust Manifold to Cylinder Head Nut 14 Nm (124 lb in)

WATER PUMP

Water Pump Bolts 25 Nm (18 lb ft)
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.