Saturday, April 7, 2012

Chevrolet Cobalt: Cylinder head replacing Procedure?

Note the details mentioned here Covers All American And Canadian Models Of Chevrolet Cobalt And Pontiac G5.

In this chapter details to replace cylinder head for 2.0L engine and 2.2L and 2.4L engine models are provided.

The details with diagrams are as follows:----

2.0L Engine, 2.2L Engine & 2.4L Engine.
  1. Remove the supercharger.
  2. Remove the intake manifold.
  3. Remove the exhaust manifold.
  4. Remove the timing chain.
  5. Drain the cooling system.
  6. Remove the cylinder head bolts in sequence and discard. 

    Fig. Cylinder head bolt removal sequence-2.0L, 2.2L, & 2.4L engines
  7. Remove the cylinder head and gasket.
  8. Clean all gasket surfaces.
To install:
  1. Install the cylinder head and gasket.
    Install NEW cylinder head bolts.
  2. Tighten the cylinder head bolts in sequence to 22 ft. lbs. (30 Nm) plus 155°. 

    Fig. Cylinder head tightening sequence-2.0L, 2.2L, & 2.4L engines
  3. Install the NEW front cylinder head bolts. Tighten the front cylinder head bolts to 26 ft. lbs. (35 Nm).
  4. Install the timing chain.
  5. Install the exhaust manifold.
  6. Lower the vehicle.
  7. Install the intake manifold.
  8. Install the supercharger.
  9. Fill the cooling system.

These details will help.


Car repair guide?

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