ION 2006-2007

Cylinder Head

Print

Removal & Installation




WARNING
Only remove the cylinder head when the engine is cold. Warpage may result if the cylinder head is removed while the engine is hot.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Drain the cooling system.
  4.  
  5. Drain the engine oil.
  6.  
  7. Properly relieve the fuel system pressure.
  8.  
  9. Remove or disconnect the following:

    Negative battery cable
     
    Intake manifold
     
    Exhaust manifold
     
    Timing chain
     
    Cylinder head bolts using the proper sequence
     
    Cylinder head
     

  10.  

To install:

Click image to see an enlarged view

Fig. Cylinder head bolt loosening sequence


NOTE
Set the crankshaft to 60 degrees Before Top Dead Center (BTDC) or after Top Dead Center (TDC) to prevent contact between the pistons and valves.

  1. Install or connect the following:

    New cylinder head gasket
     
    Cylinder head and align it on the dowels
     
    New cylinder head bolts and torque them in sequence to 22 ft. lbs. (30 Nm) plus 155 degrees
     
    Front 4 cylinder head bolts coated with Loctite® and torque them to 26 ft. lbs. (35 Nm)

    Click image to see an enlarged view

    Fig. Cylinder head bolt tightening sequence



    Click image to see an enlarged view

    Fig. Location of the 4 front cylinder head bolts

     
    Timing chain
     
    Exhaust manifold
     
    Intake manifold
     
    Negative battery cable
     

  2.  
  3. Fill the engine with clean oil.
  4.  
  5. Fill the cooling system.
  6.  
  7. Prime the fuel system by cycling the ignition ON for 5 seconds and OFF for 10 seconds a few times without cranking the engine.
  8.  
  9. Start the engine, check for leaks, and repair if necessary.
  10.  

 
label.common.footer.alt.autozoneLogo