Corolla 2006-2007

Cylinder Head

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Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Drain the cooling system.
  4.  
  5. Remove or disconnect the following:

    Battery
     
    ECU box
     
    Coolant reservoir
     
    Air cleaner assembly
     
    Accelerator cable
     
    Alternator
     
    Exhaust pipe
     
    Exhaust manifold
     
    Coils
     
    Spark plugs
     
    PCV hoses
     
    Throttle body
     
    Injectors
     
    Wiring harness
     
    Intake manifold
     
    Camshaft position sensor
     
    ECT sensor
     
    PCV valve
     
    Oil filler cap
     
    Camshaft sprockets
     
    Camshafts
     
    Hoses
     
    Cylinder head bolts in sequence. To prevent damage to the cylinder head, loosen each bolt about 1 / 4 of a turn during each pass until the bolts are loose.
     
    Cylinder head

    Click image to see an enlarged view

    Fig. Removing cylinder head-1 of 6



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    Fig. Removing cylinder head-2 of 6



    Click image to see an enlarged view

    Fig. Removing cylinder head-3 of 6



    Click image to see an enlarged view

    Fig. Removing cylinder head-4 of 6



    Click image to see an enlarged view

    Fig. Removing cylinder head-5 of 6



    Click image to see an enlarged view

    Fig. Removing cylinder head-6 of 6

     

  6.  

To install:

  1. Clean and degrease the surface of the cylinder head and engine block.
  2.  
  3. Install or connect the following:

    New gasket on the engine block with the Lod No. stamp facing up.

    Click image to see an enlarged view

    Fig. Position the head gasket correctly on the cylinder head-1.8L (1ZZ-FE) engine

     
    Cylinder head
     
    Apply a light coat of oil to cylinder head bolt threads and tighten in sequence. Replace any bolt that appears deformed. Bolts: 36 ft. lbs. (49 Nm).

    Click image to see an enlarged view

    Fig. Cylinder head tightening sequence

     
    Tighten each bolt in sequence an additional 90 degree turn.
     
    Camshafts
     
    Sprockets
     
    Oil filler cap
     
    PCV valve
     
    ECT sensor
     
    Intake manifold
     
    Wiring harness
     
    Exhaust manifold
     
    Exhaust pipe
     
    Alternator
     
    accelerator cable
     
    Air cleaner
     
    ECM box
     
    Battery
     

  4.  
  5. Fill the cooling system to the proper level.
  6.  
  7. Start the vehicle, check for leaks and repair if necessary.
  8.  

 
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