Isuzu I-280, I-350 2005-06

Cylinder Head

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Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Relieve the fuel system pressure.
  4.  
  5. Disconnect the negative battery cable.
  6.  
  7. Drain the engine cooling system.
  8.  
  9. Remove or disconnect the following:

    Exhaust manifold
     
    Timing chain and camshaft sprockets
     
    Cylinder head bolts
     
    Cylinder head from the engine
     

  10.  

To install:

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Fig. Cylinder head bolt torque sequence-2.8L engine



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Fig. Cylinder head bolt torque sequence-3.5L engine

  1. Clean and inspect the gasket mounting surfaces.
  2.  
  3. Install the cylinder head using a new gasket. Tighten the new bolts as follows:
    1. Standard bolts in sequence to 22 ft. lbs. Plus an additional 155°.
    2.  
    3. Tighten the 2 short end bolts to 62 inch lbs. (7 Nm), plus an additional 60°.
    4.  
    5. Tighten the 2 long end bolts to 62 inch lbs. (7 Nm), plus an additional 120°.
    6.  

  4.  
  5. Install or connect the following:

    Timing chain and camshaft sprockets
     
    Exhaust manifold
     
    Negative battery cable
     

  6.  
  7. Refill the engine cooling system.
  8.  
  9. Start the engine to check for leaks.
  10.  

 
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