CYLINDER HEAD GASKET REMOVAL

CAUTION / NOTICE / HINT

Note


  • When replacing the parts in the following chart (A), replace the No. 1 injection pipe sub-assembly, No. 2 injection pipe sub-assembly and/or fuel inlet pipe sub-assembly with new ones.

    Replaced Parts (A) Pipes Requiring New Replacement
    Injector assembly (including shuffling the injector assemblies between the cylinders)

    • No. 1 injection pipe sub-assembly

    • No. 1 injection pipe sub-assembly
    Supply pump assembly Fuel inlet pipe sub-assembly

    • Common rail assembly

    • Cylinder block sub-assembly

    • Cylinder head sub-assembly

    • Cylinder head gasket

    • Timing chain case assembly

    • No. 1 injection pipe sub-assembly

    • No. 2 injection pipe sub-assembly

    • Fuel inlet pipe sub-assembly

  • After removing the No. 1 injection pipe sub-assembly, No. 2 injection pipe sub-assembly and/or fuel inlet pipe sub-assembly, clean them with a brush and compressed air.

  • The injector assembly is a precision instrument. Do not use the injector assembly if it is struck or dropped.

  • The supply pump assembly is a precision instrument. Do not use the supply pump assembly if it is struck or dropped.

  • Hold the supply pump assembly itself during removal and installation. Do not hold the pre-stroke control valve or fuel pipe, etc.

  • Make sure foreign matter does not enter the fuel path.

PROCEDURE


  1. REMOVE CAMSHAFT

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  2. REMOVE TIMING CHAIN COVER ASSEMBLY

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  3. REMOVE NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY

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  4. REMOVE VALVE LASH ADJUSTER ASSEMBLY

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  5. REMOVE CYLINDER HEAD SUB-ASSEMBLY


    1. B001IHWE02

      Uniformly loosen the 10 cylinder head set bolts in several passes in the sequence shown in the illustration. Then remove the 10 cylinder head set bolts and 6 cylinder head set bolt spacers.

      Note


      • Cylinder head sub-assembly warpage or cracking could result from removing bolts in the incorrect order.

      • Be careful not to drop the cylinder head set bolt spacers into the cylinder head sub-assembly.

    2. Lift the cylinder head sub-assembly from the ring pins on the cylinder block sub-assembly, and place the cylinder head sub-assembly on wooden blocks on a bench.

      Note

      Be careful not to damage the contact surfaces of the cylinder head sub-assembly and cylinder block sub-assembly.

      Tech Tips

      If the cylinder head sub-assembly is difficult to remove, use a screwdriver to pry between the cylinder head sub-assembly and cylinder block sub-assembly.

  6. REMOVE CYLINDER HEAD GASKET


    1. Remove the cylinder head gasket from the cylinder block sub-assembly.

  7. INSPECT CYLINDER HEAD SET BOLT

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