CYLINDER HEAD GASKET > REMOVAL

for Preparation Click here



1. REMOVE CAMSHAFT

  1. Remove the camshaft (Click here).



2. REMOVE CYLINDER HEAD SUB-ASSEMBLY


    A199372E01

  1. Using several steps, uniformly loosen and remove the 10 cylinder head bolts and 10 plate washers with a 10 mm bi-hexagon wrench in the sequence shown in the illustration.

    NOTICE:
    Head warpage or cracking could result from removing the bolts in the wrong order.

  1. Using a screwdriver with its tip wrapped with protective tape, pry between the cylinder head and cylinder block, and remove the cylinder head.

    NOTICE:
    Be careful not to damage the contact surfaces of the cylinder head and cylinder block.



3. REMOVE CYLINDER HEAD GASKET


    A199373

  1. Remove the cylinder head gasket.



4. INSPECT CYLINDER HEAD FOR FLATNESS


    A198667E04

  1. Using a precision straightedge and a feeler gauge, measure the surfaces that contact the cylinder block and the manifolds for warpage.
    Text in Illustration 
    *a
    		Cylinder Block Side
    *b
    		Intake Manifold Side
    *c
    		Exhaust Manifold Side

    Maximum Warpage:
    Item
    		Specified Condition
    Cylinder block side
    		0.05 mm (0.0020 in.)
    Intake manifold side
    		0.10 mm (0.0039 in.)
    Exhaust manifold side
    		0.10 mm (0.0039 in.)

    If the warpage is greater than the maximum, replace the cylinder head.



5. INSPECT CYLINDER HEAD FOR CRACKS


    A198668

  1. Using a dye penetrant, check the intake ports, exhaust ports and cylinder head surface for cracks.
    If cracked, replace the cylinder head.



6. INSPECT CYLINDER HEAD SET BOLT


    A199982E04

  1. Using a vernier caliper, measure the length of the cylinder head set bolt from the seat to the end.
    Text in Illustration 
    *a
    		Measurement Length

    Standard bolt length:
    125.3 to 126.7 mm (4.9331 to 4.9882 in.)

    Maximum bolt length:
    128.2 mm (5.047 in.)

    If the bolt length is greater than the maximum, replace the cylinder head set bolt.