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| Replace cylinder head bolts. |
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| When performing installation work replace the self-locking nuts. |
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| Replace screws which have been tightened to a torquing angle as well as gasket rings and seals. |
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| If a replacement cylinder head is installed, it is necessary to oil all the contact surfaces between supporting elements, roller rocker arms and cam tracks of the camshafts before installing the cylinder head cover. |
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| Remove the new cylinder head gasket from its wrapping immediately before fitting. |
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| Treat the new cylinder head seal with the utmost care. Damage to the silicone layer and in the surrounding area result in leakages. |
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| There must not be any oil or coolant present in the threaded holes for the cylinder head bolts. |
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| Make sure that when cleaning the cylinder head and cylinder block no foreign bodies can get into the cylinder or into the oil and coolant galleries. |
WARNING | Wear protective gloves when working with sealant and grease remover. |
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| When conducting repairs sealant residues should be removed from the contact surface of the cylinder head/cylinder block using a chemical cleaner. |
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| If the crankshaft was rotated in the meantime: Position piston for cylinder 1 to top dead centre and turn back crankshaft slightly. |
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| Fit on new cylinder head gasket. The legend (part number) must be legible on the inlet side. |
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