| Removing and installing cylinder head |
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| Renew the cylinder head bolts. |
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| When performing repair work, renew self-locking nuts and bolts. |
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| Renew bolts which have a specified tightening angle, as well as seals and gaskets. |
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| When installing an exchange cylinder head with camshafts fitted, oil the contact surfaces between roller rocker fingers and cam running surfaces after fitting the cylinder head. |
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| The plastic protectors fitted to protect the open valves should not be removed until the cylinder head is ready to be fitted. |
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| When replacing the cylinder head or cylinder head gasket, the old coolant must also be replaced. |
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| Cylinder heads which have cracks between the valve seats or between valve seat inserts and the spark plug thread can be used further without reducing service life, provided the cracks do not exceed a maximum of 0.3 mm in width, or when no more than the first 4 turns of the spark plug threads are cracked. |
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