| Removing and installing cylinder head |
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| Cylinder heads with cracks between the valve seats can be still used without a reduction in useful life, as long as the cracks are no more than 0.5 mm in width. |
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| The cylinder heads for diesel engines may not be reworked. |
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| Renew cylinder head bolts. |
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| When fitting, replace the 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 fitting a new cylinder head with the camshafts fitted, the contact surfaces between the roller rocker arms and the cam contact surfaces must be oiled following the fitting of 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 fitting a new cylinder head or cylinder head gasket, all the coolant must be drained again. |
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