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| Tighten cylinder head bolts in the tightening order shown as follows: |
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| Tighten all screws to 30 Nm. |
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| Then, torque all bolts further to 90° (1/4 turn) with a rigid wrench. |
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| Finally, once again turn all bolts through a further 90° (1/4 turn). |
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| Insert the hydraulic supporting elements in the cylinder head and position the relevant roller rocker arm on the valve stem ends or supporting elements. |
Further installation occurs in a similar way in reverse order to removal. |
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