Renault Magnum engine. Manual — part 30
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Cylinder head, tightening torques
The bolts can be re-used no more than
5 times maximum. Mark the bolt head with an indentation (A) after tightening each time using a centre punch. In
this case, apply engine oil to the screw-threads and under the bolt heads.Do not apply engine oil to new bolts, which are already pre-lubricated.
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Tap the screw-threads in the cylinder block then blow through with compressed air.
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The cylinder head must be positioned and tightened in accordance with the instructions given in the method (see page ).
The item numbers indicate the tightening sequence.
Stage
1
100±5 Nm
Stage
2 (check tightening)
100±5 Nm
Stage
3
120±5 °
Stage
4
90±5 °
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Cylinder head plugs, tightening torques
Plug
M10 x 1.00
25±3 Nm
Plug
M16 x 1.50
50±3 Nm
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