Porsche 911 GT3 Cup 2008, Техническое руководство

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Engine component tightening torques
All component tightening torques listed are given in Newton metres. Please ensure that your torque wrench is
calibrated correctly!
Crankshaft and crankcase:
Connecting rod
(see section connecting rod) M10 x 1.25 30Nm +60°
Oil pump M8 23
Crankcase studs M10 x 1.25 50
Crankcase nuts & bolts M8 23
Flywheel to crankshaft M10 x 1.25 90
Always renew bolts after flywheel removal
V-belt pulley to crankshaft M14 x 1.5 170
Plug screw for pressure release valve M18 x 1.5 40
Crankcase oil drain screw M20 x 1.5 50
Cylinder head and valve train:
The exact procedure for tightening the cylinder head bolts is described in
the section ‘Cylinder head’.
Camshaft housing on cylinder head
Initial torque M8 23
Final torque M8 28
Knock sensor on cylinder casting M8 23
Spark plugs M12 x 1.25 20
Attention: The spark plugs should be tightened a maximum of 5
times.
Camshaft pulley to camshaft M12 x 1.5 30 +90°
Timing chain case to crankcase 23
Valve cover to camshaft housing M 6 9.7
Camshaft bearing cap 13
Ancillary components:
Alternator belt pulley 55
Exhaust manifold to cylinder head 23
Lambda sensor M18 x 1.5 50
Clutch to flywheel M8 x 45 33