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Home >> BMW >> 2011 >> Z4 35is >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine - Tightening Torques (N52)) >> Camshaft >> 11 31 Camshaft

11 31 Camshaft

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TIGHTENING TORQUE SPECIFICATION - CAMSHAFT

  Type Thread Tightening specification Measure
1AZ ASA screws
Upper and lower bearing banks of exhaust camshaft to cylinder head.
N52K M7 x 70 Insert bolts dry.
Tighten screws from inside outwards.
Jointing torque and angle of rotation must be observed without fail.
Jointing torque
20 Nm
        Torque angle 70 °
2AZ ISA screws
Bearing cap of intake camshaft to cylinder head.
N52K M6 x 30.5   9 Nm
3AZ ASA screws
Timing chain module to cylinder head.
N52K M6 x 35   9 Nm
4AZ Bearing pin
Timing chain module to crankcase.
N52K M8   20 Nm
5AZ Bearing pin
Timing chain module to cylinder head.
N52K M7   14 Nm
6AZ Chain tensioner
Chain tensioner to cylinder head.
N52K M22 x 1.5 Replace sealing ring. 55 Nm
7AZ Plug
Assembly opening to cylinder head.
N52K M18 x 1.5   25 Nm