1131 CAMSHAFTS (Z4 sDrive30i)

1131 TIGHTENING TORQUE OVERVIEW

Basic carrier to cylinder head
M6	Tightening torque	8 Nm
Bearing journal to crankcase
Replace bearing journal.	Tightening torque	22 Nm
Camshaft sensor wheel to intake camshaft
M6x16 Replace screw.	1. Tightening torque	5 Nm
M6x16 Replace screw.	2. Angle of rotation	90°
Chain tensioner to cylinder head
Chain tensioner	Joining torque	20 Nm
Chain tensioner	Angle of rotation	40°
Exhaust camshaft to cylinder head
M6 Tensile strength of screw 8.8	Joining torque	9.6 Nm
M6 Tensile strength of screw 8.8	Tightening torque	9.6 Nm
M6 Tensile strength of screw 10.9	Joining torque	11.8 Nm
M6 Tensile strength of screw 10.9	Tightening torque	11.8 Nm
Guide rail to cylinder head
Replace bearing journal.	Tightening torque	20 Nm
Intake camshaft to cylinder head
M6 Tensile strength of screw 8.8	Joining torque	9.6 Nm
M6 Tensile strength of screw 8.8	Tightening torque	9.6 Nm
M6 Tensile strength of screw 10.9	Joining torque	11.8 Nm
M6 Tensile strength of screw 10.9	Tightening torque	11.8 Nm
Preload timing chain
	Tightening torque	0.6 Nm
Tensioning rail to crankcase
M8x15 Replace screw.	Tightening torque	22 Nm
Test gauge to basic carrier
M6	Tightening torque	8 Nm

11 31 CHAIN TENSIONER - TIGHTENING TORQUE SPECIFICATIONS

	Tightening specifications	Dimension
1AZ Chain tensioner to cylinder head	1. Tightening torque	20 Nm
1AZ Chain tensioner to cylinder head	2. Angle of rotation	30°