11 11 Engine block

WARNING: This page is about a different car, the 2003 BMW Z8, 2002 BMW Z8, 2001 BMW Z8, and 2000 BMW Z8. However, it is still accessible from the selected car via links, so may be relevant.

TIGHTENING TORQUE SPECIFICATIONS (ENGINE BLOCK)

	Type	Thread	Tightening specification	Measure
2AZ Main bearing screws	S62 / N62 / N73	M11	Replace screws Do not wash off screw coating
			Jointing torque	20 Nm
			Torque angle	100°
Main bearing screws Engine block lower section to upper section	N40 / N42 / N45 / N46	M10	Replace screws
			Jointing torque	20 Nm
			Torque angle	70°
3AZ Taper screw mount on main bearing
Screws and spacer bolts	M60 / M62 / M70 / S70 / M73 / S62	M8	Replace screws
			Jointing torque	20 Nm
			Torque angle	45°
	N62 / N73	M8		34 Nm
Threaded support sleeves	M70 / M60 / M62 / S70 / M73 / S62			10 Nm
	N62 / N73			6 Nm
4AZ Struts/bracing shell	M67	M10.9		66 Nm
	all others	M10		43 Nm
	All	M8		22 Nm
5AZ Drain plug for coolant in engine block	All	M14 x 1.5		25 Nm
6AZ Main oil gallery seal plugs	All	M16 x 1.5		34 Nm
	All	M18 x 1.5		40 Nm
	N62 / N73	M18 x 1.5	Insert screw with Loctite	25 Nm
	N40 / N42 / N45 / N46	M16 x 1.5		36 Nm
Main oil gallery, rear (seal plugs with control valve)	M62 / S62	M18 x 1		10 Nm
7AZ Oil spray nozzle on engine block	All	M6		10 Nm
Oil spray nozzle screwed into bearing seat (coat thread with Loctite 243)	M73	M8 x 1		5 Nm
Oil spray nozzle to engine block (banjo bolt)	all others	M8 x 1		12 Nm
8AZ Pressure holding valve to crankcase (1bar)	S54 / B32			20 Nm
1AZ Connecting rod bolts	S14		Replace, wash and oil screws	55 Nm
	S38		Replace, wash and oil screws
			Application torque	5 Nm
			Jointing torque	30 Nm
			Torque angle	60°
	S50 / S62	M10 x 1.25	Replace, wash and oil screws
			Application torque	5 Nm
			Jointing torque	20 Nm
			Torque angle	65°
	S54	M11 x 1.25	The tightening specification is described in the work step "Removing and installing piston" .