BMW 5251 Service Manual page 172

11
3-78
Cylinder Head Removal and Installation
4
Using a torque angle gauge, tighten cylinder head bolts to
specified torque angle in stages 2 and 3.
Tiahtenina toraues
-
- .
Stage I
30
Nm (22
ft-lb)
Stage I1
Stage Ill
4
Using BMW special tool 11 3 430, or a 27 mm open-ended
wrench, rotate camshafts until marker bores (drilled holes)
point upwards (arrows).
Do not damage cylinder head with wrench. If necessary.
grind outer side of wrench jaws to prevent damaging cylinder
head.
4
Install camshaft locking tool set (BMW special tool set 11 2
440) on right cylinder head. Fit tools on cyllnder heads with-
out gaps.
4
Install camshaft locking tool set (BMW special tool set 11 2
440) on left cylinder head. Fit tools on cylinder head without