BMW 5251 Service Manual page 175

Cylinder Head Removal and Installation
1
Replace sealing O-ring (arrow) in right cylinder head before
installing upper timing chain cover.
4
Install oil supply lines and mounting nuts on both heads
(ar-
rows).
-
Using a new gasket, install upper timing chain cover on right
head and tighten cover fasteners finger tight.
4
Remove right cylinder head cover gasket and install spacing
tool (BMW 11 1 41 1) in place of gasket.
-
Install right cylinder head cover fasteners and tighten uni-
formly in
'1,
turn steps.
Tightening torque
Cylinder head cover fasteners
10
Nm
(7.5
ft-lb)
-
Tighten right upper timing cover retaining fasteners in two
passes.
I
Tightening torque
Upper timing chain cover
10
Nm
(7.5
ft-lb)
-
Reinstall primary timing chain tensioner with new sealing
washer.
Tightening torque
Chain tensioner to timing cover
65
Nm
(48
ft-lb)
-
Remove right cylinder head cover and remove special spac-
ingtooi 11 4411.