BMW 5251 Service Manual page 231

11
6-55
Cvlinder Head and valvetrain1
4
Remove cylinder head cover sealing gasltets from left cylin-
der head cover. Install BMW special tool 11 1 412 into gasket
groove of cylinder head cover.
Install left cylinder head cover. Fit cylinder head cover re-
taining nuts to cylinder head cover studs at cylinders 5 and
6 (first two cylinders on left side cylinder bank).
*
Tighten nuts uniformly in
' I ?
turn steps.
NOTE-
BMW special tool 11 1 4 12presses upper timing chain cover
to level of cylinder head.
Tightening torque
Cylinder head cover
nuts 10
Nm (7.5 it-lb)
-
Tighten left upper timing chain cover retaining bolts in two
passes.
Tightening torque
Timing chain cover to head
10
Nm (7.5 ft-lb)
-
Remove cylinder head covers and remove BMW special
tools 11 4 41 11412 from cylinder head covers.
-
Fit new gasket to cylinder head cover without strain.
-
Apply Three Bond@ 1209 sealant to joints between cylinder
head and timing cover.
4
Malte sure half-moon cutouts (A) at rear of cylinder heads fit
correctly to cylinder head sealing surface. Apply Three
Bond@ 1209 sealant at corners of half-moon cutouts (B).
-
Remainder of installation is reverse of removal.