BMW 5251 Service Manual page 229

Cylinder Head and valvetrain'
Fit sensor gear with mark (arrow) pointing upwards. Install
bolts and finger tighten.
4
Attach BMW special tool 11 7 380 to right cylinder head in
place of upper timing case cover.
Install BMW special tool 11 3 390 into 11 7 380.
Using BMW special tool 00 9 250, tighten adjustable ten-
sioner screw on 11 3 390 to 0.7 Nm (6.3 in-lb).
-
T~ghten camshaft sprocket bolts in the following order:
1. Exhaust camshaft, left head.
2. Exhaust camshaft, right head.
3. Intake camshaft, left head.
4. Intake camshaft, right head.
Tightening torques
Sprocket
to
camshaft flange
15 Nm
(I 1 ft-lb)
-
Remove camshaft locking tools from both cylinder heads.
-
Remove crankshaft locking tool.
4
lnstall oil lines to left and right cylinder heads.
-
Remove adjustable timing chain tensioner tool and setup
block from right cylinder head.