BMW 5251 Service Manual page 163

11 3-69
Cylinder Head Removal and Installation
4
Lock crankshaft in TDC position with BMW special tool 11 3
200 (arrow).
NOTE-
Boss for special tool 11 3 200 located at rear of engine oil
pan.
4
Working at left cylinder head (driver's side) fit primary sprock-
et and chain to camshaft flange, centering threaded bores.
Insert bolts (arrows) and hand tighten.
? - I
I 4
Install BMW special tool 11 3 390 into right timing case cover.
NOTE-
BMW
special tool 00 9 250 is a flexible shaft torque wrench.
I
-
Tighten sprocket retaining bolts in the following order:
All bolts on left cylinder head exhaust camshaft
3 accessible bolts on right cylinder head exhaust camshaft
All bolts on left cylinder head intake camshaft
3 accessible bolts on right cylinder head intake camshaft
r"".."..7n
Tightening torques
Sprocltet bolts to camshait flange 15 Nm (11 ft-lb)
-
Remove camshaft and crankshaft locking tools from engine.
-
Using crankshaft center bolt, turn engine clockwise to access
remaining sprocket retaining bolts of right cylinder head cam-
shafts. Tighten remaining bolts.
Tightening torques
Sprocket bolts to camshaft flange 15 Nm (11 ft-lb)