BMW 5251 Service Manual page 174

1 1 3-80
Cylinder Head Removal and lnstallation
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Install BMW special tool 11 7 380
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Install special tool 11 3 390 into special tool 11 7 380 and
tighten tensioner (1 1 3 390) to 0.7 Nm (6.3 in-lb) using spe-
cial tool 00 9 250.
NOTE-
BMW special tool 00 9 250 is a flexible shaft torque wrench.
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Tighten sprocket retaining bolts in the following order:
3 accessible bolts on left exhaust camshaft
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All bolts on right exhaust camshaft
3 accessible bolts on left intake camshaft
All bolts on right intake camshaft
Tightening torque
Sprocitet bolts to camshaft flange
15 Nm (11 ft-lb)
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Remove camshaft and crankshaft locking tools from engine.
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Using crankshaft center bolt, turn engine clockwise to access
remaining sprocket retaining bolts of left cylinder head cam-
shafts. Tighten remaining bolts.
Tightening torque
Sprocket bolts to camshaft flange
15 Nm (11 ft-ib)
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Remove BMW special tool 11 3 390 and 11 7 380 from right
cylinder head.
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Remove used gasket from right timing chain cover, clean
gasket surface.
4
Install new gasket and apply three Bond 1209 @sealant to
joint between cylinder head and timing cover (arrows).