BMW 5251 Service Manual page 563

Self-adjusting clutch (SAC), breaking in
With normal driving, 800 to 1000 gearshifts are required to
break in the clutch.
Break in the SAC gradually, with light to medium loads, to en-
sure correct operation and long life. Fast sports driving ma-
neuvers may destroy a new clutch.The following break-in
procedure helps to create the correct coefficient of friction.
Drive normally on level grade. Starting speeds on level
grade may be up to 2000 rpm.
Upshift and downshift through all the gears at 3500
-
4000
rpm.
On medium grades (approx. 12% and up), start off at ap-
prox. 2500 rpm for the first 5 or so times.
Tightening torques
Clutch slave cylinder to transmission case 22 Nm (16 It-lb)
Clutch master cylinder to pedal cluster 10 Nm (89 in-lb)
Bralte fluid line to clutch master or slave cylinder 17 Nm (13 ft-lb)
Transmission to engine
M8 (Torx) 22 Nm (16 fl-lb)
.
M1O (Torx) 43 Nm (32 ft-lb)
MI2 (Torx) 72 Nm (53 it-lb)
Flywheel to crankshaft
6
cylinder engine (use new self-loclting bolts) 105 Nm (77 ft-lb)
V-8
engine 105 Nm (77 ft-lb)
Clutch to flywheel
M8 (8.8 grade)
M8 (10.9 grade)
24 Nm
(18
ft-lb)
34 Nm (25 ft-lb)