BMW 5251 Service Manual page 296

11 7-60
Camshaft Timing Chain
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Install and tighten down threaded locating studs (arrows) in
end of exhaust camshaft.
Tightening torque
Exhaust camshaft locating
stud 20 Nrn (15
ft-lb)
4
Install secondary chain tensioner on cylinder head.
-
Make sure tensioner is locked in compressed position as
described earlier.
Fit exhaust camshaft splined sleeve, aligning gap in sleeve
splines with corresponding gap on camshaft splines
(arrows).