BMW 5251 Service Manual page 298

1 17-62
Camshaft Timing Chain
4
Install intake camshaft spring plate so that FRONT mark is
visible. Install mounting nuts (arrows) finger tight.
4
Worlting at exhaust side, insert sprocket mounting Torx
screws into threaded lioles (arrows).
Initially tighten screws to approx. 5 Nm (44 in-lb), then back
off one-half turn.
4
Fit thrust spacer (A) on exhaust camshaft.