BMW 5251 Service Manual page 228

ICylinder Head and Valvetrain
- .
Rotate engine clockwise (arrow) from 45" before TDC to
TDC position.
Secure crankshaft in TDC position with BMW special tool
11 2 300.
4
Fit sprocket with primary chain to intaite camshaft on right
cylinder head:
Press timing chain tensioner rail against timing chain
(white arrow) to check that fastener holes are centered in
sprocket slots (black arrows) when slack is removed from
timing chain.
If necessary, remove sprocket and reposition.
Fit sprocket with chain to intake camshaft
5-8 with long bores aligned centrally.
Install bolts (arrows) and finger tighten
cylinder head