BMW R 850 C User Manual

11.55
Installing cylinder head
•
Install cylinder head gasket.
•
Fit cylinder head/insert correctly positioned cam-
shaft chain sprocket (1) and timing chain into
chain cavity.
•
Install valve gear support (2).
•
Tighten cylinder head down.
e Caution:
Install collar (arrow) of cylinder head nut towards cyl-
inder head.
X Tightening torque/tightening order:
1. Tighten cylinder head nuts (oiled) crosswise
1.1 Tighten all nuts....................................... 20 Nm
1.2 Tighten all nuts to correct angle .................. 90°
1.3 Tighten all nuts to correct angle .................. 90°
2. M 10 bolt................................................ 40 Nm
3. M 6 screw ................................................ 9 Nm
X Tightening torque:
Take up slack after 1000 km (app. 600 miles)
Tighten cylinder head nuts in a crosswise pattern
1. Unfasten one nut
2. Tighten one nut to initial value................. 20 Nm
3. Tighten nut to wrench angle...................... 180°
4. Unfasten/retighten M10 screw ................ 40 Nm
•
Fit camshaft chain sprocket in accordance with
adjustment specification.
•
Lock clutch housing with special tool
BMW No. 11 5 640.
•
Tighten camshaft chain sprocket.
X Tightening torque:
Camshaft sprocket retaining screw .............. 65 Nm
•
Insert the left-side camshaft sprocket with pin
into the camshaft and set the left cylinder to TDC
on the ignition stroke.
•
Fit camshaft chain sprocket in accordance with
adjustment specification.
•
Tighten camshaft chain sprocket.
•
Install chain tensioner.
•
Check that marks on camshaft sprockets are in
accordance with adjustment specification.
X Tightening torque:
Chain tensioner............................................ 32 Nm
RS110930
M6 x 30
M6 x 30
M6 x 30
M6 x 60
2
1

BMW R 850 C Specifications

General

Brand	BMW
Model	R 850 C
Category	Motorcycle
Language	English