BMW F 650 GS Repair Manual page 112

4
3
Installing camshaft and adjust-
11 31 529
ing valves
•
Oil outside of bucket tappets and reinstall on
original valves.
•
Measure thickness of shims with micrometer and
note down dimension.
•
Place lower part of camshaft carrier (1) on cylin-
der head.
•
Fit camshafts with cam lobes facing upwards,
press down by hand and measure valve clear-
ance with feeler gauge.
L
Note:
The decompressor in the exhaust camshaft must
not press against the bucket tappet, or else the
valve clearance will be incorrect.
•
Note down dimensions.
•
Determine the difference between the nominal
and actual values.
•
Check thickness of shims with micrometer and
replace as appropriate.
Valve clearances:
Inlet valve ............ 0.05...0.10 mm (0.002...0.004 in)
Exhaust valve ...... 0.25...0.30 mm (0.010...0.012 in)
•
Insert chain guide rail (3) in chain cavity.
11.54
1
2
e
Caution:
Marks on the timing-chain sprockets (arrow) must
be parallel with the cylinder head, the bores in the
timing-chain sprockets must be at the top (TDC po-
sition).
•
Oil the camshaft journals.
•
Install the exhaust camshaft first, then the inlet
camshaft.
•
Install the upper part of the camshaft carrier (2)
and tighten.
•
Clean the threads of the chain guide
fasteners (4), coat with Loctite 243 and install
the fasteners.
E110420
E110410