BMW R 1100 RT Repair Manual page 72

Technical Data
Valves
Included angle between valves
Valve clearance with engine cold (max. 35 °C)
Inlet valve
Exhaust valve
Valve timing
Inlet opens
Inlet closes
Exhaust opens
Exhaust closes
Valve head dia.
Inlet
Exhaust
Inlet
Exhaust
Stem dia.
Inlet
Wear limit
Exhaust
Wear limit
Inlet
Wear limit
Exhaust
Wear limit
Valve head edge thickness
Inlet
Wear limit
Exhaust
Wear limit
Inlet
Wear limit
Exhaust
Wear limit
Max. runout of valve head at valve seat
Inlet, exhaust
11.22
R 850 GS
° 41
mm (in) 0.15 (0.0059)
mm (in) 0.30 (0.0118)
At zero valve clearance and 3 mm (0.1181 in)
valve li
1° before TDC
29° after BDC
28° before BDC
16° before TDC
Tolerance ± 3°
mm (in) 32 (1.25984)
mm (in) 27 (1.06299)
mm (in)
mm (in)
mm (in) 4.966...4.980
(0.16551...0.19606)
mm (in) 4.946 (0.19472)
mm (in) 4.956..4.970
(0.19512...0.19567)
mm (in) 4.936 (0.19433)
mm (in)
mm (in)
mm (in)
mm (in)
± 0.2
mm (in) 1.00
± 0.00787
(0.03937
mm (in) 0.5 (0.01969)
± 0.2
mm (in) 1.00
± 0.00787
(0.03937
mm (in) 0.5 (0.01969)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in) 0.035 (0.001378)
R 1100 GS
41
0.15 (0.0059)
0.30 (0.0118)
1° before TDC
29° after BDC
28° before BDC
16° before TDC
Tolerance ± 3°
36 (1.4173)
31(1.2205)
from 1996 mod. year on
34 (1.3386)
29 (1.1417)
5.960...5.975
(0.23465...0.23524)
5.940 (0.23386)
5.945...5.960
(0.23406...0.23465)
5.925 (0.23327)
from 1996 mod. year on
4.966...4.980
(0.16551...0.19606)
4.946 (0.19472)
4.956..4.970
(0.19512...0.19567)
4.936 (0.19433)
± 0.2
1.00
± 0.00787
) (0.03937 )
0.5 (0.01969)
± 0.2
1.65
± 0.00787
) (0.06496 )
1.0 (0.03937)
from 1996 mod. year on
± 0.2
1.00
± 0.00787
(0.03937 )
0.5 (0.01969)
± 0.2
1.00
± 0.00787
(0.03937 )
0.5 (0.01969)
0.035 (0.001378)