BMW R 1100 RT Repair Manual page 71

Technical Data
Engine, general
Engine design
Location of engine number
Cylinder bore
Stroke
Effective displacement
Compression ratio
Power output
Max. torque
Permissible maximum engine speed
Permissible continuous engine speed
Idle speed
Direction of rotation
Compression test pressure
good
normal
poor
Intake port dia./cylinder head
Lubrication system
Theoretical vol. in circulation at 6000 min
Lubricating oil
Cooling oil
Oil filter
Pressure differential needed to open
bypass valve
Oil pressure warning light comes on below
Pressure relief valve opens at
Operating pressure
Oil content
without filter change
with filter change
min/max
Permissible oil consumption
Oil pumpe
Oil pump
Housing depth
Height of rotor
Axial play
Wear limit
R 850 GS
Four-stroke flat twin, air-cooled with oil-cooled
exhaust ports, installed longitudinally, 4 valves
per cylinder, two high-mounted camshafts, elec-
tronic fuel injection.
Crankcase
mm (in) 87.5 (3.445)
mm (in) 70.5 (2.776)
cc 848
10.3 : 1
-1
kW(bhp)/min 52(70)/7000
-1
Nm/min 77/5500
-1
min 8100
-1
min 7800
-1 +150
min 1000
Clockwise, looking at
ignition system
bar (psi) above 10 (145.04)
bar (psi) 8.5...10
(123.28...145.04)
bar (psi) below 8.5(123.28)
mm (in) 44 (1.732)
-1
l (Imp. pints) 36 (63.36)
l (Imp. pints) 30 (52.8)
Full-flow type
bar (psi) 1.5 (21.756)
bar (psi) 0.2...0.5 (2.9...7.25)
bar (psi) 5.5 (79.77)
bar (psi) 3.5...6.0 (50.76...87.02) 3.5...6.0 (50.76...87.02)
l (Imp. pints) 3.50 (6.16)
l (Imp. pints) 3.75 (6.6)
l (Imp. pints) 0.50 (0.88)
l/1000 km 1.0
Imp.pint/miles (1.41/500)
2 Duocentric pumps
mm (in) 12.02...12.05
mm (in) (0.47322...0.47441)
10.02...10.05
(0.3945...0.3957)
mm (in) 11.95...11.98
mm (in) (0.4705...0.4717)
9.95...9.98
(0.3917...0.3929)
mm (in) 0.04...0.1
(0.0016...0.0039)
mm (in) 0.25 (0.0098)
R 1100 GS
99.0 (3.898)
70.5 (2.776)
1085
10.3 : 1
59(80)/6750
97/5250
7800
7600
+150
1000
Clockwise, looking at
ignition system
above 10 (145.04)
8.5...10
(123.28...145.04)
below 8.5(123.28)
44 (1.732)
36 (63.36)
30 (52.8)
Full-flow type
1.5 (21.756)
0.2...0.5 (2.9...7.25)
5.5 (79.77)
3.50 (6.16)
3.75 (6.6)
0.50 (0.88)
1.0
(1.41/500)
2 Duocentric pumps
12.02...12.05
(0.47322...0.47441)
10.02...10.05
(0.3945...0.3957)
11.95...11.98
(0.4705...0.4717)
9.95...9.98
(0.3917...0.3929)
0.04...0.1
(0.0016...0.0039)
0.25 (0.0098)
11.21