BMW C1 Repair Manual page 85

Technical Data
Camshaft
Inlet
Exhaust
Bearing cap
Bearing bore diameter
Wear limit
Inlet camshaft
Bearing journal diameter
Wear limit
Exhaust camshaft
Bearing journal diameter
Bucket-type tappet
Bore Ø in cylinder head
Wear limit
Extl. dia.
Wear limit
Radial play
Valves
Valve clearances with engine cold
(max. 35 °C/95 °F)
Inlet valves
Exhaust valves
Valve timing (at 1 mm/0.04 in valve
clearance)
Inlet opens
Inlet closes
Exhaust opens
Exhaust closes
Valve head dia.
Inlet
Exhaust
Stem dia.
Inlet
Wear limit
Exhaust
Wear limit
Run-out
Valve stem play - installed clearance
Inlet
Wear limit
Exhaust
Wear limit
Valve guide
Inlet/exhaust inside diameter
Wear limit
Projection
C 1
° 276
° 264
mm (in) 18.01...18.03 (0.709...0.7099)
mm (in) 18.05 (0.710)
mm (in) 17.969...17.980 (0.7074... 0.7078)
mm (in) 17.96 (0.707)
mm (in) 17.969...17.980 (0.7074... 0.7078)
mm (in) 17.96 (0.707)
mm (in) 26.007...26.008 (1.0239...1.0239)
mm (in) 26.04 (1.0252)
mm (in) 25.980...25.993 (1.0228...1.0239)
mm (in) 25.97 (1.022)
mm (in) 0.10 (0.003)
mm (in) 0.05...0.14 (0.001...0.005)
mm (in) 0.20...0.29 (0.007... 0,011)
24° before TDC
36° after BDC
34° before BDC
14° after TDC
mm (in) 20.2 (0.79)
mm (in) 18 (0.70)
mm (in) 3.957...3.981 (0.1558...0.1567)
mm (in) 3.94 (0.155)
mm (in) 5.945...5.960 (0.2340...0.2346)
mm (in) 5.935 (0.2337)
mm (in) 0.06 (0.002)
mm (in) 0.0160...0.058 (0.0006...0.0023)
mm (in) 0.130 (0.0051)
mm (in) 0.031...0.073 (0.0012...0.0029)
mm (in) 0.145 (0.0057)
mm (in) 4.002 ... 4.015 (0.1576 ... 0.1581)
mm (in) max. 0.5 (0.0197)
mm (in) 9.8...10.2 (0.3858...0.4016)
11.7