BMW R 1200 C Repair Manual page 43

Technical data
Valve guide
Valve guide
Bore in cylinder head
Overlap
Repair stages
Replacement valve guide Extl. dia.
Oversize valve guide
Valve guide
Radial clearance
Inlet
Wear limit
Exhaust
Wear limit
Valve spring
Spring length, off-load
Wear limit
Rocker
Bore dia.
Rocker shaft dia.
Radial clearance
Wear limit
Axial play min.
max.
Camshaft
Opening angle, inlet/exhaust cams
Cam spread, inlet/exhaust
Marking
Inlet valve lift
Exhaust valve lift
Camshaft bearing bore dia.
Camshaft dia.
Radial clearance
Wear limit
Width of guide bearing
Width of camshaft bearing
Axial play
Wear limit
Extl. dia. mm (in) 12.533...12.544 (0.4934...0.4939)
mm (in) 12.500...12.518 (0.4921...0.4928)
mm (in) 0.015...0.044 (0.0006...0.0017)
mm (in) 12.550...12.561 (0.4941...0.4945)
Extl. dia. mm (in) 12.733...12.744 (0.5013...0.5017)
Intl. dia. mm (in) 5.0...5.012 (0.1969...0.1973)
mm (in) 0.020...0.046 (0.0008...0.0018)
mm (in) 0.15 (0.006)
mm (in) 0.030...0.056 (0.0012...0.0022)
mm (in) 0.17 (0.007)
mm (in) 41.1 (1.62)
mm (in) 39.0 (1.54)
mm (in) 16.016...16.027 (0.6306...0.6310)
mm (in) 15.973...15.984 (0.6289...0.6293)
mm (in) 0.032...0.054 (0.0016...0.0021)
mm (in) 0.1 (0.004)
mm (in) 0.05 (0.002)
mm (in) 0.40 (0.016)
mm (in) 8.23 (valve clearance = 0)
mm (in) 8.23 (valve clearance = 0)
mm (in) 21.02...21.04 (0.8276...0.8284)
mm (in) 20.97...21.00 (0.826...0.827)
mm (in) 0.02...0.07 (0.0008...0.0028)
mm (in) 0.15 (0.006)
mm (in) 15.92...15.95 (0.6268...0.6280)
mm (in) 16.0...16.05 (0.630...0.632)
mm (in) 0.08...0.13 (0.0031...0.0051)
mm (in) 0.25 (0.010)
R 850 C R 1200 C
256°/256°
106°/109°
Marking in
position 2
11.7