BMW K 1100 LT/RS - Manual (Page 40)

11.6
Valves
Valve clearances with engine cold
(max. 35 °C)
Inlet valve mm (in) 0.15…0.20 (0.0059…0.0079)
Exhaust valve mm (in) 0.25…0.30 (0.0098…0.0118)
Valve timing at 5/100 mm (0.002 in) preload and
3 mm (0.118 in) lift
Inlet opens 14° after TDC
Inlet closes 18° after BDC
Exhaust opens 18° before BDC
Exhaust closes 14° before TDC
Valve length
Inlet mm (in) 115.1 (4.531)
Exhaust mm (in) 113.7 (4.476)
Valve head dia.
Inlet mm (in) 26.45 (1.041)
Exhaust mm (in) 22.95 (0.886)
Stem dia.
Inlet mm (in) 5.96…5.975 (0.2346…0.2352)
Wear limit mm (in) 5.94 (0.2339)
Exhaust mm (in) 5.945…5.96 (0.2341…0.2346)
Wear limit mm (in) 5.925 (0.2333)
Valve head edge thickness
Inlet mm (in) 1.04 (0.041)
Exhaust mm (in) 1.09 (0.043)
Max. valve head runout
Inlet, exhaust mm (in) 0.02 (0.0008)
Valve seat angle
Inlet, exhaust 44° 30’…20’
Valve seat width
Inlet mm (in) 1.1 (0.043)
± 0.15 (0.006)
Wear limit mm (in) 2.5 (0.098)
Exhaust mm (in) 1.3 (0.051) ± 0.15 (0.006)
Wear limit mm (in) 3.0 (0.118)
Length of valve guide
Inlet mm (in) 45 (1.772)
Exhaust mm (in) 57.5 (2.264)
Technical data K 1100 LT K 1100 RS