BMW K 1100 LT/RS - Manual (Page 42)

11.8
Crankshaft
Main bearing and crankpin markings
no colour spot Grinding stage 0
with colour spot Grinding stage 1
Width of guide bearing mm (in) 23.020…23.053 (0.9063…0.9076)
Axial play mm (in) 0.080…0.183 (0.0031…0.0072)
Wear limit mm (in) 0.250 (0.010)
Main bearing dia.
Grinding stage 0 mm (in) 44.976…45.000 (1.7707…1.7716)
Grinding stage 1 mm (in) 44.726…44.750 (1.7609…1.7618)
Main bearing radial play mm (in) 0.020…0.056 (0.0008…0.0022)
Wear limit mm (in) 0.130 (0.0051)
Main bearing bore dia. mm (in) 49.00…49.14 (1.929…1.935)
Crankpin dia. Grinding stage 0 mm (in) 37.976…38.000 (1.4951…1.4961)
Grinding stage 1 mm (in) 37.726…37.750 (1.4853…1.4862)
Big end bearing width mm (in) 21.810…22.065 (0.8587…0.8687)
Connecting rod
Small end bore dia. mm (in) 41.000…41.016 (1.6142…1.6148)
Wide big end bearing mm (in) 21.973…22.025 (0.8651…0.8671)
Big end bearing endplay mm (in) 0.130…0.312 (0.0051…0.0123)
Wear limit mm (in) 0.400 (0.0157)
Piston pin bore dia. mm (in) 20.000…20.021 (0.7874…0.7882)
Piston pin bore dia. with
bushing
mm (in) 18.000…18.021 (0.7087…0.7095)
Distance between centers
up to 1992 model year mm (in) 125.0 (4.9213)
±0.1 (0.0039)
from 1993 model year on mm (in) 131.0 (5.1575) ±0.1 (0.0039)
Permissible weight difference g ± 4
Cylinders
Bore A mm (in) 70.500 (2.7756) ±0.005 (0.0002)
B mm (in) 70.510 (2.7760)
±0.005 (0.0002)
Wear limit mm (in) + 0.05 (0.002)
Pistons
Weight group identification stamped + or -
Piston dia. Make: KS
A mm (in) 70.473 (2.7745) ±0.007 (0.0003)
B mm (in) 70.483 (2.7749)
±0.007 (0.0003)
Direction of installation Arrow on piston crown points forward
Installed clearance mm (in) 0.015…0.039 (0.0006…0.0015)
Wear limit mm (in) 0.130 (0.0051)
Technical data K 1100 LT K 1100 RS