BMW K 1200 LT 1999 Repair Manual page 98

Assembling pistons and conrods
•
Note weight tolerances when replacing conrods:
use only conrods of the same weight class.
Weight tolerance ............................. ± 4 g (0.14 oz.)
•
Weigh the conrods to determine the weight
class.
Weight classes
Class Weight in g (oz.)
0 413 ... 416.9 (14.578...14.716)
1 417 ... 420.9 (14.720...14.857)
2 421 ... 424.9 (14.861...14.998)
3 425 ... 428.9 (15.002...15.140)
4 429 ... 432.9 (15.143...15.281)
5 433 ... 436.9 (15.285...15.422)
6 437 ... 440.9 (15.426...15.563)
7 441 ... 444.9 (15.567...15.704)
•
Applying light pressure, push the piston pin
through the small-end bushing.
L
Note:
The oil bore in the small-end bore is at the top in the
installed position. The arrow on the piston crown
must point in the forward direction of travel.
•
Install only pistons of the same weight group.
•
Check the marks on the piston crowns (arrow) to
determine the weight class.
Weight classes for pistons
Weight of piston 189 ...195
in g (oz.) (6.671...6.883)
Marking -
e
Caution:
Always use two new wire circlips per piston pin
when reassembling.
•
Assemble piston and conrod.
KL110310
195 ... 210
(6.883...7.413)
+
11.27