Ducati Monster 696 2009, Manual

Page: 569 / 696

A
B
C
D
E
F
G
H
L
M
N
P
section
N 9.2
187 Monster 696/696+ - M.Y. 2009 - edition 00
Engine
Shimming the shafts
Before assembling the crankcase halves, calculate the shims required to obtain the correct end float of the crankshaft and
gearbox shafts.
To determine the correct shim thicknesses proceed as follows.
Shimming the crankshaft
After fitting the new main bearings, proceed as follows to determine the total shim thickness “SA”:
measure the distance “LA” between the bearing contact surfaces on the crankshaft;
measure the depths “LA1” and “LA2” corresponding to the distance between contact surface of the crankcase half and
the contact surface of the inner race of the bearings;
add a pre-load of
0.30 mm to prevent excessive crankshaft end float when the crankcase halves are at their normal
operating temperature.
This gives:
SA=LA1+LA2+0.30-LA.
To calculate the thickness of each shim note that:
SA=SA1+SA2
where “SA1” and “SA2” represent the shims for the clutch-side crankcase half 1 and the alternator-side crankcase half 2.
Considering the alignment of the shaft, this gives:
SA1=LA1+0.15-LA/2;
and finally, the second shim thickness: SA2=SA-SA1.
LA
LA2
SA2 SA1
LA1
Crankca
se
ha
lf
contact
face
LA1