Shimming The Shafts; Shimming The Crankshaft - Ducati SCRAMBLER 800 Workshop Manual

Shimming the shafts

Before assembling the crankcase halves, it is necessary to calculate the shim that determines the end float
of the crankshaft and of the gearbox shafts. Calculate the shimming following the procedures described
below.

Shimming the crankshaft

After having installed the new main bearings proceed as follows to determine the total "SA" height of the
shimming:
Measure value "LA" between the bearing supporting surfaces on the crankshaft;
Measure "LA1" and "LA2" corresponding to the distance from the mating surface between the crankcase
halves to the mating surface of the bearing inner ring;
Add a pre-load of 0.30 mm to allow the axial-type bearings of the crankshaft to correctly settle in their
seat.
The result will be: SA=LA-LA1–LA2–0.30.
The obtained result is the shimming value.