Ducati Diavel
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Ducati Diavel Service Manual: 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 thickness proceed as follows.

Shimming the crankshaft

Shimming the crankshaft


Shimming the crankshaft


Add 0.30 Mm preload for crankshaft axial bearings to bed in correctly into their seats (inner rings seated inside outer ring).

Thus, we obtain: 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.

Shimming the crankshaft


Shimming the crankshaft


In addition to the above procedure, the following is a practical shimming method, providing a guide on how to calculate the crankshaft shim thickness accurately.

Install a shim of minimum thickness (1.90 Mm) on each side of the crankshaft to prevent contact between the crankshaft web and the crankcase.

Install the crankshaft and assemble the two crankcase halves.

Fit four m8 screws in the seats indicated in figure and tighten them to a torque of 19 nm (min. 17 Nm - max. 21 Nm) (sect. 3 - 3, Engine torque settings).

Shimming the crankshaft


Place a dial gauge (c) with magnetic base on a support plate fixed to crankcase.

Bring the stylus into contact with the end of the crankshaft and set the dial gauge to zero in this position.

Shimming the crankshaft


Place a lever (d) between crankcase and crank web of the crankshaft pushing towards dial gauge.

Note on the dial gauge the total clearance and add a preload of (0.30 Mm) plus the thickness of the shims used (1.90X2=3.8 Mm).

Divide the resulting value by two to obtain the thickness of the shim packs to be installed at either end of the crankshaft.

Note

After assembling the crankcase halves, the crankshaft should turn with some interference in the new bearings.

Shimming the crankshaft


Shimming the gearbox shafts

The following thickness spacers are supplied as spare parts.


Shimming the gearbox selector drum

The following thickness spacers are supplied as spare parts.


Reassembly of the crankcase halves
The crankcase halves must be in good condition and perfectly clean. The mating surfaces must be perfectly flat and free from burrs. Overhauling the alternator-side crankcase half The following pa ...

Reassembly of the crankcase halves
If removed, apply threadlocker on the screw (36), insert it with the washer (37) on the crankcase half and tighten it to The torque of 8 nm (min. 7 Nm - max. 9 Nm) (sect. 3 - 3, Engine torque sett ...

Other materials:

Final drive
Circlip Nut Washer Nut Rear sprocket flange Cush drive bush Inner ring Chain Spacer Chain cover Screw Nut Lock washer Front sprocket Spacer O-ring Rear sprocket Spare parts catalogue Diavel abs gearbox Diavel abs rear wheel axle Diavel carbon abs gearbo ...

Total distance covered indicator: "odometer"
This function shows the total distance covered by the vehicle (in km or miles depending on the specific application). At key-on the system automatically enters this function. The odometer reading is stored permanently and cannot be reset. If the distance travelled exceeds 199999 km (or 19 ...

Flywheel - alternator
Screw Alternator stator Plug Sealing ring O-ring Cover Screw Aluminium gasket Screw Bracket Locating bush Screw generator cover Flange Flanged nut Plane washer Flywheel Washer Inner ring Needle roller bearing Electric starter driven gear Starter clutc ...

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