Ducati Diavel
Free Service and Repair manuals

Ducati Diavel Service Manual: Overhaul of the crankcase halves

Carefully examine the engine crankcase halves.

Check that the surfaces of the crankcase halves are perfectly flat using a reference surface.

Check that the bearings (1) and (18), and the bushings (2) and (17) are in optimum conditions. Note that the main bearings must always be changed in pairs (refer to the procedure below in "main bearings").

Overhaul of the crankcase halves


Overhaul of the crankcase halves


Note

When overhauling an engine it is good practice to renew all the crankcase half bearings.

After having renewed the gearbox shaft bearings (28) and (9), secure them in the crankcase half with the spacers (21) and the retaining plate (10).

Overhaul of the crankcase halves


Overhaul of the crankcase halves


At each overhaul it is recommended to renew also the seal (8) on the outside of bearing (9).

Overhaul of the crankcase halves


Renew the bearings (7) and (23) on the ends of the gearbox shafts and timing belt driveshaft bearings (4) and (15).

Overhaul of the crankcase halves


Overhaul of the crankcase halves


Take care not to lose the shim (6) interposed between the bearing (7) on the end of the gearbox primary shaft and the chain side crankcase half

Overhaul of the crankcase halves


The seal (14) on the external side of the roller bearing (15) must be renewed at each engine overhaul.

Overhaul of the crankcase halves


Check that the oilways are free of restrictions or clogging. Check the condition of locating bushes (22). If apparently distorted or loose in their seats, change them using proper tools. When the locating bushes (22) are hard to remove from casing, use a left-hand tap to force bushes out.

Important

The bushes (22) must always be renewed when they have been removed using the above procedure.

Overhaul of the crankcase halves


Remove the bearing (23), the circlip (5) and the roller bearing (4).

Overhaul of the crankcase halves


Overhaul of the crankcase halves


Separation of the crankcase halves
Use two screwdrivers to remove the circlip (29) from the timing belt driveshaft shaft (30) on the clutch-side crankcase half. Note Take care to avoid scoring the surface of the shaft while re ...

Main bearings
The main bearings have are of the angular contact type with offset inner races so that the balls transmit loads from one groove to the other along straight lines at an angle to the axis of the bear ...

Other materials:

Refitting the lubrication system
Note Before fitting the pipes (7), it is recommended to check the presence of the o-rings (e). Lubricate them by using engine oil. If the nipples (5) have been removed from the radiator insert a washer (6) on each nipple (5) and apply specific threadlocker on threads on the radiator side ...

Adjusting the throttle cable
The throttle grip in all steering positions must have free play, measured on the periphery of the flange of the grip, of 1.5 - 2.0 Mm. If necessary, adjust using the adjusters (1) and (2) located on the steering tube on the right side of the motorcycle. Adjuster (1) adjusts the throttle o ...

Removal of the gearchange control
Loosen and remove the pivot screw (4) securing the gearchange pedal (1) and recover the washer (9) and the o-ring  Seals (5). Loosen and remove the screw (7) securing the gearchange lever (8) to the gear selector shaft. Withdraw the lever (8) complete with the gearchange control assem ...

2020 | www.dudiavel.com |