Ducati Diavel
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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:

Introduction to the engine control system
The engine control system used on the diavel consists of the following elements: Ride-by-wire system (motorised throttle valves with electric actuator, throttle grip position sensor and throttle valve position sensor) One injector per cylinder installed downstream of throttle valve On ...

Ground connection locations
The negative cable, which is normally connected to the negative pole of the battery, is fastened to the crankcase. From here, the cable branches off and splits up within the electrical system to carry the ground connection to the different elements in the system. The image shows the ground ...

Abs system operating information
The response of the system is based on the analysis of the speed signals for front and rear wheels; the system is automatically deactivated if either of these signals is missing. Note In the event of the abs control unit detecting a fault in the abs electronic management system, it activates ...

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