Ducati Diavel
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Ducati Diavel Service Manual: Refitting the primary drive gears and checking backlash

Ducati Diavel Service Manual / Engine / Clutch assembly / Primary drive gears / Refitting the primary drive gears and checking backlash

Fully degrease the crankshaft splined end and the corresponding spline on the primary drive gear.

Position the spacer (c) onto the crankshaft.

Refitting the primary drive gears and checking backlash


Fit the driving gear (b) onto the crankshaft with the oil pump drive sprocket facing the crankcase.

Refitting the primary drive gears and checking backlash


Temporarily secure the gear with the washer (4) and nut (3).

Important

If fitting a new primary driving gear (b), check the backlash.

Refitting the primary drive gears and checking backlash


To check the clearance, temporarily fit the clutch bell (1) complete with the primary driven gear (a) on the gearbox primary shaft. Fix a dial gauge to the engine crankcase, positioning the stylus against a gear tooth.

Turn the driven gear (a) to mesh the teeth and check that clearance ranges between 0.05 And 0.07 Mm.

Repeat the check at 16 different points of the driven gear.

If the measured values are outside the permissible tolerance limits, try changing the position of driven gear (a) on the primary shaft, leaving the driving gear (b) on the crankshaft. If still outside tolerance values, renew the whole primary drive gear pair.

Refitting the primary drive gears and checking backlash


After checking backlash, fit the bush 88713.3406 On a torque wrench, lock the pinion (b) with the holding tool 88713.3417.

Position the washer (4) and the ring nut (3). Use the special tool 88713.3406 To tighten the ring nut (3) to a torque of 190 nm (min. 171 Nm - max. 209 Nm) (sect. 3 - 3, Engine torque settings).

Refitting the primary drive gears and checking backlash


Refit the oil pump (d) and check the clearance between the oil pump gear and primary drive gear on the crankshaft (sect. 9 - 2.1, Refitting the oil pump).

Refitting the primary drive gears and checking backlash


Thoroughly degrease the mating surfaces of the clutch bell (1).

Fit the spacer (2) onto the primary shaft. Fit the clutch housing (1) along with the driven gear (a).

Refitting the primary drive gears and checking backlash


Refitting the primary drive gears and checking backlash


Refitting the primary drive gears and checking backlash


Removal of the primary drive gear
Withdraw the clutch housing (1) complete with driven gear of the primary pair (a). Remove the inner spacer (2). Remove the oil pump (d) (sect. 9 - 2.1, Removal of the oil pump). L ...

Gearbox assembly
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Other materials:

Engine
Twin cylinder, four-stroke, 90 "l" type, longitudinal, with deep sump die-cast crankcase. Bore, mm: 106 Stroke, mm: 67.9 Total displacement, cu. Cm: 1198 Compression ratio: 11.5В±0.5:1 Max power at crankshaft (95/1/ec), kw/hp: 119 kw/162 hp at 9,500 rpm Max torque at crankshaf ...

Disassembly of the gearbox shafts
Place the shaft in a vice in such a way as to facilitate the disassembly operations. Important Take care not to invert the positions of the shims on reassembly: this would potentially lead to jamming when using the gear selector control, making it necessary to reopen the engine crankcase. D ...

Headlight aim
The motorcycle must be perfectly upright with the tires inflated to the correct pressure and with a rider seated, perfectly perpendicular to the longitudinal axis. Position the motorcycle 10 metres from a wall or a screen. On the wall or surface, draw a horizontal line at the same height fr ...

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