Ducati Diavel
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Ducati Diavel Service Manual: Checking the engine timing

Checking the engine timing


Set the engine to the configuration described for the "checking and adjusting the valve clearances", previously indicated.

Install tool 88765.1188 (G) in the spark plug bore to determine the piston tdc, the gauges (h) on the tool 88765.1518 And the timing check tool (degree wheel (l) 88713.0123 With graduated disk).

Checking the engine timing


Checking the engine timing


Set the opening valve clearance to zero when the camshaft is in its rest position by fitting a feeler gauge between the upper rocker arm and the opening shim.

Check that in this condition the camshaft can rotate. If it moves stiffly, use a thinner feeler gauge.

Checking the engine timing


In this condition, with the piston of the horizontal cylinder at tdc with the valves fully closed as confirmed by the reading on gauge (g), set the gauges (h) to zero.

Set the tension value of the belts as described at sect. 6 - 11, Checking and adjusting timing belt tension.

Turn the degree wheel (l) counter clockwise until the gauge dial (h), on the exhaust side, shows a lift of 1 mm. Check that the value of the angular displacement read on the degree wheel (l) is as specified in (sect. 3 - 1.1, Timing system/valves).

Continue to rotate in the same direction until you obtain a lift of 1 mm on the intake side. Check the angular value on the degree wheel.

Continue to rotate until you obtain an intake valve lift of 1 mm on the gauge (h), during closure of the valve for the compression stroke. Check the angular value with the prescribed one (sect. 3 - 1.1, Timing system/valves).

Continue to rotate the degree wheel (l) counter clockwise until you obtain a lift of 1 mm of the exhaust valve, when opening or closing the valve.

Check the angular displacement value against the specified value.

Repeat the procedure for the vertical cylinder.

A tolerance of +/- 3 is allowed in the values detected with the described procedure regarding the prescribed ones (sect. 3 - 1.1, Timing system/valves).

Checking the engine timing


Checking the engine timing


Remove the installed tools to check timing. Then tension the belts to the value of the prescribed operation, as described at sect. 6 - 11, Measuring the timing belt tension values.

In case of values different from the described ones (sect. 3 - 1.1, Timing system/valves), loosen the fixing screws (m) of the timing pulley and correct the value detected by turning the ring nut of the timing shaft with the supplied wrench with code 88713.1806.

Lock the three retaining screws (m) of the timing pulley to the specified torque of 10 nm (min. 9 Nm - max. 11 Nm) (sect. 3 - 3, Engine torque settings) and mark the new position of the components.

Checking the engine timing


Checking the engine timing


Refit the components removed in the procedure.

Checking the engine timingChecking the engine timing


Checking valve lift
Set the engine to the configuration described for the "checking and adjusting the valve clearances", previously indicated. Position the tool 88765.1518 On the cylinder head: the part marked "a" s ...

Timing system
Central external cover Air filter Horizontal cylinder timing belt cover Screw Filter support Screw Washer Nut Tensioner pulley assembly Circlip Camshaft pulley Tensioner p ...

Other materials:

Noise and exhaust emission control system information
Source of emissions The combustion process produces carbon monoxide and hydrocarbons. Control of hydrocarbons is very important because under certain conditions, they react to form photochemical smog when subjected to sunlight. Carbon monoxide does not react in the same way, but is toxic. Duca ...

Menu 2 on/off function
This function turns off and back on the menu 2. If menu 2 is disabled, the functions for average fuel consumption (cons.Avg), instantaneous fuel consumption (cons.), Average speed (speed avg), trip time (trip time) and air temperature (air) will no longer be displayed in the "main screen". ...

Removal of the clutch-side crankcase cover
Unscrew the screws (2), (3) and (5) securing the clutch-side crankcase cover (1). Tap around the edge of the cover with a plastic mallet to detach it from the crankcase half. Remove the clutch cover (1) paying attention to the centring bushing (12). Check the condition of the cent ...

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