Ducati 1098 2007 Manuel .pdf



Nom original: Ducati_1098_2007_Manuel.pdfTitre: Ducati_1098_2007_Manual_de_reparatie_www.manualedereparatie.info.pdfAuteur: Clair Dominique

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Taille du document: 528 Ko (9 pages).
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1

section

Engine

N 4.1

4.1 - Cylinder head assemblies: checks and adjustments

A

B
2
4
3

C
3

D
1
1

E

F

5
1
2
3
4
5

G
5

Closing shim
Intake side camshaft
Opening shim
Exhaust side camshaft
Valve

H

Important
Bold reference numbers in this section identify parts not shown in the figures alongside the text. Refer to the exploded view
diagram.

L

M

N

P
1098/1098S - M.Y. 2007 - edition 00

41

section

Engine

N 4.1

Checking and adjusting the valve clearances

A

B

Operation

Section reference

Remove the side fairings

E2

Remove the radiator

N 3.2

Remove the fuel tank/seat cowling
assembly

E3

Remove the airbox

L6

Remove the timing belts

N 4.2

Remove the rocker cover

N 4.4

C
Notes
For clarity, the figures show the engine removed from the frame.
Checking the opening clearance

D

E

Move the piston of the cylinder being checked to TDC of the power stroke: in this condition all the valves are closed and the
camshafts are in their rest position and thus free to rotate.
Using a feeler gauge, check the clearance between the opening rocker arm (A) and the lower edge of the camshaft cam (B).
The clearance must be within the specified limits (Sect. C 1.1).
If it is not, remove the opening shim (3), as described in the paragraph “Removal of the valves” (Sect. N 4.5), and replace it with
a shim of adequate height to obtain the specified clearance.

Notes
Opening rocker arm shims measuring 2 to 3.45 are available as replacement parts: each shim is marked with its size.

F

B

G
A

H

L

M

N

P
42

1098/1098S - M.Y. 2007 - edition 00

section

N 4.1

Engine

Checking the closing clearance
Using a feeler gauge, check the clearance between the closing rocker arm shoe and the upper edge of the camshaft cam, taking
care not to compress the rocker arm return spring.
The clearance must be within the specified limits (Sect. C 1.1).
If it is not, remove the closing shim, as described in the paragraph “Valve disassembly” (Sect. N 4.5), and replace it with a shim
of suitable height to obtain the specified clearance.

A

B

Notes
Closing rocker arm shims measuring from 2.2 to 4.5 are available as replacement parts: each shim is marked with its size.
Check and adjust the clearances of all valves.
Refit the opening and closing shims as described in paragraph “Refitting rocker arms and valves” (Sect. N 4.5).

C

D

C

E

D

F
C

D

G

H

L

M

N

P
1098/1098S - M.Y. 2007 - edition 00

43

section

Engine

N 4.1
Checking valve lift

A

Put the engine in the condition described in “Checking and adjusting the valve clearances” above.
Install the dial gauge stand (E) 88765.1518 on the intake side camshaft bearing studs, and secure it with the knobs (F).

F

B
E

F

C
E
88765.1518

D

E

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.
Lock the dial gauge into the seat of the stand marked “A” and position the fork probe against the face of the closing shim.
Set the dial gauge to zero when the valve is fully closed.
Rotate the intake camshaft so as to allow the intake valves to lift fully.
Check that the reading on the dial gauge corresponds to the specified value (Sect. C 1.1).
Repeat the same procedure with the exhaust valves, moving the stand to the opposite studs and fitting the dial gauge into the
seat marked “S” on the stand (E).

E

F
A

G

S

88765.1518

H

L

M

N

P
44

1098/1098S - M.Y. 2007 - edition 00

section

Engine

N 4.1

Refit all parts by carrying out the operations described under “Checking and adjusting the valve clearances” above.
Refit the components removed in the procedure.
Operation

Section reference

Refit the timing belts

N 4.2

Refit the rocker cover

N 4.4

Refit the airbox

L6

A

B

Refit the fuel tank/seat cowling assembly E 3
Refit the radiator

N 3.2

Refit the side fairings

E2

C

D

E

F

G

H

L

M

N

P
1098/1098S - M.Y. 2007 - edition 00

45

section

Engine

N 4.1
Checking the engine timing

A

B

C

Operation

Section reference

Remove the side fairings

E2

Remove the radiator

N 3.2

Remove the fuel tank/seat cowling
assembly

E3

Remove the airbox

L6

Remove the timing belts

N 4.2

Remove the rocker cover

N 4.4

Remove the water pump cover

N 3.3

Put the engine in the condition described in “Checking and adjusting the valve clearances” above.
Install tool (G) 88765.1188 in the spark plug bore to determine piston's TDC, along with gauges (H) 88765.1518 and the
timing check tool (L) (timing degree wheel 88765.1523 with graduated disk).

D

E

G
88765.1188

F

H

H

88765.1518

G
88765.1523

H

L

L

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 the camshaft can rotate in this condition. If it is stiff, use a thinner feeler gauge.

M

N

P
46

1098/1098S - M.Y. 2007 - edition 00

section

N 4.1

Engine

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.
Refit the belts and tension them as described in Sect. N 4.2.
Turn the degree wheel (L) counterclockwise until the dial gauge (H) on the exhaust side reads a lift of 1 mm. Check that the
angular displacement reading in degrees on the degree wheel (L) is as specified.
Continue to rotate in the same direction until you obtain a 1 mm lift on the intake side. Check the angular value on the degree
wheel.
Continue turning the shaft until you reach total closure of the valve on the expansion stroke.
Now reverse the rotation (i.e. clockwise) of the degree wheel (L) until gauge (H) shows a 1 mm lift of the intake valve.
Check that the angular value is as specified.
Continue turning the degree wheel clockwise until the gauge shows a lift of the exhaust valve of
1 mm. Check the angular value against the specified value.
Repeat the procedure for the vertical cylinder.
Permissible tolerance for measured values is ±3° with respect to specified values.

A

B

C

D
G
88765.1188

H

H

E
88765.1518

F
88765.1523

G

L

H

L

M

N

P
1098/1098S - M.Y. 2007 - edition 00

47

section

Engine

N 4.1
A

Remove all tools installed for the timing check and tension the belts to their prescribed operating tension, as described in
Sect. D 5.
If the values obtained are outside the specified ranges (Sect. C 1.1), loosen the timing pulley bolts (M) and correct the value by
using the wrench supplied with service tool part no. 88713.1806 to turn the camshaft nut.
Then tighten the three timing pulley bolts (M) to the specified torque (Sect. C 3) and mark the new timing positions on the
relative components.

B
M

C
M

D

88713.1806

E

F
Refit the components removed in the procedure.

G

H

Operation

Section reference

Refit the water pump cover

N 3.3

Refit the timing belts

N 4.2

Refit the rocker cover

N 4.4

Refit the airbox

L6

Refit the fuel tank/seat cowling assembly E 3

L

Refit the radiator

N 3.2

Refit the side fairings

E2

M

N

P
48

1098/1098S - M.Y. 2007 - edition 00

1

section

Engine

N 4.2

4.2 - Cylinder head assemblies: timing

A

24

11
23
21

B
22

1

7

12

C

10
16

13

8

16
9 17
14 18

15

19
20 18

8

D

7
12
8 7

4

E

13

F

12

8
4
1
2
3
4
5
6
7
8
9
10
11
12

Vertical cylinder timing belt cover
Air filter
Horizontal cylinder timing belt cover
Bolt
Filter cover
Bolt
Washer
Nut
Tensioner pulley assembly
Circlip
Camshaft pulley
Tensioner pulley mounting stud

3

2

5

7

9

14

6

G
13
14
15
16
17
18
19
20
21
22
23
24

Idler pulley assembly
Timing belt
Nut
Key
Spacer
Camshaft pulley
Driveshaft pulley spacer
Spacer
Nut
Bolt
Washer
Spacer flange

H

L

Important
Bold reference numbers in this section identify parts not shown in the figures alongside the text. Refer to the exploded view
diagram.

M

N

P
1098/1098S - M.Y. 2007 - edition 00

49


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