Ducati SUPERBIKE 848 MY 2008 Manual page 512

Cylinder/piston assemblies
To remove the vertical barrel-piston assembly, bring the vertical piston to TDC and proceed as for removal of the
horizontal cylinder barrel.
Important
Mark the pistons to show from which cylinder they were removed:
V= Vertical - H= Horizontal
Overhaul of the cylinder barrel/piston components
Overhauling the cylinder
Check that the walls of the cylinder bore are perfectly smooth. Measure the cylinder bore diameter at 50 mm from the
top face and determine the size class to which it belongs in accordance with the values specified in Sect. C 1.1,
Cylinder/Piston. Measure the bore diameter again at three different heights A, B and C and at positions offset by 90°;
check that the measurements of taper and ovality in the bore fall within the range specified in Sect. C 1.1,
Piston.
In the event of damage or excessive wear the barrel must be renewed as it has a silicon carbide coating (which
provides the cylinder walls with excellent anti-friction and anti-wear properties) and therefore cannot be rebored.
The cylinder barrels are marked with letters (stamped between two oil return ways) indicating their size class.
Always match cylinders with pistons from the same size class.
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