Refitting The Cylinder/Piston Assembly - Ducati Diavel Workshop Manual

Cylinder/piston assemblies
Checking the piston ring/cylinder clearance
Insert the ring in the cylinder bore so that it is positioned 50 mm from the top face of the cylinder barrel; make sure that
the ring is positioned perfectly square to the cylinder walls by checking with a gauge at several points around the ring that
the top surface of the ring is exactly 50 mm from the top face of the cylinder barrel.
Measure the piston ring gap (A):
Top compression ring
Second compression ring
Oil control ring

Refitting the cylinder/piston assembly

If new units are used, it is necessary to couple the cylinders and pistons of the same selection (see paragraph
Distance (A) mm Wear limit
0.2 to 0.4 0.8
0.3 to 0.5 0.8
0.2 to 0.7 1.0
"Overhaul