APRILIA RSV mille 956X Service And Repair Manual page 181

ENGINE
Insert the two locating dowels (9) in the cylinder.
a
CAUTION
Use a new head gasket.
Fit the head gasket (10) in place.
Place the preassembled head in the cylinder and tight-
en it on with the four shouldered T.E. screws (11).
– Non-painted cylinder version
Driving torque of screws (11):
28-30 Nm (2.8-3.0 kgm)
– Painted cylinder version
Driving torque of screws (11):
25-28 Nm (2.5-2.8 kgm)
Apply a coat of LOCTITE
the gasket surface of the cylinder base gasket in the
area of the line separating the two sections of the cas-
ing.
Apply the cylinder base gasket on the casing.
Oil the piston and the respective piston rings.
Turn the piston rings so that the meeting ends of the
three rings are staggered by approx. 120°.
NOTE
Have the appropriate special tool
hand (cod. 8140186 - piston ring compression tool).
Lower the ring compressor (12) or piston ring pliers
over the piston to preload the piston rings.
Place the chain tightener shoe (13) in the chain com-
partment of the cylinder (14) and push the cylinder over
the piston so that the ring compressor is pushed down.
Remove the ring compressor (12).
Insert the timing chain (15) through the cylinders chain
compartment.
NOTE
The timing chain can be guided inside using an
O-ring or similar device to aid assembly.
Place the cylinder (14) on the engine casing, pushing it
in all the way.
Oil the thread of the stud bolts (2) and the contact sur-
faces.
NOTE
Screw on the M10 T.E. nuts (16) and M6 T.C.E.I.
screws (17) evenly and gradually, working in a crisscross
pattern.
Secure the cylinder together with the head with the four
M10 T.E. nuts (16) and two M6 T.C.E.I. screws (17).
Non-painted head version:
– four M10 T.E. nuts (16), driving torque 58 Nm (5.8
kgm);
– two M6 T.C.E.I. screws (17), driving torque 12 Nm
(1.2 kgm).
Painted head version:
– two M10 T.E. nuts (16), external, driving torque 50-
55 Nm (5.0-5.5 kgm);
– two M10 T.E. nuts (16), chain compartment side,
driving torque 58 Nm (5.8 kgm);
– two M6 T.C.E.I. screws (17), driving torque 12 Nm
(1.2 kgm).
3 - 98
®
574 on the casing around
&
(12) to
RSV mille