Gilera SATURNO BIALBERO 350, Workshop Manual

Page: 54 / 140

CYLINDER HEAD VALVETRAIN
COMPONENTS 7 - 4
REASSEMBLY
Assemble in reverse order of disassembly. Pay close attention to the following
points:
Every component must be installed in the same position before it was
removed. This is most important for rocker arms, valves, spring retainer and
collets.
Do not mix the two camshaft pulleys: the one marked with an “S” is for
exhaust: the one marked with an “A” is for intake.
Oil all moving components before mounting.
There is no gasket between the cam cover and the head; use Loctite 574.
Always use new oil seals for both valve guides and camshafts (for the latter,
use special tool 19.1.20502, for the former use special tool 19.1.20503). Oil
the lip seal before mounting.
Install the head gasket; make sure the correct side is facing up. All contact
surfaces must be clean and in good condition (fig. 19).
Between head and cylinder there are four rubber anti vibration devises that are
Installed after positioning the head gasket.
The head bolts are tightened in an even and progressive fashion, using a
crossed diagonal sequence and to the prescribed torque.
TORQUE WRENCH SETTINGS
Camshaft pulley mounting screws * 30 Nm
Head mounting bolts 32 ÷ 35 Nm
Cam cover mounting screws 7 ÷ 9 Nm
* Always oil threads and washers
7 - 4