VESPA LX 150 4T Euro 3 Service Station Manual page 109

Vespa LX 125 - 150 4T Euro 3
-Screw the nuts and lock them in a crossed sequence and in 2 or 3 stages to the specific torque.
Locking torques (N*m)
Locking torque 28 to 30
- Fit the two screws on the outside of the timing
chain side and tighten them to the specified torque.
N.B.
BEFORE INSTALLING THE HEAD, MAKE SURE THAT THE
LUBRICATION CHANNEL IS CLEAN USING A COM-
PRESSED AIR JET.
Locking torques (N*m)
Locking torque
11 to 13
- Fit the timing chain sprocket wheel on the crank-
shaft, with the chamfer facing the insertion side.
- Loop the timing chain around the sprocket on the
crankshaft.
- Fit the tensioner pad by the cylinder head.
- Fit the spacer and the screw fastener.
- Fit the pin, the exhaust rocking lever, the spring
washer and the intake rocking lever.
- Lubricate the 2 rocking levers through the holes
at the top.
- Lubricate the 2 bearings and insert the camshaft
in the cylinder head with the cams opposing the
rocking levers.
- Insert the retention plate and tighten the two
screws shown in the figure to the prescribed tor-
que.
Locking torques (N*m)
Locking torque
4 to 6
Engine
ENG - 109