VESPA LX 150 4T Euro 3 Service Station Manual page 126

Engine
Measure the distance between the outer rotor and
the pump body; see figure.
Characteristic
Admissible limit clearance:
0.20 mm
Check the axial clearance of the rotors with a trued
bar as reference, as shown in the figure.
Characteristic
Limit values admitted:
0.09 mm
Refitting
- Check there are no signs of wear on the oil pump
shaft or body.
- Check there are no signs of scoring or wear on
the oil pump cover.
- If you detect non-conforming measurements or
scoring, replace the faulty parts or the assembly.
- Fit the pulley to the pump, the central screw to
the specified torque and the cup washer.
-Fit the oil pump cover, by tightening the two
screws to the prescribed torque.
N.B.
FIT THE CUP WASHER SO THAT ITS OUTER (CURVED)
RIM TOUCHES THE PULLEY.
Locking torques (N*m)
Central screw
12 to 14 Nm
Nm
ENG - 126
Cover screws
0.7 to 0.9
Vespa LX 125 - 150 4T Euro 3