REST THE HALF-PULLEY ON A WOOD SURFACE TO
AVOID DAMAGING THE THREADED RINGLET OF THE
DRIVEN PULLEY UPON REMOVING IT.
Specific tooling
020375Y 28 x 30 mm adaptor
020376Y Adaptor handle
020439Y 17-mm guide
Inspecting the driven fixed half-pulley
- Measure the external diameter of the pulley bush-
ing.
Characteristic
Minimum diameter permitted
Ø 40.96 mm
Standard diameter
Ø 40.965 mm
Inspecting the driven sliding half-pulley
- Remove the 2 inner sealing rings and the two O-
rings.
- Measure the inside diameter of the mobile half-
pulley bushing.
Characteristic
Minimum admissible diameter:
Ø 41.08 mm
Standard diameter
Ø 41.035 mm
Vespa LX 125 - 150 i.e. Engine
ENG - 97
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