Gilera 633499 Workshop Manual page 74

Engine
Inspecting the driven fixed half-pulley
- Check that there are no signs of wear on the work
surface of the belt. If there are, replace the half-
pulley..
- Make sure the bearings do not show signs of un-
usual wear.
- Measure the external diameter of the pulley bush-
ing.
Characteristic
Stationary driven half-pulley/Standard diame-
ter
Ø 33.965 to 33.985 mm
Stationary driven half-pulley / Minimum diam-
eter admitted after use
Ø 33.96 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
Mobile driven half-pulley/ Maximum diameter
allowed
Ø 34.08 mm
- Check the belt contact surfaces.
- Insert the new oil seal and O-rings on the mobile
half-pulley.
- Fitting the half-pulley on the bushing.
Recommended products
AGIP GREASE SM 2 Grease for the tone wheel
revolving ring
Soap-based lithium grease containing NLGI 2 Mo-
lybdenum disulphide; ISO-L-XBCHB2, DIN
KF2K-20
- Make sure the pins and collar are not worn, reassemble the pins and collar.
ENG - 6
Runner Purejet