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---------------------------- ---- - ----- - -------'-- ;__
Opn. No.
(,ee
fig. 71)
-- Main bearing to crankshaft.
2
- Inspection of crankshaft.
3
- Reassembly of crankshaft and fitting
4-5
- Outer oil seal for main bearing flywheel
6
NOTE - For correctly reassembling the main bearings, checking the crankshaft and fitting crankcase halves, see pages
179 - 180 - 181 - 182 for the necessary instructions.
DESCRIPTION
Heat the bearing in an oil both at 100
and interpose the wed
e « E » between
g
the crank webs to avoid distortion.
Internal track of roller bearing; cam on
crankshaft ( flywheel side).
Heat as for opn. 1 ).
N. B. - For the Vespa G. S. Mod. VSB l
the crankshaft is checked without the
main bearings mounted.
crankcase halves.
side(**).
__
REASSEMBLY
Vehicles to which the
illustrated operation refers
All except Vespa
°
C
G. S. Mod. VSB l
Vespa
G. S./VSB l
All
I
/ Vespa G. S. Mod.
VSB 1.
All except Vespa
G. S. Mod. VSB l.
I
All except le G. S.
Vespa G. S. Mod.
VS l - VS 2 - VS 3 -
\ VS 4 - VS 5
Vespa G. S.
Mod.
VSB 1.
_______________
..;..;......,.....,..._
Fig. tool
Tool Drg. No.
Tube with
I. D.
of 26 mm.
Base with 26 mm
l
dia. through bore
T. 0025127
For bearing : tu
be, I.
D. 26 mm
For cam :
tube
I. D.
20
mm
( o) For checking the crank
Base with 35 mm
shaft of the Vespa G. S.
dia. through bore
mount the spacer T .20122/C
T.0025127
on the web shafts.
T. 19559/C
( * )
Use the tool with the
(0)
components 7 • 8 • 9.
( * * ) Before assy. fill the
\ G
T.0018119
roller bearing chamber with
5 to 7 cc. of Esso Multi
( * )
1 ·
Purpose Grease 2 ( or Shell
T.0027346
(
Alvania 3; Mobilgrease Spe•
H
0017831
cia I ) after having previously
cleaned out
grease with gasoline.
L
0017808
M
0020105
N
T. 0027338
__ _
-"'
NOTES
f
t h e
residual
177
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