142
Front Section Disassembly
4
Front Section 2nd Ed. 02/07 FSO-2405
FSO-2405/79
FSO-2405/75
4
FSO-2405/78
1
2
3
Synchronizer Assemblies
4. Place the assembly on the bench with the
synchronizer ring facing down.
5. With the hands, install the synchronizer sleeve
on the synchronizer hub by forcing the sleeve
downwards.
Installation
WARNING! Before installing
synchronizer assemblies on shafts is
very important to be acquainted with
their design features and be able to
identify themselves as well.
1st/2nd and 3rd/4th Speed Synchronizer
1. They look exactly alike, having as the only
difference an anti-escape relief existing on the
3rd/4th speed synchronizer hub splines, not
present on the 1st/2nd synchronizer.
WARNING! Identify the anti-escape relief
on the 3rd/4th speed synchronizer hub
in order to prevent from swapping when
installing. This misassembling can cause
3rd speed to slip out of gear.
2. Install the 3rd/4th speed synchronizer
assembly with the hub anti-escape relief side
facing the 3rd speed gear.
3. The synchronizer hub most prominent side
should face the sleeve chamfer side.
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