Front Section
Front Section
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WARNING! When repairing synchronizer assemblies,
do not replace a single part only. Always replace
the whole assembly. If would be necessary to
replace one synchronizer ring, always replace the
transmission synchronizer ring set.
Description
Synchronizers and synchronizer rings together are
responsible for engaging the transmission gears. To
properly perform their function, it is important to be
correctly assembled and installed in the transmission.
Therefore, we recommend you to read carefully the
instructions below.
This transmission model has three synchronizer
assembly types, as described below.
WARNING! Before installing synchronizer assemblies
on shafts, is very important to be acquainted with
their design features and be able to identify them as
well.
1st/2nd Speed Synchronizer
The 1st/2nd speed synchronizer has keys assembled
with balls and does not use springs.
Synchronizer Assemblies
Both the 1st and the 2nd speed synchronizer rings
are composed of 3 (three) rings: one inner ring, one
middle and one outer ring. The outer ring has the
special EFM II coating.
Note:
The EFM II is a special coating used in
some synchronizer rings to increase its
lifetime.
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340
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Synchronizer hub
Synchronizer sleeve
Key with ball (3x)
Inner synchronizer ring (2x)
Outer synchronizer ring
with EFM II coating (2x)
Middle synchronizer ring
(2x)
Disassembly
1. With the hands, remove the synchronizer sleeve
from the hub.
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