Mitsubishi 1993 3000GT Technical Information Manual page 64

2-8
POWER-TRANSMISSION COMPONENTS -
DOUBLE-CONE SYNCHRONIZER
The double-cone synchronizer used for 1st speed and
2nd speed are made up, as shown in the figure above,
of the speed gear, clutch gear (welded to the speed
gear), inner synchronizer ring, synchronizer cone, outer
synchronizer ring, synchronizer hub, synchronizer
sleeve, synchronizer key, etc.
The inner synchronizer ring touches liner of the syn-
chronizer cone inner surface at the outer cone surface
and is coupled to the outer synchronizer ring by the
projections (3 locations) on the synchronizer hub. The
synchronizer cone touches the inner synchronizer ring
and outer synchronizer ring at the inner surface liner and
1st speed gear
Synchronizer cone
When the shift lever is moved toward 1st speed, the shift fork moves
the synchronizer sleeve to the left.
At this time, since the ball in the synchronizer key is pressed into the
groove of the synchronizer sleeve by the spring, the synchronizer
sleeve and key are joined and move to the left. As a result, the outer
synchronizer ring is pressed to the left, friction torque is generated
between the synchronizer cone and outer synchronizer ring and
inner synchronizer ring, and the 1st speed gear and synchronizer
hub (intermediate shaft) begin to synchronize.
Then, when the shift fork moves to the left, the synchronizer sleeve
pushes the synchronizer key spring tight, crosses over the
synchronizer key and moves to the left.
Manual Transmission
Outer synchronizer ring
outer surface liner respectively, and is coupled with the
clutch gear by the projections (6 locations) on the speed
gear.
The outer synchronizer ring touches the outer surface
liner of the synchronizer cone at the inside cone surface
and is coupled to the synchronizer hub by the
projections (3 locations) on the outer circumference. In
other words, the inner synchronizer ring and outer
synchronizer ring become one
hub and rotate, and the synchronizer cone becomes one
unit with the speed gear and rotates as they touch each
other.
Synchronizer sleeve
Synchronizer
key 2nd speed
gear
Synchronizer hub
09F0123
nit with the synchronizer
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