Mounts; Gear Shifting System - Alfa Romeo 159 Training Material

GEARBOX
TRIPLE CONE SYNCHRONISER
SINGLE CONE SYNCHRONISER

5.2.5 Mounts

Gear shifting system

1
gear engagement lever
gear selection lever
The shifting system consists of a linkage connected to the lever in the passenger compartment via Bowden wires.
The linkages has two movements: the vertical stroke is used to select the synchroniser; the rotary movement is used
to operate the respective synchroniser fork.
Traccia Didattica Alfa 159-en-ridotta
ALFA 159 TRAINING MATERIAL
The first and second gear synchronisers consist of
three tapered clutches (hence the "triple cone"). The
purpose is to share the load caused by synchronising
the speed of the gear and that of the shaft on three
friction surfaces, instead of only one. Gear shifting is
easier in this way.
A single cone sync is used for the fifth and sixth gear
and for reverse given the lower torque multiplication of
the gearbox.
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