Ferrari 308 Workshop Manual

Short Description
Intructions to follow when ordering parts. When ordering spare parts, always specify clearly part description and reference number: you will find it on the “Spare Parts Book”. Furthermore, also engine and chassis numbers are required.

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Content
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This forward speeds synchronization is obtained by the parts shown in figures 4 and 5. The sliding sleve (1) has an internal toothing which engages with the synchro hub (2) of gear (3) thus connnecting it stiffly to the synchronizer (4) then to shaft (5).
Making he sliding sleeve (1) move in an axial movement to the right or left side, in the same time also the synchro ring (6) is moved by the pressure pads (7) which are pressed in a radial way againts the sleeve by the coil springs (8) (fig.4) or by the righ springs 9 (Fig.5). Therefore the conical surface of synchro ring is pressed on the correponding conical surface of the synchro hub. Due to the small angle of incidence betwen the two conical surfaces, radial forces appear on the gear (10) dragging it in rotation thus reducing the differences of angular speed between gear (10) and synchronizer (4), i.e, between shaft (5) and gear. Soon after the syncronization between the parts, a further movement of sleeve takes place, making the definite coupling between gear (1) and synchronizer (4).
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