An Assembly Checking Gauge, ensuring perfect positioning of the cruciform in the Vespa largeframe transmissions output shaft.

A crucial phase in the assembly of Vespa largeframe engines is the correct positioning of the cruciform within the output shaft, to align internally with the surrounding gear cogs. The cruciform is held in position primarily by the external gear ratchet block, which is however not exactly calibrated to guarantee engagement with the gears on the output shaft. Numerous components, with varying mechanical tolerances, can quickly lead to imprecise positioning of the cruciform arms within the individual gears. This can result in mis-selection of the gears and hazardous engine behaviour.

• Exact determination of the cruciforms position.
• Improves the function of the gear selection mechanism and drivetrain.
• Extends the service interval of both the cruciform and the transmission components.

This 'transmission assembly gauge' from BENELLI allows a perfect alignment every time! The transmission alignment can be exactly measured during the assembly process, before it is installed within the gearbox. Once the output shaft is mounted, the cruciform can then be exactly distanced using this measurement made with the gauge as a guide. The cruciform is then held in a perfect position within each gear cog, ideal for optimal transmission of the motors power to the rear wheel.

Conclusion: An extremely practical tool, ensuring a solid transmission and drivetrain.