Gregory Bender
 

Transmission - Comparison of early and late 4 speed transmission cases

Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models

Created:

Updated:

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Thanks to Charlie Mullendore of Antietam Classic Cycle for sending me this information. In Charlie's own words and photos:

Towards the end of Ambassador 4 speed production, it seems Guzzi revised the case casting in order to use it for the first 5 speed in the Telaio Rosso.

I was comparing 4 and 5 speed cases today and it seems there would need to be even more substantial modifications made before you could have a Telaio Rosso replica 5 speed. Would be an interesting project if one had a need.

Some pertinent information on pages 2 & 3 here: http://www.zydecoracing.com/TR2.html

Early 4 speed case.
Early 4 speed case.

Photo courtesy of Charlie Mullendore of Antietam Classic Cycle.

Late 4 speed case.
Late 4 speed case.

Photo courtesy of Charlie Mullendore of Antietam Classic Cycle.

Normal 5 speed rear cover would bolt right onto the late 4 speed case if the holes for the locating pins were drilled.
Normal 5 speed rear cover would bolt right onto the late 4 speed case if the holes for the locating pins were drilled.

Photo courtesy of Charlie Mullendore of Antietam Classic Cycle.

Changes to the case around the input shaft bearing so that it can be machined for a bearing retainer.
Changes to the case around the input shaft bearing so that it can be machined for a bearing retainer.

Photo courtesy of Charlie Mullendore of Antietam Classic Cycle.

Changes to the case around the input shaft bearing so that it can be machined for a bearing retainer.
Changes to the case around the input shaft bearing so that it can be machined for a bearing retainer.

Photo courtesy of Charlie Mullendore of Antietam Classic Cycle.