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General Category => General Discussion => Topic started by: lazlokovacs on June 09, 2019, 05:46:34 PM

Title: alternator variations
Post by: lazlokovacs on June 09, 2019, 05:46:34 PM

hi there everyone

anyone know if the bosch and ducati alternators are interchangable?


or, put another way, I want to retro fit a bosch alternator onto a Calvin 1100 engine (originally equipped with the ducati alternator)

are the crankshaft noses, woodruff keys etc the same throughout the years?

thanks again to all

Title: Re: alternator variations
Post by: Antietam Classic Cycle on June 09, 2019, 07:13:09 PM

Quote from: lazlokovacs on June 09, 2019, 05:46:34 PM

hi there everyone

anyone know if the bosch and ducati alternators are interchangable?


or, put another way, I want to retro fit a bosch alternator onto a Calvin 1100 engine (originally equipped with the ducati alternator)

are the crankshaft noses, woodruff keys etc the same throughout the years?

thanks again to all

Crank noses are different - Bosch (and Saprisa) are short and tapered, Ducati is long and straight. No woodruff key on the short, tapered either. 

Title: Re: alternator variations
Post by: lazlokovacs on June 09, 2019, 07:31:11 PM

charlie, one of these days I'll send you a bottle of scotch in the mail to say thanks for all the info!

Or if I'm ever in Antietam....

btw my girlfriend (who's american) just taught me how to pronouce antietam, so now I know....

 :thumb:

Title: Re: alternator variations
Post by: Antietam Classic Cycle on June 09, 2019, 07:56:48 PM

Scotch would be wasted on me - I don't partake of alcoholic beverages. Happy to help.