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General Category => General Discussion => Topic started by: wirespokes on May 24, 2026, 08:43:50 PM

Title: Loop Alternator Conversion
Post by: wirespokes on May 24, 2026, 08:43:50 PM

Looks like I'm a little late to this party.  :cry:

Greg Field used to sell the mounting brackets and I guess a whole kit including alternator. Other places used to sell the mounting bracket, but not now. Looks like I'll have to make the bracket myself.

Are there drawings anywhere I could access? Any idea where I could locate the bracket new or used?

Title: Re: Loop Alternator Conversion
Post by: Antietam Classic Cycle on May 24, 2026, 08:57:29 PM

Harper's has them.
https://harpermoto.com/products/12700300m-loopframe-alternator-bracket-only

Joe Walano "The Guzzi Doctor" may also have some left to sell.

I installed one on my police Eldo and the hole for the oil line was too high, so unless they've moved it, that needs to be modified. Edit: one other thing I did: removed the powercoating on the underside so there would be a good ground to the case, and removed it also where the alternator contacts the bracket for the same reason.


(https://i.ibb.co/YTjt3nh6/Lannis-Ambo-police-Eldo-014.jpg) (https://ibb.co/YTjt3nh6)

(https://i.ibb.co/ycFP5T00/Lannis-Ambo-police-Eldo-015.jpg) (https://ibb.co/ycFP5T00)


Greg Bender sells a harness. I bought a Nippon-Denso copy alternator on ebay.
https://www.ebay.com/itm/306059867870

Title: Re: Loop Alternator Conversion
Post by: Tom H on May 24, 2026, 11:35:10 PM

Charlie,

Did the generator light work correctly with the alternator that you linked??

I have a Denso copy for a spare that the light does not work right.

Tom

Title: Re: Loop Alternator Conversion
Post by: Antietam Classic Cycle on May 25, 2026, 08:32:39 AM

Quote from: Tom H on May 24, 2026, 11:35:10 PM

Charlie,

Did the generator light work correctly with the alternator that you linked??

I have a Denso copy for a spare that the light does not work right.

Tom

So far it is.

Title: Re: Loop Alternator Conversion
Post by: Perazzimx14 on May 25, 2026, 08:39:28 AM

I built my own alternator bracket out of 1-1/2" flat stock and 1/4" pipe. I'll have to search around to see if I have any pictures. The bracket looked sort of like the USS Enterprise

Title: Re: Loop Alternator Conversion
Post by: Cam3512 on May 25, 2026, 08:54:03 AM

When I bought my current ‘71 police Ambo, the seller had a new Field/Nolan Alt kit still in the box.  I didn’t hesitate to buy it from him to add to the refurb (to include new cylinders) at Charlie’s place. 


(https://i.ibb.co/23bWH3wT/IMG-5510.jpg) (https://ibb.co/23bWH3wT)

Title: Re: Loop Alternator Conversion
Post by: Tom H on May 25, 2026, 10:50:11 AM

If it's working, it will keep working. The copy I have did not make the light work correctly out of the box. I don't remember the exact issue, I think the light stayed on even though it was charging?? BTW police dash on both bikes with the pull knob for ignition.

Might have to pick up one of those. Thanks!
Tom