Author Topic: Loop Alternator Conversion  (Read 147 times)

Offline wirespokes

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Loop Alternator Conversion
« 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?

Online Antietam Classic Cycle

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Re: Loop Alternator Conversion
« Reply #1 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.







Greg Bender sells a harness. I bought a Nippon-Denso copy alternator on ebay.
https://www.ebay.com/itm/306059867870
« Last Edit: Today at 08:44:55 AM by Antietam Classic Cycle »
Charlie

Online Tom H

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Re: Loop Alternator Conversion
« Reply #2 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
2004 Cali EV Touring
1972 Eldo
1970 Ambo V1000
1973 R75/5 SWB with Toaster
1973 R75/5 LWB
2007 HD Street Bob
1953 Triumph 6T (one day it will be on the road!)

Online Antietam Classic Cycle

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Re: Loop Alternator Conversion
« Reply #3 on: Today at 08:32:39 AM »
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.
Charlie

Online Perazzimx14

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Re: Loop Alternator Conversion
« Reply #4 on: Today at 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
2021 Moto Guzzi V85TT Guardia D'onore
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Online Cam3512

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Re: Loop Alternator Conversion
« Reply #5 on: Today at 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. 



« Last Edit: Today at 08:59:08 AM by Cam3512 »
Cam in NJ
'67 Stornello Scrambler
'71 Ambo Police
'74 V7 Sport
‘20 V85TT

http://mgnocnj.forumotion.com

Online Tom H

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Re: Loop Alternator Conversion
« Reply #6 on: Today at 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
2004 Cali EV Touring
1972 Eldo
1970 Ambo V1000
1973 R75/5 SWB with Toaster
1973 R75/5 LWB
2007 HD Street Bob
1953 Triumph 6T (one day it will be on the road!)

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