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generator exchange

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milwaukee belle

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Posts: 923

Joined: Thu Jul 24, 2003 12:01 am

Location: South Provence of FRANCE

Post Wed Aug 13, 2008 2:13 am

generator exchange

i wil try to be the more CLEAR as possible :

is it POSSIBLE tu mount a sport's generator on a 45' ( converted into 12 Volts )
...what about the oil-slinger ? ( i see "modern" gens don't have one )
...fitting ? the same system with two longs screws + one steel belt , but :
the "modern" gens have a LONGER drive gear axle : will it FIT in the camcover ?
...what about the regulator ?
A: 45'P.D. Stuff ? ( éléctronic )
B: V-Twin stuff ? ( they are NOT the same !!!! )

please , light my ol'brain about this ...
and if you own some exacts partnumbers do drive me in my next order : tell me !
Thanks !


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Joined: Thu Sep 30, 1999 12:01 am

Location: Central Illinois, USA

Post Wed Aug 13, 2008 8:06 pm

Re: generator exchange


Your first concern may be different attachment bolts:
Most pre-'58 45" cases accept 1/4"-24 bolts, but the generator will be tapped for 5/16"-24 bolts.

If your cases are the early variety, the simple remedy is to install 1/4"-24 helicoils into the holes in the generator.
You will not need a special tap.

I leave it for others to address the other concerns.

Good luck!


George Greer

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Joined: Wed Aug 28, 2002 12:01 am

Location: Markt Einersheim, Germany

Post Wed Aug 13, 2008 8:49 pm

Re: generator exchange


I got a 12Volt electronic regulator from Unka Kurt aka 45 Parts Depot on my WLA with a 12Volt battery from Panasonic that's normally used for a powersupply for Emegency Lighting Systems.

Regulator's under a orininal cover, and looks good, and works just fine!

OH yea...Cycle Ray Generator.

I wish that I could find a 6 Volt battery that I could cut apart--take out the insides and stuff the Panasonic battery inside for a more original look.



Posts: 531

Joined: Mon Apr 15, 2002 12:01 am

Location: Wa, USA

Post Thu Aug 14, 2008 10:16 pm

Re: generator exchange

The oil slinger gear fits on the sporty generator, and a nylock nut can be used to retain it instead of a pin, but the threads on the sporty shaft must be ground off so they don't extend beyond the nut. If you don't do this, you can install the generator, but you can't remove it as the threads catch on the spring loaded widget in the cam cover.


Posts: 43

Joined: Fri Jan 18, 2008 2:24 pm

Post Fri Aug 15, 2008 2:11 pm

Re: generator exchange

I believe you can use the oil slinger from a 58-66? Servi-Car 2 brush generator.

krazy loop

Posts: 646

Joined: Sat Jul 31, 2004 12:01 am

Location: Detroit

Post Sun Sep 07, 2008 10:22 pm

Re: generator exchange

I believe sportsters did not use a slinger, just a flat washer.
New Knuckleheads? Thank, you, Jesus!!


Posts: 43

Joined: Fri Jan 18, 2008 2:24 pm

Post Mon Sep 08, 2008 1:26 pm

Re: generator exchange

The Servi-Car 2 brush used an oil slinger, the XLs used a fender washer, and the Big Twins had nothing on the shaft but a nut and small flat washer.

Chris Haynes

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Joined: Wed Jul 05, 2000 12:01 am

Location: Los Angeles, CA

Post Mon Sep 08, 2008 4:18 pm

Re: generator exchange

It is an easy thing to drill and tap two 1/4-24 holes in the generator to bolt it on after you put the Servi Car gear in it. Servi Cars used the same Model 58 and 65 generator on their non radio equipted machines.

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