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generator exchange

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Post Wed Aug 13, 2008 2:13 am

Posts: 923
Location: South Provence of FRANCE

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 !

Post Wed Aug 13, 2008 8:06 pm

Posts: 3011
Location: Central Illinois, USA

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!


Post Wed Aug 13, 2008 8:49 pm

Posts: 975
Location: Markt Einersheim, Germany


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.


Post Thu Aug 14, 2008 10:16 pm

Posts: 536
Location: Wa, USA
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.

Post Fri Aug 15, 2008 2:11 pm

Posts: 43
I believe you can use the oil slinger from a 58-66? Servi-Car 2 brush generator.

Post Sun Sep 07, 2008 10:22 pm

Posts: 646
Location: Detroit
I believe sportsters did not use a slinger, just a flat washer.
New Knuckleheads? Thank, you, Jesus!!

Post Mon Sep 08, 2008 1:26 pm

Posts: 43
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.

Post Mon Sep 08, 2008 4:18 pm

Posts: 2677
Location: Los Angeles, CA
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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