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Source for Motorola White Box Alternator Regulator
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yamaducci
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PostPosted: Tue Aug 05, 2014 1:08 pm    Post subject: Source for Motorola White Box Alternator Regulator Reply with quote

Has anyone found a source for those white box regulators that go on the Motorola alternators? I gave up a while back but I still have a nice polished alternator that had under 500 miles on it.
I woud lalso like a parts source for rebuild parts for any of our alternators.
Thanks
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scrivyscriv
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PostPosted: Tue Aug 05, 2014 1:26 pm    Post subject: Reply with quote

Good luck with the regulator search! I found one used once.. it came apart in my hands. That one didn't seem to age well. Laughing

Antonio Trejo wrote that individual parts are not available. He said that the only available parts are the brush holder assy and new complete alternators!

Don't know if the Motorola uses the same internals but there's an AL-82 thread that I was working on where one of the guys posted links to generic rectifier diodes, brushes, and both bearings.

Ref http://www.thesamba.com/vw/forum/viewtopic.php?p=7265706
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vwracerdave
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PostPosted: Tue Aug 05, 2014 3:01 pm    Post subject: Reply with quote

https://www.bugcity.com/shop/shop.htm?pquery=motorola+voltage+regulator

Don't know if this is what you need but a quick google search turned up this part.
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yamaducci
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PostPosted: Wed Aug 06, 2014 6:30 am    Post subject: Reply with quote

Thanks Dave. Now I wonder if after spending over $100 for a regulator that it could be a Diode as well. Do you know of any alternator parts sources for these? Or even what Model alternator that was called (model has been polished off)? It looks like an AL82 body except the brush/regulator area.
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yamaducci
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PostPosted: Wed Aug 06, 2014 6:35 am    Post subject: Reply with quote

I just found this but no price.
http://www.amscovf.com/REGULATOR-12V--MO_p_229192.html

So there is hope that others may have it and hopefully cheaper than $100.
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74 Thing
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PostPosted: Wed Aug 06, 2014 6:56 am    Post subject: Reply with quote

There are a few motorola alternators in the classifieds-maybe you can grab one for parts.
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yamaducci
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PostPosted: Wed Aug 06, 2014 6:59 am    Post subject: Reply with quote

74 Thing wrote:
There are a few motorola alternators in the classifieds-maybe you can grab one for parts.

True, since the body of mine was fully polished and went back in the box under 500 miles.
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scrivyscriv
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PostPosted: Wed Aug 06, 2014 7:17 am    Post subject: Reply with quote

Hey yammaduci what are your symptoms?
If you're not overly concerned about stock appearance, you can run a bus vreg.. Those tend to be easier to find and much cheaper.
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yamaducci
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PostPosted: Wed Aug 06, 2014 7:21 am    Post subject: Reply with quote

scrivyscriv wrote:
Hey yammaduci what are your symptoms?
If you're not overly concerned about stock appearance, you can run a bus vreg.. Those tend to be easier to find and much cheaper.

The light came on and it stopped charging so I took it off, took it apart and it looks like the regulator got pretty hot and probably died. Not sure on the diode but one of them might be gone as well. I threw it in the box and it's been there for a couple years. Rather than toss it when cleaning the garage I decided to see if I can revive it for my new 1957 Oval.
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Dale M.
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PostPosted: Wed Aug 06, 2014 8:13 am    Post subject: Reply with quote

With all the numbers in the ad for the one you found it should be easier to source one.... Usually problem is finding a part number to begin with....

$4.31 ????????????
http://www.irpauto.com/SPEC.PDF

Some other numbers found...

The regulator 8RC2007, also goes by the stock numbers:

MA-240
105-762
M5-762
VR-1212
14991

Dale
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scrivyscriv
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PostPosted: Wed Aug 06, 2014 1:43 pm    Post subject: Reply with quote

It might have been a rectifier dioide, but I agree with you, the regulator is a more likely suspect part.

Might try something like this:
http://www.thesamba.com/vw/classifieds/detail.php?id=1658826
Or this NOS Motorlola regulator:
http://www.thesamba.com/vw/classifieds/detail.php?id=1591682

You should be able to press the diodes out and back in with one of the rectifier diodes linked in the thread I posted above, if you need diodes.
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yamaducci
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PostPosted: Wed Aug 06, 2014 1:53 pm    Post subject: Reply with quote

Neither one of them are designed for the White box Motorola. But thanks. I did find a couple leades; just not on other rebuild parts.
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scrivyscriv
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PostPosted: Wed Aug 06, 2014 2:03 pm    Post subject: Reply with quote

The late bay bus alternator voltage regulator is a common direct replacement for the externally regulated type one alternators... obviously it's not the identical part.. they function the same.
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Dale M.
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PostPosted: Wed Aug 06, 2014 4:45 pm    Post subject: Reply with quote

scrivyscriv wrote:
The late bay bus alternator voltage regulator is a common direct replacement for the externally regulated type one alternators... obviously it's not the identical part.. they function the same.


You don't understand...... Yamaducci is looking for INTERNAL regulator for Motorola alternator...

Dale
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Brian
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PostPosted: Thu Aug 07, 2014 5:21 pm    Post subject: Reply with quote

we're talking about these ones right?

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PostPosted: Thu Aug 07, 2014 7:19 pm    Post subject: Reply with quote

This one...(ignore red arrow)

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This actual unit...

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Dale
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Brian
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PostPosted: Thu Aug 07, 2014 8:23 pm    Post subject: Reply with quote

Sweet, cause I need two.

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PostPosted: Fri Aug 08, 2014 2:50 am    Post subject: Reply with quote

I have one of these alt's. The diodes are bad. It was cheaper to replace the unit than have it rebuilt. They wanted almost $200 for the rebuild, I bought a new one for $75.
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74 Thing
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PostPosted: Fri Aug 08, 2014 10:52 am    Post subject: Reply with quote

http://www.carid.com/1974-volkswagen-beetle-chargi...aQod_ZkAmQ

http://www.ebay.com/sch/i.html?_from=R40&_trks...p;_sacat=0
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yamaducci
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PostPosted: Fri Aug 08, 2014 11:16 am    Post subject: Reply with quote

Brian wrote:
Sweet, cause I need two.

Image may have been reduced in size. Click image to view fullscreen.


You still have the wrong one. What Dale posted is what we are discussing and not what you have there. I did find a China maker who makes the ones I need but minimum order is 200 of them. If there was a high demand I woud do it but everyone has already moved on to the AL82 when they need a new one. Aparently
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