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scrivyscriv
Samba Electrician
Joined: October 04, 2011
Posts: 2922
Location: Memphis
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 Posted: Fri Aug 08, 2014 1:06 pm Post subject: |
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Oh okay I understand now. Yeah those two I linked are definitely not gonna do anything for you. I rarely see those Motorola internal/external reg units even discussed here on any of the forums.. you're right everyone just picks up a Bosch clone AL-82.
I can see those Motorola units rapidly becoming less and less useful, 100% because of that oddball regulator assy.
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Danwvw
Samba Member
Joined: July 31, 2012
Posts: 8892
Location: Oregon Coast
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| Posted: Fri Aug 08, 2014 2:14 pm Post subject: |
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There are a couple of them and a white box regulator in the Samba Classifieds. But what I am thinking is that it is just a brush is worn down. The 3 prong alternators will work with a number of $15-$30 External Voltage Regulators or Another one and you could probably modify yours to use one if it's the regulator. But yeah, If you take a 12 volt 1156 lamp and connect it between a positive 12 volts and your DF brush, I thinK D- Brush is already grounded. Anyway that should be a way to test if it's the regulator. It should charge if the bushes are good when you by-pass the regulator with the lamp.
I just bought the little brushes on e-bay for like $1.95 or something.
Alternator Brush,
Brush worn down:
1156 Lamp:
B Circuit Voltage Regulator being used with the Motorola AL-8 Series Alternator.
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Brian
Samba Moderator
Joined: May 28, 2012
Posts: 8340
Location: Oceanside
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| Posted: Fri Aug 08, 2014 9:33 pm Post subject: |
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| yamaducci wrote: |
You still have the wrong one. |
Ah, they look similar.
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Danwvw
Samba Member
Joined: July 31, 2012
Posts: 8892
Location: Oregon Coast
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| Posted: Sat Aug 09, 2014 10:59 am Post subject: |
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Yeah, I know: Those aftermarket Motorola Alternator White boxes are hard to find these days, Kind of neat though. Wish I had one to play with. They look a little more formabale than the 3 prong. And it's nice the reg-is built on to the alternator like that.
I need a Motorola alternator regulator. Is another thread about these alternators. It would not take too much electronic prowess to repair the old one with a micro regulator like the L9484 Voltage regulator Digi Key.
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yamaducci
Samba Member
Joined: March 30, 2010
Posts: 2335
Location: Mount Airy, Maryland
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| Posted: Wed Nov 23, 2016 12:46 pm Post subject: Re: Source for Motorola White Box Alternator Regulator |
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I know this is an old post but it may be of help to some of you who still have the Motorolla alternator 1975-1979 with the "white box" regulator sitting on top. earlier in this post there was a link for a NOS one at Bug City for $120 but here is the part number M 5-762 for about $55. Now I can try to fix my polished alternator after all these years!
http://store.alternatorparts.com/m5762-voltage-regulator-for-bosch-alternator.aspx
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