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1302s Samba Member
Joined: December 16, 2010 Posts: 13
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Posted: Sun Apr 29, 2012 4:14 am Post subject: Regulator bypass wiring (generator to alternator conversion) |
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Hi all
I'm upgrading my generator to an alternator and this means I need to bypass the standard voltage regulator under the rear seat. To wire the necessary connections ('DF' to '61' and 'D+' to 'B+') without creating ugly splices I have gutted and rewired the existing regulator by soldering in two wires that pass from the outside of the regulator to the inside, as shown in the photos below. I have used a grommet to protect the heavy D+ cable. All of this seems very practical (I think). Does anyone (auto electricians please!) know any good reasons why it would NOT be a good idea to take this approach?
Thank you
1302s
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Joel Samba Member

Joined: September 04, 2006 Posts: 11099 Location: NSW Australia
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Posted: Sun Apr 29, 2012 4:40 am Post subject: |
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Well I gotta give you full points for ingenuity.
It's hidden under the back seat, why worry about a few wire connections being ugly, only you know they are there.
As long as B+ from the alternator is directly linked to the battery and 61 to the warning light it should work fine.
Also make sure all the B+ connections are well insulated.
Be sure to tell any future new owners so they don't go replacing phantom regulators.  _________________ Quick little bug, you got a Porsche motor in that?
1974 Germanlook 1303 2.5 Suba-Beetle |
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Cadaver Samba Member

Joined: April 24, 2012 Posts: 2338
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Posted: Sun Apr 29, 2012 6:06 am Post subject: |
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A+ (so label it , not a regulator)
and 100% easy regression path. back to stock. 10 points.
quality work too... |
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1302s Samba Member
Joined: December 16, 2010 Posts: 13
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Posted: Sun Apr 29, 2012 12:51 pm Post subject: |
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Thanks. Good idea regarding a label. Here is how it looks when done:
Regards
1302s
Any other advice welcome.
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62Latour Samba Member
Joined: August 14, 2023 Posts: 2 Location: Pennsylvania
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Posted: Wed Sep 20, 2023 8:42 am Post subject: Re: Regulator bypass wiring (generator to alternator conversion) |
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I know this is an old thread but can you show us a photo of the finished product installed?
Thanks! _________________ '71 Super Beetle
'69 Bus (gone)
'67 Beetle (gone)
'60 Beetle ragtop (gone, Dads) |
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