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74SBBaja
Samba Member
Joined: July 03, 2020
Posts: 50
Location: TN
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 Posted: Thu Dec 02, 2021 5:02 pm Post subject: Alternator Question |
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Hi All,
I have a '74 Super with a VW 043-03-023A alternator. The best I can tell is that this is a 50 amp alternator with an internal regulator.
My bug also has an external regulator behind the drivers seat cargo area. The wiring looks right and nothing seems out of place.
This seems odd me.
Finally to my question:
Why would there be two regulators?
Thanks,
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74 SB
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Glenn 
Mr. 010
Joined: December 25, 2001
Posts: 76911
Location: Sneaking up behind you
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| Posted: Thu Dec 02, 2021 5:21 pm Post subject: Re: Alternator Question |
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The under seat is most likely disconnected or bypassed.
_________________
Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
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74SBBaja
Samba Member
Joined: July 03, 2020
Posts: 50
Location: TN
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| Posted: Thu Dec 02, 2021 5:27 pm Post subject: Re: Alternator Question |
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| Glenn wrote: |
| The under seat is most likely disconnected or bypassed. |
Not sure about that. As I said, nothing looks out of place. I have went through the bug from one end to the other. The external regulator is wired up.
Since it is still wired up, how would it be bypassed? Not being a smartarse, seriously asking. 
Thanks.
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74 SB
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Lingwendil
Samba Member
Joined: February 25, 2009
Posts: 3988
Location: Antioch, California, a block from the hood
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74SBBaja
Samba Member
Joined: July 03, 2020
Posts: 50
Location: TN
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| Posted: Thu Dec 02, 2021 6:30 pm Post subject: Re: Alternator Question |
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| Lingwendil wrote: |
Well, show us some pictures 
I've seen regulators bypassed in, ahem, creative ways. |
 That would help. Looking at the regulator, the only wires that plug in to the regulator is the pig tail that is seen. I don't see any descriptive information on it. I need some schooling, please.
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74 SB
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60ragtop
Bonneville Belt Bitch
Joined: March 13, 2006
Posts: 7800
Location: Big Wonderful WYO 82401
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| Posted: Thu Dec 02, 2021 6:41 pm Post subject: Re: Alternator Question |
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Nope it's an external regulater
_________________
Rick
Certified Mechanic by the State of Michigan in 1977
ASA certified in 1987
Certified Hunter Wheel Alignment Master Technician 1986
| tasb wrote: |
I've restored a large number too, but I don't toot my horn quite as loud.
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| sb001 wrote: |
| maybe he just snapped cause his car sucked |
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74SBBaja
Samba Member
Joined: July 03, 2020
Posts: 50
Location: TN
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| Posted: Thu Dec 02, 2021 6:46 pm Post subject: Re: Alternator Question |
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ok...
Looks like the original Bosch 3 prong alternators required an external regulator. I found conflicting information on the www.
Thanks for amusing me. 
60ragtop is right on the money.
Thank you all for helping.
Take care.
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74 SB
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Dale M.
Samba Member
Joined: April 12, 2006
Posts: 20379
Location: Just a tiny bit west of Yosemite Valley
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| Posted: Thu Dec 02, 2021 7:28 pm Post subject: Re: Alternator Question |
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Basically it is what is referred to as a AL78...
Believe it was a one year only (74) before transitioning to internal regulated alternator (AL82)...
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“Fear The Government That Wants To Take Your Guns" - Thomas Jefferson.
"Kellison Sand Piper Roadster" For Street & Show.
"Joe Pody Sandrover" Buggy with 2180 for Autocross (Sold)
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All suggestions and advice are purely my own opinion. You are free to ignore them if you wish ...
Last edited by Dale M. on Fri Dec 03, 2021 8:45 am; edited 1 time in total |
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Glenn
Mr. 010
Joined: December 25, 2001
Posts: 76911
Location: Sneaking up behind you
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| Posted: Thu Dec 02, 2021 7:41 pm Post subject: Re: Alternator Question |
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Yep.. AL78, I have one on my 74 Beetle.
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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
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74SBBaja
Samba Member
Joined: July 03, 2020
Posts: 50
Location: TN
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| Posted: Fri Dec 03, 2021 4:35 am Post subject: Re: Alternator Question |
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This isn’t the first time a have run into a ‘74 one off item. One thing I have learned while rebuilding my bug, is that ‘74 was an odd year for sure. I guess more of a experimental and transition year.
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74 SB
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