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HenrikL
Samba Member
Joined: October 31, 2005
Posts: 320
Location: Sweden
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 Posted: Thu Sep 03, 2015 11:38 am Post subject: Porsche 912 12V 90 mm generator in a Type 3? |
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From this thread:
www.thesamba.com/vw/forum/viewtopic.php?t=502713
| Erik G wrote: |
| Could one take a 356 gen, put it on a laithe and mill the front (front of car) end off, then use the type 3 6v end cap? It wouldn't be cheap if you buy all your stuff retail, but I've had good luck getting 356 generators cheap. Keep in mind they are only 25 amp ... |
Has anyone tried this? Is it possble to take the "12V parts" from the Porsche generator and put them in the Type 3 6V generator housing? |
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mackaymanx
Samba Member
Joined: October 12, 2006
Posts: 479
Location: Australia
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| Posted: Thu Sep 03, 2015 2:44 pm Post subject: |
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You could use the generators from the industrial type 1 motors, 38 amps! We got them here in Australian on air compressors.
I see no reason why you couldn't adapt one but the long section of thread for the pulley would be at the wrong end. |
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Bobnotch
Samba Member
Joined: July 06, 2003
Posts: 23406
Location: Kimball, Mi
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| Posted: Thu Sep 03, 2015 7:44 pm Post subject: Re: Porsche 912 12V 90 mm generator in a Type 3? |
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| HenrikL wrote: |
From this thread:
www.thesamba.com/vw/forum/viewtopic.php?t=502713
| Erik G wrote: |
| Could one take a 356 gen, put it on a laithe and mill the front (front of car) end off, then use the type 3 6v end cap? It wouldn't be cheap if you buy all your stuff retail, but I've had good luck getting 356 generators cheap. Keep in mind they are only 25 amp ... |
Has anyone tried this? Is it possble to take the "12V parts" from the Porsche generator and put them in the Type 3 6V generator housing? |
The person to ask would be Erik, as it sounds like he's done it before (using a Porsche generator). Or, you could locate a 12 V fan shroud, and then convert to a regular 12 volt generator, or even go with an alternator of your choice (use either a T-1 VW or a Mitsubishi forklift alt).
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| "Friends are God's way of apologizing for relatives." |
| Tram wrote: |
| People keep confusing "restored" and "restroyed". |
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notchboy
Samba Member
Joined: April 27, 2002
Posts: 22659
Location: Escondido CA
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| Posted: Thu Sep 03, 2015 9:20 pm Post subject: |
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| notchboy wrote: |
| Mike Fisher wrote: |
| jimmynotch had his small 6V generator rebuilt into 12V. |
I did as well for the Anthracite notch.
The OG 12v were a service vehicle M Code making them rare as hens teeth. Meant for Police-Fire-Ambulance vehicles. Somewhere, someone took a pic of a 12v gen on a service veh at a show from the 80's. Other than looking over a parts book code, Id of never known. |
You can have the 6v one rewound for 12 volts.
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| t3kg wrote: |
OK, this thread is over. You win. |
Jason "notchboy" Weigel
1964 1500 S
1964 T34 S Convertible
1977 Westfalia Camper pop-top |
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HenrikL
Samba Member
Joined: October 31, 2005
Posts: 320
Location: Sweden
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| Posted: Thu Sep 03, 2015 11:49 pm Post subject: |
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| mackaymanx wrote: |
You could use the generators from the industrial type 1 motors, 38 amps! We got them here in Australian on air compressors.
I see no reason why you couldn't adapt one but the long section of thread for the pulley would be at the wrong end. |
Yes, I've got one of those industrial engine generators as well, but didn't know they had a different output than the 912 version.
Somehow I was hoping someone had tried this operation before. I do not want to destroy rare parts experimenting. |
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HenrikL
Samba Member
Joined: October 31, 2005
Posts: 320
Location: Sweden
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| Posted: Thu Sep 03, 2015 11:51 pm Post subject: Re: Porsche 912 12V 90 mm generator in a Type 3? |
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| Bobnotch wrote: |
| Or, you could locate a 12 V fan shroud, and then convert to a regular 12 volt generator, or even go with an alternator of your choice (use either a T-1 VW or a Mitsubishi forklift alt). |
Yes, changing fan shroud would be the obvious thing to do, but I want to keep the modifications to a minimum and everything to look stock. |
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HenrikL
Samba Member
Joined: October 31, 2005
Posts: 320
Location: Sweden
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| Posted: Thu Sep 03, 2015 11:53 pm Post subject: |
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| notchboy wrote: |
| You can have the 6v one rewound for 12 volts. |
Looked into this option, but it seems that no one does that any more in Sweden. One auto electrics shop said "The guy who knew how to rewound died 20 years ago.".....  |
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gregson1
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Joined: December 13, 2004
Posts: 464
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squaretobehip
Samba Member
Joined: August 23, 2004
Posts: 4029
Location: San Jose, CA
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| Posted: Fri Sep 04, 2015 8:56 am Post subject: |
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| HenrikL wrote: |
| notchboy wrote: |
| You can have the 6v one rewound for 12 volts. |
Looked into this option, but it seems that no one does that any more in Sweden. One auto electrics shop said "The guy who knew how to rewound died 20 years ago."..... |
iSP West can have one done for you.
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ALLWAGONS
Samba Member
Joined: June 03, 2000
Posts: 4632
Location: Pasadena CA/DTLA soon China
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| Posted: Fri Sep 04, 2015 10:02 am Post subject: |
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| squaretobehip wrote: |
| HenrikL wrote: |
| notchboy wrote: |
| You can have the 6v one rewound for 12 volts. |
Looked into this option, but it seems that no one does that any more in Sweden. One auto electrics shop said "The guy who knew how to rewound died 20 years ago."..... |
iSP West can have one done for you. |
Yeah!!!!! 
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Thanks to my Tesla driving neighbors, I feel more relaxed driving my SUBURBAN and old VW's.
Everything sounds good on paper! |
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Erik G
Samba Member
Joined: October 16, 2002
Posts: 13547
Location: Tejas!
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| Posted: Fri Sep 04, 2015 10:35 am Post subject: Re: Porsche 912 12V 90 mm generator in a Type 3? |
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| Bobnotch wrote: |
| HenrikL wrote: |
From this thread:
www.thesamba.com/vw/forum/viewtopic.php?t=502713
| Erik G wrote: |
| Could one take a 356 gen, put it on a laithe and mill the front (front of car) end off, then use the type 3 6v end cap? It wouldn't be cheap if you buy all your stuff retail, but I've had good luck getting 356 generators cheap. Keep in mind they are only 25 amp ... |
Has anyone tried this? Is it possble to take the "12V parts" from the Porsche generator and put them in the Type 3 6V generator housing? |
The person to ask would be Erik, as it sounds like he's done it before (using a Porsche generator). Or, you could locate a 12 V fan shroud, and then convert to a regular 12 volt generator, or even go with an alternator of your choice (use either a T-1 VW or a Mitsubishi forklift alt). |
Just to be clear, I never did it - was just being hypothetical
My 63 I prefer to keep it stock
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Stop dead photo links! Post your photos to The Samba Gallery! |
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HenrikL
Samba Member
Joined: October 31, 2005
Posts: 320
Location: Sweden
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| Posted: Mon Sep 07, 2015 12:10 am Post subject: |
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Very nice, but I'm in Sweden and before that baby is on my doorstep it will have cost me about the same as an engine rebuild.
I also have the 912/industrial engine parts and it is tempting to try to use them. |
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HenrikL
Samba Member
Joined: October 31, 2005
Posts: 320
Location: Sweden
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notchboy
Samba Member
Joined: April 27, 2002
Posts: 22659
Location: Escondido CA
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HenrikL
Samba Member
Joined: October 31, 2005
Posts: 320
Location: Sweden
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| Posted: Fri Jun 30, 2017 3:41 pm Post subject: Re: Porsche 912 12V 90 mm generator in a Type 3? |
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| notchboy wrote: |
Are you still looking to do this change?  |
It's only 2 years since I started the thread. My projects progress very slow.  |
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ataraxia
Samba Member
Joined: March 19, 2010
Posts: 4507
Location: Illinois
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| Posted: Fri Jun 30, 2017 6:48 pm Post subject: Re: Porsche 912 12V 90 mm generator in a Type 3? |
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The shop that sells this kit will also sell one for a Type 3 - or at least they told me they would when I called them a couple of years ago. Might be worth asking about if you don't want to do any modifications. |
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akokarski
Samba Member
Joined: May 24, 2004
Posts: 2103
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| Posted: Fri Jun 30, 2017 8:13 pm Post subject: Re: Porsche 912 12V 90 mm generator in a Type 3? |
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T1 armature can be cut to fit into t3 generator. I had this done.
Anton |
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HenrikL
Samba Member
Joined: October 31, 2005
Posts: 320
Location: Sweden
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| Posted: Sat Jul 01, 2017 9:55 am Post subject: Re: Porsche 912 12V 90 mm generator in a Type 3? |
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I did a check on my parts today. The left generator is a Type 1 12V 38A generator. The right is a 1964 6V Type 3 generator.
Note that the threads on the end is shorter on the Type 1 generator. The threads are 16 mm on the Type 3 and 12.5 mm on the Type 1.
This has the consequence that you can only use 4 shims if you want the pulley nut to use all threads on the shaft. Some machining of the pulley or washers may fix this, but for the moment I'm giving up on this solution.
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Donnie strickland
Samba Member
Joined: December 21, 2009
Posts: 2403
Location: Moody, AL
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| Posted: Sat Jul 01, 2017 10:43 am Post subject: Re: Porsche 912 12V 90 mm generator in a Type 3? |
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Keep in mind also, that the Type 3 generator has a hole in the side to allow air from the fan housing to cool the generator. The Type 1 generator does not have that, instead receiving its cooling air through the front end.
How much effect this would have on longevity, I don't know.
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mackaymanx
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Joined: October 12, 2006
Posts: 479
Location: Australia
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