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RiversToTheSea
Samba Member
Joined: June 22, 2022
Posts: 63
Location: PNW
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 Posted: Sat May 03, 2025 4:48 pm Post subject: 12V Upgrade project: Where is the converter isolation stud? |
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I'm upgrading the house battery electrical side (and replacing the furnace while I'm in there). I need to disconnect the chassis battery from the isolation post as shown in the Winnebago schematic. It's noted as being close to the 12V converter, which I assume is the Magnatek unit.
I cannot find it. I've removed the Magnatek and the furnace, and pulled the 12V breaker panel out. I do see two ground studs aft near the taillight opening, but I do not see anything that looks like the 12V positive isolation stud. Where is it?
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kourt
Samba Member
Joined: August 13, 2013
Posts: 2292
Location: Austin, TX
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RiversToTheSea
Samba Member
Joined: June 22, 2022
Posts: 63
Location: PNW
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| Posted: Sun May 04, 2025 5:15 am Post subject: Re: 12V Upgrade project: Where is the converter isolation stud? |
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Thanks Kourt, you always come through. I removed the furnace, then removed that sheetmetal frame, and it did not have that stud. There is evidence a previous owner altered some of the wiring, so I guess I need to keep investigating. |
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mikemtnbike
Samba Member
Joined: March 26, 2015
Posts: 2920
Location: North Carolina
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| Posted: Sun May 04, 2025 1:40 pm Post subject: Re: 12V Upgrade project: Where is the converter isolation stud? |
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Looked at your past posts and looks like you have a 1995 like me.
As I posted in the thread kourt linked, no stud on the 1995 except the one behind my steering wheel. 
Look for a splice in the purple wires- a y connection well sealed. That’s the equivalent I replaced it with a stud I installed.
_________________
1991 Vanagon GL 2.1 AT Westfauxlia. "Frankie" Totaled  https://www.thesamba.com/vw/forum/viewtopic.php?t=764510&highlight=carnage
1995 Eurovan Camper "Marzivan"
2020 GTI SE manual |
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dsh1705 
Samba Member
Joined: June 11, 2014
Posts: 114
Location: Seattle, WA
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| Posted: Sun May 04, 2025 2:06 pm Post subject: Re: 12V Upgrade project: Where is the converter isolation stud? |
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My 95 has a stud on the floor near the water pump.
_________________
David
1705.net
95 EVC
ACU,098 |
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mikemtnbike
Samba Member
Joined: March 26, 2015
Posts: 2920
Location: North Carolina
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| Posted: Sun May 04, 2025 3:52 pm Post subject: Re: 12V Upgrade project: Where is the converter isolation stud? |
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| dsh1705 wrote: |
| My 95 has a stud on the floor near the water pump. |
Good data point; Winnebago was figuring things out on the first model for sure.
_________________
1991 Vanagon GL 2.1 AT Westfauxlia. "Frankie" Totaled https://www.thesamba.com/vw/forum/viewtopic.php?t=764510&highlight=carnage
1995 Eurovan Camper "Marzivan"
2020 GTI SE manual |
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RiversToTheSea
Samba Member
Joined: June 22, 2022
Posts: 63
Location: PNW
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| Posted: Sun May 04, 2025 4:05 pm Post subject: Re: 12V Upgrade project: Where is the converter isolation stud? |
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| mikemtnbike wrote: |
| dsh1705 wrote: |
| My 95 has a stud on the floor near the water pump. |
Good data point; Winnebago was figuring things out on the first model for sure. |
I am figuring things out on this thing too... |
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dsh1705
Samba Member
Joined: June 11, 2014
Posts: 114
Location: Seattle, WA
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| Posted: Sun May 04, 2025 4:07 pm Post subject: Re: 12V Upgrade project: Where is the converter isolation stud? |
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I suggest adding one. They are handy to have.
_________________
David
1705.net
95 EVC
ACU,098 |
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