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mattaebersold
Joined: 12 Dec 2018 Posts: 51 Location: Washington, United States
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Posted: Mon Feb 08, 2021 8:10 am Post subject: What is this large ground wire near the battery for? |
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Rebuilding a 931, and I see this wire near the battery... looks like a main ground, but the battery terminals are already there... this is just hanging out.
- does anyone know what this is for?
- how would I ground this? Just add a large end piece and bolt it to the body?
_________________ PARTSTASH: www.partstash.com
1980 931
1991 Japanese Classic Mini
2000 740i
2006 530xi Wagon |
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931-1979
Joined: 13 May 2016 Posts: 5 Location: Austria
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Posted: Mon Feb 08, 2021 4:16 pm Post subject: |
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I think it´s the + to the startermotor _________________ 931/1 - 1979
924 2,0 - 1982 |
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Paul
Joined: 02 Nov 2002 Posts: 9491 Location: Southeast Wisconsin
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Posted: Tue Feb 09, 2021 2:04 am Post subject: |
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Oxygen sensor? _________________ White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy. |
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mattaebersold
Joined: 12 Dec 2018 Posts: 51 Location: Washington, United States
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Posted: Tue Feb 09, 2021 6:06 am Post subject: |
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931-1979 wrote: | I think it´s the + to the startermotor |
The starter did work before I tore down the engine, so I don't think it's that _________________ PARTSTASH: www.partstash.com
1980 931
1991 Japanese Classic Mini
2000 740i
2006 530xi Wagon |
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mattaebersold
Joined: 12 Dec 2018 Posts: 51 Location: Washington, United States
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Posted: Tue Feb 09, 2021 6:07 am Post subject: |
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Paul wrote: | Oxygen sensor? |
Interesting, so I should just put a connector on it and ground it to the body? Or somehow splice it into the negative battery terminal? _________________ PARTSTASH: www.partstash.com
1980 931
1991 Japanese Classic Mini
2000 740i
2006 530xi Wagon |
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chuck21401
Joined: 20 Feb 2005 Posts: 532 Location: Annapolis, MD
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Posted: Wed Apr 07, 2021 8:55 am Post subject: |
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It might be a stretch but I've read that some have run an additional ground wire from the block to body ground near the negative battery terminal to help with mysterious grounding issues. This was written up in the most recent issue of Excellence magazine.
So another clue might be....where does the other end of that wire go? _________________ 1981 Porsche 931 w/S1 engine & g31 transmission. Water-cooled intercooler |
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