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> Ground straps, Make me angry
emerygt350
post Aug 29 2024, 03:19 PM
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Brand new ground strap, installed clean and brushed on both transmission and body. Completely failed me. Wire brushed the neg to body. Checked the cables and replaced the post to starter cable (it was questionable ). Car still wouldn't turn over. Added a new 6 gauge cable from the negative terminal to the spot where the coil attaches to the tin work, turns over like a new car. Even my gauges are working better. Wth. Could it just be the transmission case itself?

I remember an argument about additional ground straps a couple years ago, but can't find it. Any reason not to just keep my aftermarket ground strap?
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emerygt350
post Aug 30 2024, 10:25 AM
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I see. I moved it to that spot on the shroud. All good. Much more comfortable with that spot.
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930cabman
post Aug 30 2024, 10:53 AM
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QUOTE(emerygt350 @ Aug 30 2024, 10:25 AM) *

I see. I moved it to that spot on the shroud. All good. Much more comfortable with that spot.



All well and good, BUT, how is the connection between the aluminum shroud and the case and the case with the chassis?
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davep
post Aug 31 2024, 11:36 AM
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QUOTE(930cabman @ Aug 30 2024, 12:53 PM) *

All well and good, BUT, how is the connection between the aluminum shroud and the case and the case with the chassis?

The electrical connection from the fan shroud to the engine case, and the engine case to the transmission case should be excellent, much better than the chassis itself. That is how the alternator is grounded to the chassis in all 914's.

There was some talk of current through bearings and gears, but IMHO that is totally insignificant. The fan housing bridges the two engine case halves and the case bolts do the same. If you keep the battery and transmission ground straps in place, then I see no possibility of problems
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emerygt350   Ground straps   Aug 29 2024, 03:19 PM
930cabman   50 years of corrosion It doesn't take much, b...   Aug 29 2024, 03:51 PM
emerygt350   Corrosion where? I put a brand new strap on when ...   Aug 29 2024, 04:14 PM
Superhawk996   Corrosion where? I put a brand new strap on when...   Aug 29 2024, 04:46 PM
emerygt350   Corrosion where? I put a brand new strap on whe...   Aug 29 2024, 04:56 PM
Superhawk996   I was measuring and it all looks good till you hi...   Aug 29 2024, 05:01 PM
930cabman   I was measuring and it all looks good till you h...   Aug 29 2024, 05:05 PM
brant   Corrosion on the unit body and between the panels ...   Aug 29 2024, 04:20 PM
Luke M   LOL... Funny how it's three Upstate NY guys he...   Aug 29 2024, 04:20 PM
anderssj   Thanks for the post! I would be interested to ...   Aug 29 2024, 04:26 PM
emerygt350   Thanks for the post! I would be interested to...   Aug 29 2024, 04:59 PM
emerygt350   I know, I actually do read your posts, but I went ...   Aug 29 2024, 05:10 PM
Superhawk996   So to answer your original question, I would not d...   Aug 29 2024, 07:04 PM
r_towle   Last time I dealt with this I ran a new cable from...   Aug 29 2024, 09:19 PM
Superhawk996   Last time I dealt with this I ran a new cable fro...   Aug 30 2024, 12:09 AM
914_teener   Soooooooo.....coil mounted to the tin. That's ...   Aug 29 2024, 09:30 PM
porschetub   Soooooooo.....coil mounted to the tin. That's...   Aug 29 2024, 10:37 PM
emerygt350   Interesting, so the same stock place on the body, ...   Aug 30 2024, 04:49 AM
Superhawk996   Not so sure I buy welding bearings and such, do ...   Aug 30 2024, 07:40 AM
VaccaRabite   I have an additional ground strap that goes from a...   Aug 30 2024, 05:24 AM
Geezer914   I to ran a ground strap from the alternator to the...   Aug 30 2024, 07:45 AM
davep   Added a new 6 gauge cable from the negative termi...   Aug 30 2024, 08:59 AM
emerygt350   [quote name='emerygt350' post='3164447' date='Aug...   Aug 30 2024, 09:07 AM
emerygt350   Interesting. My mustangs ground strap is on the b...   Aug 30 2024, 09:05 AM
Superhawk996   Interesting. My mustangs ground strap is on the ...   Aug 30 2024, 09:14 AM
dr914@autoatlanta.com   years ago I forgot to connect the trans ground str...   Aug 30 2024, 09:13 AM
930cabman   years ago I forgot to connect the trans ground st...   Aug 30 2024, 10:52 AM
emerygt350   years ago I forgot to connect the trans ground st...   Aug 30 2024, 01:38 PM
emerygt350   I see. I moved it to that spot on the shroud. All...   Aug 30 2024, 10:25 AM
930cabman   I see. I moved it to that spot on the shroud. Al...   Aug 30 2024, 10:53 AM
914_teener   I see. I moved it to that spot on the shroud. A...   Aug 31 2024, 11:27 AM
davep   All well and good, BUT, how is the connection bet...   Aug 31 2024, 11:36 AM
914_teener   All well and good, BUT, how is the connection be...   Aug 31 2024, 11:52 AM
930cabman   [quote name='davep' post='3164770' date='Aug 31 2...   Aug 31 2024, 02:13 PM
Literati914   regarding the grounding "strap" you guys...   Aug 30 2024, 10:26 AM
VaccaRabite   regarding the grounding "strap" you guy...   Aug 30 2024, 11:42 AM
emerygt350   regarding the grounding "strap" you gu...   Aug 30 2024, 01:39 PM
bkrantz   [quote name='VaccaRabite' post='3164638' date='Au...   Aug 30 2024, 08:41 PM
StarBear   regarding the grounding "strap" you gu...   Aug 31 2024, 07:14 AM
emerygt350   So good that my car turns over faster than ever be...   Aug 30 2024, 11:26 AM
emerygt350   Yeah, this is pretty short, 16 inches I think. Th...   Aug 31 2024, 06:39 AM
Literati914   Don't think the fan shrouds are aluminum. ...   Aug 31 2024, 11:35 AM
emerygt350   It is interesting that on all of my other projects...   Aug 31 2024, 02:43 PM
Spoke   Brand new ground strap, installed clean and brush...   Aug 31 2024, 04:14 PM
emerygt350   [quote name='emerygt350' post='3164447' date='Aug...   Aug 31 2024, 04:33 PM


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