1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Rx7 1985 gsl Battary cable

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Old Jul 1, 2025 | 11:56 AM
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Rx7 1985 gsl Battary cable

Hey I have had my Rx7 for 5 years now and only been able to drive it the first year I got it. I have replaced alternator, belts, fuel pump and changed spark plugs/wires to ngk, not sure what else needs replacing the battery cables are my only thing I haven’t replaced and they look really frayed does anyone know what I should buy or what kind I should go with?
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Old Jul 1, 2025 | 12:08 PM
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From: NM, Rio Rancho
We are going to need a lot more info. Symptoms? Does it turn but not start? Does it click when you turn the key? You did tell us what you have tried.
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Old Jul 1, 2025 | 12:20 PM
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Originally Posted by kencunm
We are going to need a lot more info. Symptoms? Does it turn but not start? Does it click when you turn the key? You did tell us what you have tried.
when I get home I can send a video of me trying to start it also has a switch connected to the fuel pump to turn it on maybe it’s just pulling to much power but I will send photos and videos of trying to start it. Thankyou so much for replying so fast!
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Old Jul 1, 2025 | 01:28 PM
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This is what it sounds like
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Old Jul 1, 2025 | 01:34 PM
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Rx7 new ideas

I would like to get a new electric fan, and figure out what all these wires on top of the motor are for
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Old Jul 1, 2025 | 01:38 PM
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Rx7

Had it turned over just now and the belt to the alternator started smoking I feel it was to tight…
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Old Jul 1, 2025 | 01:42 PM
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Rx7

Bad sound
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Old Jul 1, 2025 | 07:06 PM
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Rx7

I think my belt for the alternator is incorrect or needs replaced tried starting her up and instantly was hearing a winning sound and flipped my fuel pump switch on and pressed the gas after turning the key started her up in a idle of 500 and the belt to the alternator was smoking. I would show video but I couldent upload it.
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Old Jul 1, 2025 | 07:21 PM
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For new battery cables, take the old ones off and label the connections on the starter and cable itself. You'll need to get aftermarket cables. I like the ones with the built-in ends. I used ones from Tractor Supply. The positive is pretty straight forward. For the negative, I used one main one and another two foot one that runs from the battery to the connection on the driver's side strut tower. This is what the factory one does. I also ran another ground from the alternator big bolt to the struct tower.
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Old Jul 2, 2025 | 06:49 AM
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From: Lake Wylie, N.C.
I used ones from RockAuto. the negative is a two piece that divides at the ground point on the driver shock tower and the positive goes to the starter and has a short lead that connects to the OEM harness for the alternator juice.

https://www.rockauto.com/en/moreinfo...192294&pt=2500
https://www.rockauto.com/en/moreinfo...192294&pt=2500

positive
https://www.rockauto.com/en/moreinfo...192294&pt=2500

Last edited by t_g_farrell; Jul 2, 2025 at 06:52 AM.
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