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Old 02-04-2019, 03:04 PM   #21
Smooth_One
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Default Re: Installed battery cutoff switch today.

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The amount and length of your cabling makes the gauge of 4, potentially more problematic. In the end, you will do it your way, but, you did ask for opinions.

Do you think the 4 gauge cable would get warm after a while or your just talking about low amps for the size?
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Old 02-04-2019, 03:12 PM   #22
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Default Re: Installed battery cutoff switch today.

I obviously didn't install mine but mine is located under the dash.

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Old 02-04-2019, 04:05 PM   #23
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Default Re: Installed battery cutoff switch today.

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I obviously didn't install mine but mine is located under the dash.

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Looks good. I just don't like seeing the switch on the other side of the firewall.
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Old 02-04-2019, 04:26 PM   #24
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Default Re: Installed battery cutoff switch today.

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Do you think the 4 gauge cable would get warm after a while or your just talking about low amps for the size?
I don't think that would be an issue. The use of 4 gauge wire is perfect for 12 volts, but becomes current limiting at 6 volts when cranking an engine to start. Beyond starting, the 4 gauge is OK for everything else.

You may be just fine starting, but as soon as age starts its process of oxidation it will creep up on you and some day it'll be cranking too slow and you'll be wondering why. If you stay with the 4 gauge, just be mindful of the issue. Keep connections pristine.
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Old 02-04-2019, 04:32 PM   #25
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Default Re: Installed battery cutoff switch today.

Not familiar with seat mounting in a sedan, I don't know if you have a seat riser like in the trucks, rdstrs etc. The front of the seat riser just below your left leg would be ideal, as it is close to the battery, and minimal cabling would be needed.

By the way, I like your sedan. What is the story with it. History....
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Old 02-04-2019, 11:14 PM   #26
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Default Re: Installed battery cutoff switch today.

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Not familiar with seat mounting in a sedan, I don't know if you have a seat riser like in the trucks, rdstrs etc. The front of the seat riser just below your left leg would be ideal, as it is close to the battery, and minimal cabling would be needed.

By the way, I like your sedan. What is the story with it. History....
Thanks for the input!
My Tudor came from just north of Detroit from my father in-law. Heís owned it since 1962. He drove it a ton back then and then he bought a few more Aís and had one or two Model Tís so the Tudor got parked for around 30 years and hasnít been touched til I got it.
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Old 02-05-2019, 03:01 PM   #27
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Default Re: Installed battery cutoff switch today.

I mounted mine thru the floor under the driers seat, using #2 copper wire. I also added another ground cable over to the tranny mount.
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Old 02-07-2019, 10:20 AM   #28
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Default Re: Installed battery cutoff switch today.

Nice install Smooth_One! The PO installed the same one in my '31 coupe. To save opening the hood so often I fabricated an extension rod that reaches the switch and protrudes out a little under the hood (there was adequate clearance without having to modify the hood).
installed.jpg

underhood.jpg

knob.jpg

rod.jpg

bend.jpg


I drilled and tapped the switch handle to accommodate the eyebolt and put a dab of JBWeld (not shown) on it to keep it snug. I bent a 1/4" threaded rod - note: I ground off the threads before heating and bending, experience told me that threads sometimes tear through the stock when bent. Then I covered it with 1/4" shrink tubing to hide the threads. Finally one more stainless steel eyebolt to make an outside support.
Purists will balk, I'm ok, I drive it for me, not others.
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Old 02-07-2019, 10:43 AM   #29
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Default Re: Installed battery cutoff switch today.

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Nice install Smooth_One! The PO installed the same one in my '31 coupe. To save opening the hood so often I fabricated an extension rod that reaches the switch and protrudes out a little under the hood (there was adequate clearance without having to modify the hood).
Attachment 387864

Attachment 387865

Attachment 387866

Attachment 387867

Attachment 387868



I drilled and tapped the switch handle to accommodate the eyebolt and put a dab of JBWeld (not shown) on it to keep it snug. I bent a 1/4" threaded rod - note: I ground off the threads before heating and bending, experience told me that threads sometimes tear through the stock when bent. Then I covered it with 1/4" shrink tubing to hide the threads. Finally one more stainless steel eyebolt to make an outside support.
Purists will balk, I'm ok, I drive it for me, not others.

Very nice. Thanks for sharing! Simple but clean fab work there.
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Old 02-07-2019, 10:47 AM   #30
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Default Re: Installed battery cutoff switch today.

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I mounted mine thru the floor under the driers seat, using #2 copper wire. I also added another ground cable over to the tranny mount.



I did run another 4 gauge ground cable from a spot i cleaned down to bare metal on the frame and then to a clean spot on the bell housing. I'm also going to run another one on the passenger side in the same spots for peace of mind.
We''ll see how it works.
The starter spins waaaayyy faster with the ground attached! Very noticeable difference!
When I get some worn engine parts replaced I will replace all motor mounts and clean the frame to regain some lost frame ground.
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Old 02-07-2019, 10:56 AM   #31
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Default Re: Installed battery cutoff switch today.

I have mine under the hood instead of the cab. They both have pro's and con's...what ever works for you! Looks great!
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Old 02-07-2019, 11:02 AM   #32
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Default Re: Installed battery cutoff switch today.

What am I doing wrong... how do I get my jpgs to show without having to login?
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Old 02-07-2019, 11:10 AM   #33
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Default Re: Installed battery cutoff switch today.

When you log on, click on Remember me? Then you automatically "log on" when you access the site.
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Old 02-07-2019, 11:21 AM   #34
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Default Re: Installed battery cutoff switch today.

Yes, I understand that, but just casually browsing anyone can see Smooth_One's photos, mine you either have to click on the jpg name or sign in. There must be a set-up option I've missed.
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Old 02-07-2019, 11:41 AM   #35
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Default Re: Installed battery cutoff switch today.

Clever addition Cave!
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Old 03-30-2019, 08:32 PM   #36
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Default Re: Installed battery cutoff switch today.

[QUOTE=BillLee/Chandler, TX;1723380]Mine is mounted under the floor on a bracket I made from 1/8" aluminum, screwed to the bottom of the wood cross piece. I then made an extension to the shaft where the handle mounts so that the handle is just above the level of the carpet under the front edge of the seat. Yes, a hole drilled through the wood floorboard behind the steel cross member. Very unobtrusive and easily accessed.



With the switch there, I can easily disconnect the entire system from the battery (which I do as I exit the car).



Problems of concern that the switch being easily accessible address:


* A stuck starter switch ( have seen happen).
* Stuck brake light switch.
* Reverse drain through alternator when not running.
* Short behind the dash panel.
* Theft prevention.
* Forgotten headlights or turn signals.



(I'm sure there are others, I invite contributions. :-) )


Edit to add a picture showing the switch through floor board, no carpets installed at that time.[/QUOTE

With regards to the reverse drain to the Alternator, explanation please? I have one of these switches and also have an alternator...does this mean I need to shut off the switch every time I drive the car and stop somewhere like a car show? I had to get a jump start today and wondered if this could have happened
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Old 03-30-2019, 08:38 PM   #37
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Default Re: Installed battery cutoff switch today.

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Yes, I understand that, but just casually browsing anyone can see Smooth_One's photos, mine you either have to click on the jpg name or sign in. There must be a set-up option I've missed.
Maybe his are external links rather than stored in the Ford Barn forum.
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Old 03-31-2019, 11:44 AM   #38
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Default Re: Installed battery cutoff switch today.

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With regards to the reverse drain to the Alternator, explanation please? I have one of these switches and also have an alternator...does this mean I need to shut off the switch every time I drive the car and stop somewhere like a car show? I had to get a jump start today and wondered if this could have happened
The alternator regulator draws a few milliamps at all times. Same for electronic cutout regulators and turn signal e-flashers. Shouldn't be a battery drain issue unless the car is parked for an extended period (weeks/months).
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Old 03-31-2019, 01:09 PM   #39
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Default Re: Installed battery cutoff switch today.

At least you put the switch in the ground cable. So many put it on the hot side which leaves the part from the switch to the hot battery post exposed to shorting.
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