Junction box

[fred estabrook]

Where is the Living Area Battery Pickup Junction Box located? Wiring
diagram shows it having a #1 Red wire from the rear solenoid to the box
and a 0 Red wire from the front solenoid to the box but I cant find the
box.
Fred Estabrook
76 Ell
Florence AZ

 

[emerystora]

There really isn’t a box. You have a 1976 so if you remove your converter (charger) located in the closet across from the side bath there is a opening on the back wall of the closet. On the outside wall of the motorhome there is a stud mounted to the frame which is where the ground to the frame for your converter is located. There is another insulated stud where the #9 and #1 wires connect.
At least that is how it is on my 1977. Yours might be different. You can also remove the oven and might be able to reach behind to the left and reach the wires.

Emery Stora
77 Kingsley
Frederick, CO

>
> Where is the Living Area Battery Pickup Junction Box located? Wiring
> diagram shows it having a #1 Red wire from the rear solenoid to the box
> and a 0 Red wire from the front solenoid to the box but I cant find the
> box.
> Fred Estabrook
> 76 Ell
> Florence AZ
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

 

[tyhardiman]

Here is a good link to help find the junction block:

http://www.gmcmhphotos.com/photos/g3916-location-of-the-hidden-12-volt-junction-block.html
--
Ty Hardiman, Norman, OK / Member FMCA-GMCMI-GMC Classics / August 1977 Kingsley TZE167V102390 / 26' / 403 / 3.55 / 16" Wheels / Quadrajet / HEI /
Previous Owners: Basil LeBlanc, Dan Ramker / Original Owner: William Strahm, Loveland, CO

 

[d c *mac* macdonald]

Hi, Ty.

Is that large nut in the fourth picture the infamous common negative point for the house battery wiring? Ken Burton told me that that connection was not making good contact on my coach. I wonder if it is far more accessible if I remove the gas range.

D C "Mac" Macdonald​
Amateur Radio K2GKK​
Since 30 November '53​
USAF and FAA, Retired​
Member GMCMI & Classics​
Oklahoma City, OK​
"The Money Pit"​
TZE166V101966​
'76 ex-Palm Beach​
k2gkk + hotmail dot com​
​
Cell: 405-642-7337​
​

________________________________
From: Gmclist on behalf of Ty Hardiman via Gmclist
Sent: Tuesday, February 19, 2019 13:44
To: gmclist
Cc: Ty Hardiman
Subject: Re: [GMCnet] Junction box

Here is a good link to help find the junction block:

https://nam03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.gmcmhphotos.com%2Fphotos%2Fg3916-location-of-the-hidden-12-volt-junction-block.html&data=02%7C01%7C%7C2e4e66f9dcbb40db229e08d696a51e7c%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636862033250609664&sdata=TnyZWz%2FdKfNhVh8%2F5DgqqrEKwWMe8hO7OjnrINz8fJQ%3D&reserved=0
--
Ty Hardiman, Norman, OK / Member FMCA-GMCMI-GMC Classics / August 1977 Kingsley TZE167V102390 / 26' / 403 / 3.55 / 16" Wheels / Quadrajet / HEI /
Previous Owners: Basil LeBlanc, Dan Ramker / Original Owner: William Strahm, Loveland, CO

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[tyhardiman]

Mac, I believe you are referring to the final picture which shows a stud mounted in plastic and attached to the aluminum exterior. This is the
positive run which connects the front and rear battery systems. Like Emory said, some coaches may have different routing or modifications over time.

The reason for a junction at this unfortunate location is to allow a power branch to the 12 volt house circuit fuse panel & converter located in the
"electrical closet". So this power stud has three connections, one to the rear motor generator, one to the front of the coach, and a short run to the
fuse panel. There is also a ground connection very close to this, you can likely find it by following the ground wire from your converter and see
where it ends up. It may just be a black wire screwed into the body frame.

I believe what Jim Hupy was suggesting in the related thread was to run a completely new positive wire connecting the front and rear of the coach at
the appropriate points, and then get inside to this junction block and remove just the wire going to the front of the coach. Tape it off at both ends
and abandon in place, but keep the other two wires on the post because that is how the house fuse block gets its power from the house batteries/motor
generator. This is assuming that the wire going to the front is damaged/shorted out and the wire going to the rear is still good.

And that power post is live, disconnect your batteries before getting in there with a wrench, otherwise sparks will fly!
--
Ty Hardiman, Norman, OK / Member FMCA-GMCMI-GMC Classics / August 1977 Kingsley TZE167V102390 / 26' / 403 / 3.55 / 16" Wheels / Quadrajet / HEI /
Previous Owners: Basil LeBlanc, Dan Ramker / Original Owner: William Strahm, Loveland, CO

 

[Jim Hupy]

Yes, that is kinda what I suggested. But, the old wire, with failed
insulation, is a hazard if not disconnected at each end, and properly
isolated and tagged. Simple reason being to prevent its use in the future
by some future owner who does not know the history behind what happened.
Don't just lop it off and leave it hanging loose. Bad stuff can and will
happen if you do things like that.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

On Tue, Feb 19, 2019, 3:25 PM Ty Hardiman via Gmclist <

> Mac, I believe you are referring to the final picture which shows a stud
> mounted in plastic and attached to the aluminum exterior. This is the
> positive run which connects the front and rear battery systems. Like Emory
> said, some coaches may have different routing or modifications over time.
>
> The reason for a junction at this unfortunate location is to allow a power
> branch to the 12 volt house circuit fuse panel & converter located in the
> "electrical closet". So this power stud has three connections, one to the
> rear motor generator, one to the front of the coach, and a short run to the
> fuse panel. There is also a ground connection very close to this, you can
> likely find it by following the ground wire from your converter and see
> where it ends up. It may just be a black wire screwed into the body frame.
>
> I believe what Jim Hupy was suggesting in the related thread was to run a
> completely new positive wire connecting the front and rear of the coach at
> the appropriate points, and then get inside to this junction block and
> remove just the wire going to the front of the coach. Tape it off at both
> ends
> and abandon in place, but keep the other two wires on the post because
> that is how the house fuse block gets its power from the house
> batteries/motor
> generator. This is assuming that the wire going to the front is
> damaged/shorted out and the wire going to the rear is still good.
>
> And that power post is live, disconnect your batteries before getting in
> there with a wrench, otherwise sparks will fly!
> --
> Ty Hardiman, Norman, OK / Member FMCA-GMCMI-GMC Classics / August 1977
> Kingsley TZE167V102390 / 26' / 403 / 3.55 / 16" Wheels / Quadrajet / HEI /
> Previous Owners: Basil LeBlanc, Dan Ramker / Original Owner: William
> Strahm, Loveland, CO
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>