Discovery at a rally.

[dean hanson]

Spent the weekend in Colfax California with the GMC 49ers and learned a
valuable lesson from a fellow GMCer. DON'T IGNORE THE GROUND. My house
batteries have under performed for the last two years and I was blaming the
batteries. A few minutes with Joe and his meter showed that 14 volts plus
went in the positive end of the two 6 volt batteries and just 12 volts
reached the ground end. An additional ground wire added and bingo, enough
battery power to run the heater fan overnight, much to our enjoyment.



Dean Hanson 75 Avion plus a SOB

Fremont Ca.

 

[sgltrac]

Check you chassis battery grounds as well. Main from battery to block,
cradle to body.

Sully
Bellevue wa

On Mon, Nov 12, 2018 at 8:47 AM Dean Hanson
wrote:

> Spent the weekend in Colfax California with the GMC 49ers and learned a
> valuable lesson from a fellow GMCer. DON'T IGNORE THE GROUND. My house
> batteries have under performed for the last two years and I was blaming the
> batteries. A few minutes with Joe and his meter showed that 14 volts plus
> went in the positive end of the two 6 volt batteries and just 12 volts
> reached the ground end. An additional ground wire added and bingo, enough
> battery power to run the heater fan overnight, much to our enjoyment.
>
>
>
> Dean Hanson 75 Avion plus a SOB
>
> Fremont Ca.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

 

[Ron Clark]

Where did you add the extra ground wire, Dean?

RonC

On Mon, 12 Nov 2018 08:46:29 -0800 "Dean Hanson"

> Spent the weekend in Colfax California with the GMC 49ers and learned
> a
> valuable lesson from a fellow GMCer. DON'T IGNORE THE GROUND. My
> house
> batteries have under performed for the last two years and I was
> blaming the
> batteries. A few minutes with Joe and his meter showed that 14 volts
> plus
> went in the positive end of the two 6 volt batteries and just 12
> volts
> reached the ground end. An additional ground wire added and bingo,
> enough
> battery power to run the heater fan overnight, much to our
> enjoyment.
>
>
>
> Dean Hanson 75 Avion plus a SOB
>
> Fremont Ca.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

Ron & Linda Clark
North Plains, ORYGUN
1978 Eleganza II

 

[richshoop]

EVERY time you are being mystified electrically, especially 12Vdc stuff. Be sure to check both the positive and negative side of the load! While you are trying to power the device, check the voltage at the device. Marli (my wife) and I did not have a coach furnace for the Colfax rally because...... 40year old ground connection was bad. So embarassed, but you don't have to!!!!
If you are adding any kind of additional load, you run the risk of overloading the ground wire connection. Be careful. Use oversize wire, proper crimps, terminated properly, with proper fasteners.

>
>
> Spent the weekend in Colfax California with the GMC 49ers and learned a
> valuable lesson from a fellow GMCer. DON'T IGNORE THE GROUND. My house
> batteries have under performed for the last two years and I was blaming the
> batteries. A few minutes with Joe and his meter showed that 14 volts plus
> went in the positive end of the two 6 volt batteries and just 12 volts
> reached the ground end. An additional ground wire added and bingo, enough
> battery power to run the heater fan overnight, much to our enjoyment.
>
>
>
> Dean Hanson 75 Avion plus a SOB
>
> Fremont Ca.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org