electric fuel pump wiring

[JShot]

Question - schematic shows a 16ga black wire that powers the fuel selector valve. If a new electric pump is installed, is the wire big enough to power
the valve and the pump in the AUX position? Or do we run a "sister" wire, or a whole new wire? Coach has no house batts, so no relay set up back
there...
--
John Shotwell
Ridgeville Corners, OH
78 Royale Center Kitchen

 

[Ken B]

16 ga. will handle both. My electric fuel pump draws about a 1.4 amp and I have a 3 amp in series with it that has never blown.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana

 

[JShot]

Thanks, Ken - that's the answer I was hoping for...
--
John Shotwell
Ridgeville Corners, OH
78 Royale Center Kitchen

 

[jim kanomata1]

John,
Never use the rear power source for your engine support.
Not a bad idea to use a switch with an light to advise you when it is on.
Naturally when you turn the key off, it will go off if connected to the
correct source.

On Sat, Dec 12, 2020 at 7:02 AM John Shotwell via Gmclist <

> Thanks, Ken - that's the answer I was hoping for...
> --
> John Shotwell
> Ridgeville Corners, OH
> 78 Royale Center Kitchen
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502

 

[B52sRule]

I wired it so it will only come on with the ignition switch in the on
position.  I only use it for starting or if I suspect vapor lock. I use
a guarded toggle switch with a red indicator light built in.  I also
wired a rollover switch from a Ford/Mazda pickup. If I am unfortunate
enough to get hit while it is on the switch will turn the pump off.

> John,
> Never use the rear power source for your engine support.
> Not a bad idea to use a switch with an light to advise you when it is on.
> Naturally when you turn the key off, it will go off if connected to the
> correct source.
>
> On Sat, Dec 12, 2020 at 7:02 AM John Shotwell via Gmclist <

>
>> Thanks, Ken - that's the answer I was hoping for...
>> --
>> John Shotwell
>> Ridgeville Corners, OH
>> 78 Royale Center Kitchen
>>
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
--
Len and Pat Novak
1978 GMC Kingsley
The Beast II with dash lights that work and labels you can see!
Las Vegas, NV new email: B52srule
http://www.gmcmhphotos.com/photos/showgallery.php?cat=4375

www.bdub.net/novak/

 

[jim kanomata1]

Roll over switch makes lot of sensen to use..
Thank you.

 

[B52sRule]

Any Ford Ranger or Mazda equivalent in the men's mall will work. Usually
about $5.00.  Passengers side, on the inside firewall.

> Roll over switch makes lot of sensen to use..
> Thank you.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Len and Pat Novak
1978 GMC Kingsley
The Beast II with dash lights that work and labels you can see!
Las Vegas, NV new email: B52srule
http://www.gmcmhphotos.com/photos/showgallery.php?cat=4375

www.bdub.net/novak/