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| Re: [GMCnet] carter electric fuel pump [message #272916 is a reply to message #272897] |
Mon, 02 March 2015 23:33   |
zhagrieb
Messages: 676
Registered: August 2009
Location: Portland Oregon
Karma: 0
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Senior Member |
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Steve,
The filters are from Summit Racing. Model SUM-G1507. The mechanical pump has been removed. I used one way valves at the output of each pump to prevent any backflow but they may be unnecessary. The pumps themselves may take care of that. I retained the original transfer switch but added a relay as the switch has only SPST contacts. Can send a diagram if interested.
Glenn
Glenn Giere, Portland OR, K7GAG
'73 "Moby the Motorhome" 26'
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| Re: [GMCnet] Carter electric fuel pump [message #315125 is a reply to message #272886] |
Sun, 26 March 2017 09:56 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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I usually install the 4070 with a by-pass hose and include a check valve in
the by-pass. The thinking here is that the 4070, due to it's internal
valving, is a bit restrictive, (a couple of psi worth), and the by-pass
hose helps with that pressure drop when the pump is not running. Just what
I do.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Mar 26, 2017 6:45 AM, "Johnny Bridges via Gmclist" <
gmclist@list.gmcnet.org> wrote:
Mr. Gasket and its clone. A bit cheaper, and a built in check valve. Just
don't use the supplied filter, use the Wix sub. It's now out in a house
branded version for a few dollars less as well.
--johnny
--
76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
"I forgive them all, save those who hurt the dogs. They must answer to me
in hell" - ol Andy, paraphrased
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| Re: [GMCnet] Carter electric fuel pump [message #315127 is a reply to message #315125] |
Sun, 26 March 2017 10:44 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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My experience with the Carter pump is that it is very restrictive when one
tries to pull fuel through the pump as it is vain driven. I have been using
that style pump since 1995.
On Sun, Mar 26, 2017 at 7:56 AM, James Hupy wrote:
> I usually install the 4070 with a by-pass hose and include a check valve in
> the by-pass. The thinking here is that the 4070, due to it's internal
> valving, is a bit restrictive, (a couple of psi worth), and the by-pass
> hose helps with that pressure drop when the pump is not running. Just what
> I do.
> Jim Hupy
> Salem, Or
> 78 GMC ROYALE 403
>
> On Mar 26, 2017 6:45 AM, "Johnny Bridges via Gmclist" gmclist@list.gmcnet.org> wrote:
>
> Mr. Gasket and its clone. A bit cheaper, and a built in check valve. Just
> don't use the supplied filter, use the Wix sub. It's now out in a house
> branded version for a few dollars less as well.
>
> --johnny
> --
> 76 26' Eleganza(?) with beaucoup mods and add - ons.
> Braselton, Ga.
> "I forgive them all, save those who hurt the dogs. They must answer to me
> in hell" - ol Andy, paraphrased
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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> GMCnet mailing list
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>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Carter electric fuel pump [message #315143 is a reply to message #315127] |
Mon, 27 March 2017 08:10 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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I installed a P4070 once without the bypass check valve and it did not go well. It would run out of gas in the carb when I accelerated heavily and the electric pump was turned off. I added a check valve bypass and took care of the problem.
Jim K. at Applied GMC has everything that you need in one kit. He has, or at least had, one of them ready to go on his table at the GMCMI rally yesterday.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] carter electric fuel pump [message #315145 is a reply to message #272886] |
Mon, 27 March 2017 08:42 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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Both the Carter and the MR Gasket pumps are rotary vane type. Both work well. The Carter makes more noise, but only marginally so, and at the back of the copach you won't notice it. In thwe ratrod pickup, I notice it.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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