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[GMCnet] Installing a fuel return line for a Howell/GM EFI. [message #333341] Mon, 11 June 2018 09:34 Go to next message
BobDunahugh is currently offline  BobDunahugh   United States
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
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Senior Member
On my 78. I installed the fitting in the steel fuel tank fill pipe. The 73 has a rubber hose next to the steel fuel fill pipe for a tank fill vent. Any reason to not tie into that vent hose? I don't see a real down side to that. Bob Dunahugh
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Re: [GMCnet] Installing a fuel return line for a Howell/GM EFI. [message #333343 is a reply to message #333341] Mon, 11 June 2018 09:55 Go to previous message
James Hupy is currently offline  James Hupy   United States
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Registered: May 2010
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Senior Member
Bob, that 1/2 " rubber hose that goes to the filler neck is a "burp" back
hose that serves to cancel the gas station filler nozzle when the tanks
near the full level. No reason why you cannot put your fuel return line
there. I usually drill and tap the filler pipe and use a threaded hose barb
that matches the return line size. I have used that a number of times. Some
here have picked places that were more suited to putting the return fuel
into one tank or the other for reasons more suited to their preferences of
using one tank or the other. Pays yer money, and takes yer choice, I guess.
More important to be properly supported and leak free I would think.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

On Mon, Jun 11, 2018, 7:35 AM Bob Dunahugh wrote:

> On my 78. I installed the fitting in the steel fuel tank fill pipe. The 73
> has a rubber hose next to the steel fuel fill pipe for a tank fill vent.
> Any reason to not tie into that vent hose? I don't see a real down side to
> that. Bob Dunahugh
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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