| Re: [GMCnet] 1/2" tank vent steel tube source needed. [message #167716 is a reply to message #167701] |
Fri, 27 April 2012 01:58   |
Chuck Garton
Messages: 54
Registered: June 2006
Karma:
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Member |
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Both my coaches (73 & 77) came with the 1/2" vent tube. It had 3/8"
hose fittings for the rear tank and forward tank and a 1/2" fitting in
front. I am the one that replaced the rubber tubing with 3/8" steel
tubing and kept the vent lines separate all the way to the top of the
left front fender well. NAPA sells 3/8" steel tubing in 25' rolls. As
Rob said this really sped up the refueling process. To see what I did
to my fuel system go to www.gmcpc.org and click on shadetree and third
fuel tank installation.
Chuck Garton
77 Kingslet 455
Ridgecrest, CA
On Thu, Apr 26, 2012 at 9:09 PM, Rob Mueller <robmueller@iinet.net.au> wrote:
> Steve,
>
> OK, I interpret the manual to mean that the vent lines are 3/8" ID rubber
> from the tank fuel level sender to the solid tubes #40 and the "T" #38.
>
> IIRC on Double Trouble these lines were rubber.
>
> Somewhere in the back of my mind I seem to remember someone suggesting that
> the tank vents be separated into two tubes and reconnected as close to the
> filler vent as possible. It sped up filling the tanks and reduced the
> burping.
>
> Is this the vent they were talking about and is memory working well?
>
> Regards,
> Rob M.
>
> -----Original Message-----
> From: Steve Southworth
>
> Part ID #32 on page 12-2
>
> A friend said he had some 1/2" aluminum tube, coil that I could use. I
> suspect your stretch straighting would work on that. Is AL tube suitable
> for use in a fuel system, especially with ethanol?
>
> BTW the run from that tube (#32) up to the fuel filler, on my '74, is 1/2"
> rubber hose. It had a "factory installed" kink that reduced the effective
> diameter by more than half. I will be bending up a tube section to replace
> that rubber hose section.
> --
> Steve Southworth
> 1974 Glacier TZE064V100150 (for workin on)
> 1975 Transmode TZE365V100394 (parts & spares)
> Palmyra WI
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