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| [GMCnet] Fuel Tank Lines Routing [message #180710] |
Fri, 17 August 2012 22:43  |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma:
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Senior Member |
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SHE is absolutely paranoid about giving out of gas, Especially in the GMC.
Hyper-especially when we aren't towing a dinghy. If we give out of gas,
as we did several times when I was refurbishing the GMC, including a couple
of gas tank R&R's back in '98 & '99. "How can you give out ...", "Can't
you see the gauges...", "What do you mean you can't depend on them...",
"What are we going to do now...", "I guess I'LL have to start watching the
gauges...", "Why didn't you stop in the last town...", "Let me drive -- I
WON'T give out...", "I'm never going any where with you again...", "This
ALWAYS happens...", "How much gas do we have left...", "Seems like a long
time since you filled up...", "There's a gas station...", "What do you mean
it's $0.01 cheaper 10 miles down the road...", "What do I care if it's got
ethanol in it...", "How...", "Why...", "When...", ...
It's probably best she doesn't know that I intentionally ran the tanks low
while coming home from her brother's last Saturday, with no toad.
Especially since there was NO gas in the Aux tank and <2 gallons in the
Main when I drained them today.
Yesterday I jacked the coach up, removed the tires, and spray washed the
underside in preparation for today's efforts. Today I re-sprayed the
underside to complete the job of removing the ATF Rustproofing and other
debris, drained the tanks, and began disconnecting hoses. The 30R7 hoses I
installed in '99 are in surprisingly good condition. If I could be sure
they're as good on top of the tanks, I'd retreat from this project. But
I've already got 25' of 3/8" Polyarmour and the 5/16" should be here
Monday, so I'm committed. SO, I've got questions:
Several folks have commented, and posted photos, of what they've done for
top of tank connections. I expect to copy those ideas, probably with
compression fittings at the senders. What I don't remember having seen is
how y'all have gotten the lines down off the tops of the tanks and where
the necessary connections were made. Maybe it was too painful to repeat?
Looks to me like it could be. Did you leave the off-tank ends straight or
curve them down the port sides of the tanks? Connectors there, or then
bend forward? I can't imagine being able to run the Main lines other than
off the port side, but the Aux lines might go straight forward over the #5
crossmember. I dread trying to make any connections in the narrow tunnel
with the filler tube, both because of the limited work space and the
interference with fitting the filler tube rubber connectors. How'd y'all
do them? I really don't want to follow the easier route of using rubber
connectors.
Thank goodness I took care of all the pressure lines forward of the
rear-mounted electric pumps when I installed EFI. All I really have to
fool with now are those on top of the tanks and the vent lines -- of which
there will be two to the front, by the way.
Suggestions of all sorts solicited!
Ken H.
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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