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ejessee
Joined: 18 Apr 2009
Posts: 60
Location: Raleigh, NC
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 Posted: Tue Aug 10, 2010 5:14 am Post subject: replacing fuel lines |
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I had originally planned to wait until my next conditional to replace my fuel lines (vintage 2006). With the rubber spacer issue, which was another item I was to handle at my next conditional, I have decided to do it now.
My 701 has no access port for the line connection to each tank. I was thinking in could make an access port. Anyone done this. Does top of wing or bottom of wing work best? Would it be easier to remove the root skin? I hesitate to do this because of all the painted rivets.
Aircraft Spruce sells "Alcohol resistant" fuel line by Bing. (see this link: http://www.aircraftspruce.com/catalog/appages/bingfuel.php ). Anyone ever use this? What is the best I can use?
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_________________
Ernest Jessee
N4931M |
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mikeweesner
Joined: 09 Aug 2008
Posts: 7
Location: nashville tn
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| Posted: Tue Aug 10, 2010 5:42 am Post subject: replacing fuel lines |
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On Tue, 10 Aug 2010 06:14:07 -0700
"ejessee" <eejessee(at)us.ibm.com> wrote:
| Quote: |
<eejessee(at)us.ibm.com>
I had originally planned to wait until my next
conditional to replace my fuel lines (vintage 2006).
With the rubber spacer issue, which was another item I
was to handle at my next conditional, I have decided to
do it now.
My 701 has no access port for the line connection to
each tank. I was thinking in could make an access port.
Anyone done this. Does top of wing or bottom of wing
work best? Would it be easier to remove the root skin?
I hesitate to do this because of all the painted rivets.
Aircraft Spruce sells "Alcohol resistant" fuel line by
Bing. (see this link:
http://www.aircraftspruce.com/catalog/appages/bingfuel.php
). Anyone ever use this? What is the best I can use?
try a rectangular opening on the bottom of the wing,replace by using blind nuts
--------
Ernest Jessee
N4931M
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=308181#308181
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bobkat
Joined: 07 Sep 2008
Posts: 143
Location: Bismarck, ND
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| Posted: Tue Aug 10, 2010 6:18 am Post subject: replacing fuel lines |
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When I built my wings, I used standard aluminum fuel lines right up to the
wing root. Then alcohol resistant rubber the rest of the way to the fuel
selector valve then aluminum from the valve through the firewall and
gascolater, then the Rotax fuel lines from there on. Unless I develop a
leak in a tank, hopefully I'll never need to get into the wing for any
repairs.
For the new builder I'd recommend using solid fuel lines in the wing, or if
you are going to all that work to open the wing to replace rubber fuel
lines, best to use solid lines that you'll never have to mess with again.
I doubt there's any weight difference and 'real' fuel lines could save a lot
of headaches further down the line.
--------------------------------------------------
From: "ejessee" <eejessee(at)us.ibm.com>
Sent: Tuesday, August 10, 2010 8:14 AM
To: <zenith701801-list(at)matronics.com>
Subject: replacing fuel lines
| Quote: |
I had originally planned to wait until my next conditional to replace my
fuel lines (vintage 2006). With the rubber spacer issue, which was
another item I was to handle at my next conditional, I have decided to do
it now.
My 701 has no access port for the line connection to each tank. I was
thinking in could make an access port. Anyone done this. Does top of
wing or bottom of wing work best? Would it be easier to remove the root
skin? I hesitate to do this because of all the painted rivets.
Aircraft Spruce sells "Alcohol resistant" fuel line by Bing. (see this
link: http://www.aircraftspruce.com/catalog/appages/bingfuel.php ).
Anyone ever use this? What is the best I can use?
--------
Ernest Jessee
N4931M
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=308181#308181
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bobkat
Joined: 07 Sep 2008
Posts: 143
Location: Bismarck, ND
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| Posted: Tue Aug 10, 2010 7:45 am Post subject: replacing fuel lines |
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Above post not too clear. I used solid fuel lines from the tanks up to the
wing roots, then ended them in a barbed nipple to run the rubber fuels lines
down to the fuel selector valve on the panel. When putting in solid lines
in the wings, be sure to leave appropriate loops so that vibration doesn't
cause a leak later on if they are put in too tight.
--------------------------------------------------
From: "BobKat" <bobkat(at)btinet.net>
Sent: Tuesday, August 10, 2010 9:14 AM
To: <zenith701801-list(at)matronics.com>
Subject: Re: replacing fuel lines
| Quote: |
When I built my wings, I used standard aluminum fuel lines right up to the
wing root. Then alcohol resistant rubber the rest of the way to the fuel
selector valve then aluminum from the valve through the firewall and
gascolater, then the Rotax fuel lines from there on. Unless I develop a
leak in a tank, hopefully I'll never need to get into the wing for any
repairs.
For the new builder I'd recommend using solid fuel lines in the wing, or
if you are going to all that work to open the wing to replace rubber fuel
lines, best to use solid lines that you'll never have to mess with again.
I doubt there's any weight difference and 'real' fuel lines could save a
lot of headaches further down the line.
--------------------------------------------------
From: "ejessee" <eejessee(at)us.ibm.com>
Sent: Tuesday, August 10, 2010 8:14 AM
To: <zenith701801-list(at)matronics.com>
Subject: replacing fuel lines
>
>
> I had originally planned to wait until my next conditional to replace my
> fuel lines (vintage 2006). With the rubber spacer issue, which was
> another item I was to handle at my next conditional, I have decided to do
> it now.
>
> My 701 has no access port for the line connection to each tank. I was
> thinking in could make an access port. Anyone done this. Does top of
> wing or bottom of wing work best? Would it be easier to remove the root
> skin? I hesitate to do this because of all the painted rivets.
>
> Aircraft Spruce sells "Alcohol resistant" fuel line by Bing. (see this
> link: http://www.aircraftspruce.com/catalog/appages/bingfuel.php ).
> Anyone ever use this? What is the best I can use?
>
> --------
> Ernest Jessee
> N4931M
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=308181#308181
>
>
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dlorrzen701(at)earthlink.
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| Posted: Tue Aug 10, 2010 1:00 pm Post subject: replacing fuel lines |
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Try George Race's website for access covers. Nice Kits, and easy to install.
David L. Orr
http://www.mrrace.com/Products/index.htm
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ruruny(at)aol.com
Guest
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| Posted: Thu Aug 12, 2010 7:26 pm Post subject: replacing fuel lines |
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Ernest,
I installed access panels under the wings while building, knowing it would be a challenge once
they were together. It will be a bit tougher but not impossible. I spent many evenings with a nibbler making
the doublers and they are not big enough to get your hand in. I can fit a screwdriver to tighten a clamp and
wrenches to loosen the fittings and take out the finger screen. I can use the old line to replace the new line
by pulling the new line through the root in the fuse. The only tough part would be getting the doubler inside
the wing. I would talk to George Race as David suggested as he has the panels and doublers ready.
He made a custom dataplate for my 701 and the workmanship is terrific. You can see in the photos
at the link, I made the doubler and used it as the guide to drill skin and locate the hole opening.
No reason why you could not do this.
http://www.701builder.com/00Wingshome.htm
Go to the inspection and access panels area.
Brian
www.701builder.com
My 701 has no access port for the line connection to each tank. I was thinking
in could make an access port. Anyone done this. Does top of wing or bottom of
wing work best? Would it be easier to remove the root skin?
[quote][b]
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jf3sb
Joined: 02 Dec 2007
Posts: 20
Location: Olathe, KS
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| Posted: Sat Aug 14, 2010 5:38 pm Post subject: Re: replacing fuel lines |
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Given all the questions about fuel additives nowadays, if I had a choice I'd run aluminum lines as already mentioned. You might not be able to do that though unless you open the whole back up the skin up.
I'd recommend putting in the small access holes on the underside of the wing, which are probably a good idea anyway. Then I'd run the clear polyurethane tubing (sold by Wicks and Spruce). Thats what I put in my wings 5 or 6 years ago. Lighter than rubber, not subject to vibrations, and I figured they were less susceptible to rot. I threw a couple scraps of the stuff in my mower gas can back then and they've been rattling around in there ever since. Checked them a few months ago and they've darkened a lot, but are still just as tough and pliable as they were new.
John Flavin
Olathe, KS
CH701, -still- building, but the end is in sight
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