Today's Message Index:
----------------------
1. 01:16 AM - Re: 701 fuel system design (jetboy)
2. 08:26 AM - Quick Fuel Drains (Dan Wilde)
3. 09:22 AM - Re: Needed: Zenith 701 gascolator 7E4-2 (bryanekholm)
4. 11:56 AM - Re: Quick Fuel Drains. (Gary Gower)
Message 1
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| Subject: | Re: 701 fuel system design |
There are a few guidelines I was told by an experimental builder, that all fuel
lines should run downhill to the lowest point, of a drainable location, thence
travel uphill to the carb inlet.
With the CZAW layout supplied, most of this was not possible due to the location
of the andair fuel selector on one side of the rear cabin meaning the fuel line
from the other side had to travel up and over to the valve.
I scrapped that layout, instead running the fuel lines down from the cabin wing
roots, behind the pillars, across the rear of the seat back, into the fuel selector
which is located just above the control tunnel mounted on the seat back
panel. There is an area there, inside the working arc of the control system,
that clears everything. The single fuel line exits the valve, runs down and across
to an ACS gascolator on the right side panel just aft of the main gear mountings.
Drain valve hangs through a hole there. mounting was easy with a P clamp
around each line connection. The otlet line runs along the floor on the right
side, thru the firewall and up to the carb. As I have a Jabiru, with a low
carb position and gravity feed I have not required any fuel pumps.
I found the location of the fuel selector, forward facing and between the seats,
easy to reach and operate - perhaps harder to see but easy to feel the correct
position, and I orientated it so the pointer is towards the tank selected (had
to re-label the faceplate)
Hope this explanation helps the planes too far away for a photo right now.
Ralph
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Ralph - CH701 / 2200a
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=243672#243672
Message 2
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| Subject: | Quick Fuel Drains |
I have had two of the Push-Type Quick Fuel Drains start leaking on me.
They will start to slowly drip and at first can be fixed by just
snapping the valve open and closed. However, this only lasts a short
time and then they drip again. On removal of the drain, I have found
that the little "O" ring has worn down and does not fit tight. Is there
a better drain valve type out there? I really don't want to have to
change these valves every year.
Dan Wilde
N948DW
Message 3
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| Subject: | Re: Needed: Zenith 701 gascolator 7E4-2 |
Bobkat,
I'll take one of the four.
Bryan Ekholm
5077 County Road 3 NW
Annandale, MN 55302
320-282-7042
ekholmbk@lakedalelink.net
Let me know how much for the postage and I'll send you a check.
Bryan Ekholm
--------
Bryan Ekholm
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=243727#243727
Message 4
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| Subject: | Re: Quick Fuel Drains. |
Hello Dan,
-
Both of the wing tanks valves leaked at the very beguining of flying my 701
,- my fault, probably I was not very carefull in cleaning (flushing) enou
gh the fuel system.- when I checked them I found very little debris.-
- We had to change also the lexan from the doors (fuel stained and cracke
d them).
I cleaned the valves-well,- and installed them.--
We-remove and carefully inspect-all the QFD's o rings (wings and-gasc
olator) every 100 hrs (or yearly),- not a big deal...-- -240 hrs la
ter (drained about 8 times a month) no more leaks.- Probably I am lucky.
-- I- have always some extra o rings (Viton type) as spares in my sma
ll airplane tool (plastic) box, never had to use them yet.
-
Saludos
Gary Gower.
Flying from Chapala, Mexico.
701 912S
--- On Tue, 5/12/09, Dan Wilde <dwilde@clearwire.net> wrote:
From: Dan Wilde <dwilde@clearwire.net>
Subject: Zenith701801-List: Quick Fuel Drains
<dwilde@clearwire.net>
I have had two of the Push-Type Quick Fuel Drains start leaking on me. The
y
will start to slowly drip and at first can be fixed by just snapping the va
lve
open and closed. However, this only lasts a short time and then they drip
again. On removal of the drain, I have found that the little "O" ring
has worn down and does not fit tight. Is there a better drain valve type o
ut
there? I really don't want to have to change these valves every year.
Dan Wilde
N948DW
=0A=0A=0A
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