Today's Message Index:
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1. 03:44 AM - Re: Fuel Line Quick Disconnects (Jesse Saint)
2. 05:57 PM - Stick hits panel solution (Robin Marks)
Message 1
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| Subject: | Re: Fuel Line Quick Disconnects |
I very much agree with Rick here. Since you are already removing your
tunnel covers at the condition inspection to inspect everything else in
the tunnel (or should be, at least), the fuel filter is really not that
difficult to remove. Just make sure you put some paper towels under the
ends to catch the fuel that drains out. That area houses the only part of
your elevator control system that is safety-wired, which is a good reason
to inspect if carefully and not just spray a little LPS-2 on it. The
inspection panel on the side of the tunnel is not a bad idea, but
certainly not required. I would consider it somewhat careless to just use
the inspection panel to remove the filter at the condition inspection and
not remove the tunnel cover for the reason mentioned above, and to check
for fuel stains that would represent possible leaks elsewhere in the
tunnel fuel system.
Just my $.02, but quick disconnects to ease the inspection of the fuel
filter every year or even every 100 hours would certainly not be worth the
added risk IMHO. If one fails in a race car, you lose your race. If one
fails in your airplane, you very possibly lose your life.
do not archive
Jesse Saint
Saint Aviation, Inc.
jesse@saintaviation.com
www.saintaviation.com
352-427-0285
Rick Sked wrote:
>
>
> Les,
>
> My main reason is how often do you need to "quickly" disconnect a normally
> permanent setup. QD's are great for pulling the snow plow off and
> installing the forklift assembly on your tractor but why compromise a
> critical system such as a fuel supply line. Sure race vehicles use them
> for ease of R & Ring parts between runs or in the middle of a race but you
> should not have to pull your fuel filter except for scheduled maint. 50,
> 100 hour or the annual inspection. You will have plenty of time to remove
> it. The standard AN nut has only one moving part, the nut. Your QD
> fittings have springs, retaining rings and collars. All of these are
> points for failure. The flared fitting has a much better ability to seal
> over time than the QD fitting, FWIW, I have had two air QD's fail over the
> past few years, nothing major...just a slow leak,,,,but in a fuel supply
> system...pretty major. Just my two Penny's worth....The more moving parts,
> the greater chance for failure. I think 7 or 8 turns on a standard AN nut
> is plenty quick for me. I have never seen a quick disconnect on any
> aircraft fitting except for O2 filling valves, nitrogen pressure systems
> for EPU'sand fuel truck hookups.....everything else was just plain ol'
> AN fittings...now don't get me started on banjo fittings...way to many
> nights getting them to seal and in the long run...we always changed the
> banjo fitting....it had moving parts. :)
>
> Rick Sked
>
> 40185
>
>
> ----- Original Message -----
> From: "Les Kearney" <kearney@shaw.ca>
> To: rv10-list@matronics.com
> Sent: Sunday, April 20, 2008 8:02:38 PM (GMT-0800) America/Los_Angeles
> Subject: RE: RV10-List: Fuel Line Quick Disconnects
>
>
> Rick
>
>
> Why the aversion to quick disconnects?
>
>
> Cheers
>
>
> Les
>
>
> From: owner-rv10-list-server@matronics.com
> [mailto:owner-rv10-list-server@matronics.com] On Behalf Of Rick Sked
> Sent: April-20-08 8:30 PM
> To: rv10-list@matronics.com
> Subject: Re: RV10-List: Fuel Line Quick Disconnects
>
>
> Honestly, stay away from QD's. You want a good mechanical, nut to fitting
> connection. Make an access panel on one side of the tunnel large enough
> to ummm..."easily" get to your filter and pump. I have the Accuracy
> console and panel...nothing is easy to access after it's installed but my
> filter and pump are. I made a 12" by I think 8" access panel on the left
> side of the tunnel....so did Deem's and Scott Schmidt. My AN wrenches make
> it pretty easy to undo the nuts and remove the filter. This really should
> be a must do mod. Makes it very simple to access the stuff in the
> tunnel...even if you don't have the console setup.
>
> Rick Sked
>
> 40185
>
> do not archive
> ----- Original Message -----
> From: "Les Kearney" <kearney@shaw.ca>
> To: rv10-list@matronics.com
> Sent: Saturday, April 19, 2008 7:20:28 PM (GMT-0800) America/Los_Angeles
> Subject: RV10-List: Fuel Line Quick Disconnects
>
>
> Hi
>
>
> As I look at the tunnel in my -10, I am contemplating how I will be able
> to * easily * access the fuel pumps / filters that after the panel is
> installed. Keeping in mind John Coxs admonition to think about
> maintenance access when building, I have wondered about the use of quick
> disconnects on the fuel lines so the fuel pumps / filters can be easily
> removed / installed. I cant image how I would be able to connect these
> things in the future.
>
>
> I see that A/C Spruce sells experimental quick disconnects and that there
> are several racing sites that have what appear to be even higher quality
> units.
>
>
> Has anyone used these in their a/c? Are there any reasons why they should
> not be used?
>
>
> Inquiring minds need to know
>
>
> Les Kearney
>
> #40643
>
> C-GCWZ (reserved)
> get=_blank>http://www.matronics.com/Navigator?RV10-List
> p://forums.matronics.com blank>http://www.matronics.com/contribution
> http://www.matronics.com/contribution =================
Message 2
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| Subject: | Stick hits panel solution |
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