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Lew Gallagher
Joined: 04 Jan 2008
Posts: 402
Location: Greenville , SC
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 Posted: Mon Aug 13, 2012 7:33 am Post subject: Fuel tank selector knob |
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Hey guys,
Here's one that happened this weekend that gives me great pause. Wes came in after flying and when he shut down, he turned his selector to off and it just spun around on the shaft of the valve. This is the original Van's selector valve with an aftermarket knob. The red one shaped like an arrow. The original knob fits only one way, formed to the flat on the shaft. The aftermarket one has a set screw that can be installed either in the point of the knob, or in the heel, to give you an option on orientation.
Apparently the set screw loosened to the point that the knob just spins on the shaft. If one happened to run the selected tank all the way out before switching over (not good practice, but COULD happen), then the knob spun ... not good to say the least!
I've tightened the set screw, then run a lock set screw in behind it so that should take care of it. But I thought I'd send out a heads up. One little, very important set screw.
Later, - Lew
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_________________
non-pilot
crazy about building
NOW OFICIALLY BUILDER #40549
Fly off completed ! |
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philperry9
Joined: 23 Nov 2011
Posts: 381
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| Posted: Mon Aug 13, 2012 7:42 am Post subject: Fuel tank selector knob |
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Check this out:
http://www.vansairforce.com/community/showthread.php?t=79894
On Mon, Aug 13, 2012 at 10:33 AM, Lew Gallagher <lewgall(at)charter.net (lewgall(at)charter.net)> wrote:
[quote]--> RV10-List message posted by: "Lew Gallagher" <lewgall(at)charter.net (lewgall(at)charter.net)>
Hey guys,
Here's one that happened this weekend that gives me great pause. Wes came in after flying and when he shut down, he turned his selector to off and it just spun around on the shaft of the valve. This is the original Van's selector valve with an aftermarket knob. The red one shaped like an arrow. The original knob fits only one way, formed to the flat on the shaft. The aftermarket one has a set screw that can be installed either in the point of the knob, or in the heel, to give you an option on orientation.
Apparently the set screw loosened to the point that the knob just spins on the shaft. If one happened to run the selected tank all the way out before switching over (not good practice, but COULD happen), then the knob spun ... not good to say the least!
I've tightened the set screw, then run a lock set screw in behind it so that should take care of it. But I thought I'd send out a heads up. One little, very important set screw.
Later, - Lew
--------
non-pilot
crazy about building
NOW OFICIALLY BUILDER #40549
Fly off completed !
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=380833#380833
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rene(at)felker.com
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Tim Olson
Joined: 25 Jan 2007
Posts: 2882
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| Posted: Mon Aug 13, 2012 7:51 am Post subject: Fuel tank selector knob |
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"HONEY, REACH BACK BEHIND THE REAR SEATS AND GRAB ME A PLIERS....QUICK!!!!!"
I'm just happy to have the Andair valve...
do not archive
Tim
On 8/13/2012 10:33 AM, Lew Gallagher wrote:
| Quote: |
<lewgall(at)charter.net>
Hey guys,
Here's one that happened this weekend that gives me great pause. Wes
came in after flying and when he shut down, he turned his selector to
off and it just spun around on the shaft of the valve. This is the
original Van's selector valve with an aftermarket knob. The red one
shaped like an arrow. The original knob fits only one way, formed to
the flat on the shaft. The aftermarket one has a set screw that can
be installed either in the point of the knob, or in the heel, to give
you an option on orientation.
Apparently the set screw loosened to the point that the knob just
spins on the shaft. If one happened to run the selected tank all the
way out before switching over (not good practice, but COULD happen),
then the knob spun ... not good to say the least!
I've tightened the set screw, then run a lock set screw in behind it
so that should take care of it. But I thought I'd send out a heads
up. One little, very important set screw.
Later, - Lew
|
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AirMike
Joined: 27 Feb 2007
Posts: 514
Location: Nevada
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| Posted: Mon Aug 13, 2012 8:00 am Post subject: Fuel tank selector knob |
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Everyone bags on the cheap Vans handle, but it works. I ground off the little pimple at the fastening end - confusing! K.I.S.S.
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See you OSH '18
Q/B - sold. |
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Kellym
Joined: 10 Jan 2006
Posts: 1706
Location: Sun Lakes AZ
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| Posted: Mon Aug 13, 2012 8:22 am Post subject: Fuel tank selector knob |
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At the time I decided to go with Andair there had been several reports
of Van's valve failing in around 300 hours. I only have to think of John
Denver to know I want a dependable valve.
On 8/13/2012 9:00 AM, AirMike wrote:
-----
No virus found in this message.
Checked by AVG - www.avg.com
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Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
KCHD |
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Mauledriver(at)nc.rr.com
Guest
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| Posted: Mon Aug 13, 2012 8:35 am Post subject: Fuel tank selector knob |
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Yes, the Andair is a fine piece of equipment. Not only does the knob
key properly, but the asymmetrical mounting screw pattern insures that
the unit is installed (and re-installed) correctly. Having just opened
and closed up the tunnel for the condition inspection, I was reminded
how nice a feature that is.
It's a bit pricey but nice.
Bill "relaxing after first flight following first condition inspection"
Watson
On 8/13/2012 11:50 AM, Tim Olson wrote:
| Quote: |
"HONEY, REACH BACK BEHIND THE REAR SEATS AND GRAB ME A
PLIERS....QUICK!!!!!"
I'm just happy to have the Andair valve...
do not archive
Tim
On 8/13/2012 10:33 AM, Lew Gallagher wrote:
>
> <lewgall(at)charter.net>
>
> Hey guys,
>
> Here's one that happened this weekend that gives me great pause. Wes
> came in after flying and when he shut down, he turned his selector to
> off and it just spun around on the shaft of the valve. This is the
> original Van's selector valve with an aftermarket knob. The red one
> shaped like an arrow. The original knob fits only one way, formed to
> the flat on the shaft. The aftermarket one has a set screw that can
> be installed either in the point of the knob, or in the heel, to give
> you an option on orientation.
>
> Apparently the set screw loosened to the point that the knob just
> spins on the shaft. If one happened to run the selected tank all the
> way out before switching over (not good practice, but COULD happen),
> then the knob spun ... not good to say the least!
>
> I've tightened the set screw, then run a lock set screw in behind it
> so that should take care of it. But I thought I'd send out a heads
> up. One little, very important set screw.
>
> Later, - Lew
>
-----
No virus found in this message.
Checked by AVG - www.avg.com
|
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robin(at)PaintTheWeb.com
Guest
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| Posted: Mon Aug 13, 2012 8:43 am Post subject: Fuel tank selector knob |
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I had 2 RV's with standard valves and consistently smelled fuel on my hands after switching tanks. Replaced both with Andair fuel valves and never had a problem again. Then we built a 10 & an 8A went directly to the Andair fuel valve. Will not own an RV without one.
If you can minimize Fuel & WX issues you have a much better chance of becoming one of those old pilots hanging around the airport lying about your aviation exploits. The Andair valve gives me some added peace of mind.
Robin
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Bob Turner
Joined: 03 Jan 2009
Posts: 885
Location: Castro Valley, CA
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| Posted: Mon Aug 13, 2012 11:05 am Post subject: Re: Fuel tank selector knob |
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For newer builders:
RV-10 kits sold after about April 2008 have a different fuel selector handle design, "pull up then turn". These have thru bolts, no set screws.
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Bob Turner
RV-10 QB |
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