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Replacing Fuel Level Senders...

 
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Matt Dralle
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Joined: 08 Nov 2005
Posts: 26320
Location: Livermore CA USA
PostPosted: Tue Jun 08, 2010 8:00 pm    Post subject: Replacing Fuel Level Senders... Reply with quote
Dear Listers,

Well, okay, so I've resigned myself to replacing my Princeton capacitance fuel level probes with the standard S&W float probea from Van's. Has anyone replaced these without removing the wing or the fuel tank from the airplane? Basically just doing it from underneath the airplane through the gap afforded by the fuselage-to-wing fairing? Is this even possible?

I know that it won't be possible to remove the Princeton units without destroying them, but can the S&W probes be installed? If I can do it without pulling the fuel tanks or wings off, then I might just tackle this sooner than later. But if the tanks have to come off, then I might procrastinate more and enjoy the great flying weather. That being said, I'm going in for paint in either August or October and it has to be complete before then either way.

Arg, why couldn't those Princeton probes just work? Geeze, how much do you have to spend to get a product that works. How frustrating.

So, how accurate are the bending dimensions on the Van's plans for the S&W float arms? I've got no way to test or trial fit these units so its a one-shot deal. I've already pulled the probes out once, I definitely don't want to do this again!

Thanks for the insight...
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com - Matt's RV-8 Construction Blog
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: Enjoying The Fruits of 2500 Hours of Labor!

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wlull(at)cox.net
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PostPosted: Wed Jun 09, 2010 6:54 am    Post subject: Replacing Fuel Level Senders... Reply with quote
Matt,
 
I have removed each tank from my flying RV-7A with little trouble other than a bit of scuffing on the arms.  I installed my floats in back of the second bay because I have floptubes so I don't know if you can install in place or not.  The tanks came off in under twenty minutes and back on in about the same.  Nothing to worry to much about.
 
I installed the floats using proseal as the rubber gaskets leaked and were the reason I had to remove the tanks.  I agree do it now before you paint.
 
Good luck and regards.

 
Bill Lull
RV7A N91WL
Flying!!!
On Tue, Jun 8, 2010 at 9:00 PM, Matt Dralle <dralle(at)matronics.com (dralle(at)matronics.com)> wrote:
Quote:
--> RV7-List message posted by: Matt Dralle <dralle(at)matronics.com (dralle(at)matronics.com)>

Dear Listers,

Well, okay, so I've resigned myself to replacing my Princeton capacitance fuel level probes with the standard S&W float probea from Van's.  Has anyone replaced these without removing the wing or the fuel tank from the airplane?  Basically just doing it from underneath the airplane through the gap afforded by the fuselage-to-wing fairing?  Is this even possible?

I know that it won't be possible to remove the Princeton units without destroying them, but can the S&W probes be installed?  If I can do it without pulling the fuel tanks or wings off, then I might just tackle this sooner than later.  But if the tanks have to come off, then I might procrastinate more and enjoy the great flying weather.  That being said, I'm going in for paint in either August or October and it has to be complete before then either way.

Arg, why couldn't those Princeton probes just work?  Geeze, how much do you have to spend to get a product that works.  How frustrating.

So, how accurate are the bending dimensions on the Van's plans for the S&W float arms?  I've got no way to test or trial fit these units so its a one-shot deal.  I've already pulled the probes out once, I definitely don't want to do this again!

Thanks for the insight...
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com - Matt's RV-8 Construction Blog
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
s.com/Navigator?RV7-List" target="_blank">http://www.matronics.com/Navigator?RV7-List
ronics.com/" target="_blank">http://forums.matronics.com
           -Matt Dralle, List Admin.
=====




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