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09-28-2008, 03:15 PM
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Join Date: Mar 2007
Location: Centennial, Colorado
Posts: 16
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Leaky Fuel Tank
Hi Guys, My fuel tank leaks so now I need to cut an inspection hole to get in there and fix it. Whats the best way to cut a hole large enough for this? Nibbler followed by a file is what I'm thinking but would like to hear any better ideas. THanks...........Jim
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09-28-2008, 05:31 PM
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Join Date: Mar 2005
Location: Dallas area
Posts: 10,762
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We use a 3" hole saw.
__________________
Mel Asberry, DAR since the last century.
EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
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09-28-2008, 06:28 PM
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Join Date: Feb 2005
Location: Huskerland, USA
Posts: 5,862
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Have you tried to fix the leaks? I'm an expert! 
__________________
RV-7 : In the hangar
RV-10 : In the hangar
RV-12 : Built and sold
RV-44 : 4 place helicopter on order. 
Last edited by Geico266 : 09-29-2008 at 04:51 AM.
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09-28-2008, 07:49 PM
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Join Date: Mar 2007
Location: Centennial, Colorado
Posts: 16
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Mel, I'll try that first, I just assumed that it would not be big enough to get in.
Thanks
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09-28-2008, 07:50 PM
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Join Date: Mar 2007
Location: Centennial, Colorado
Posts: 16
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Larry is there a way to fix a leak from the outside?
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09-28-2008, 08:04 PM
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Join Date: Feb 2005
Location: Huskerland, USA
Posts: 5,862
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Quote:
Originally Posted by JimB
Larry is there a way to fix a leak from the outside?
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Yes, do a search. There are several ways to fix it. Try that first before you take the tank off and cut a hole in it. 
The easiest one to try first is using Green (wicking) LocTite with a small vacuum being pulled on the tank.
Is it on the bottom or top?
__________________
RV-7 : In the hangar
RV-10 : In the hangar
RV-12 : Built and sold
RV-44 : 4 place helicopter on order.
Last edited by Geico266 : 09-29-2008 at 04:53 AM.
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09-29-2008, 07:43 AM
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Join Date: Mar 2007
Location: Centennial, Colorado
Posts: 16
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Larry, it's not installed yet. Still building my wings. The leaks are in the aft corners. The one one the inside I can get to thru the access panel but one of the outside corners leaks also. I also have a small leak where the skin meets the rear baffle near the center. I'll look for some green loctite and give it a try............Thanks
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09-29-2008, 08:57 AM
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Join Date: Feb 2005
Location: Huskerland, USA
Posts: 5,862
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Quote:
Originally Posted by JimB
Larry, it's not installed yet. Still building my wings. The leaks are in the aft corners. The one one the inside I can get to thru the access panel but one of the outside corners leaks also. I also have a small leak where the skin meets the rear baffle near the center. I'll look for some green loctite and give it a try............Thanks
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You need to hire the neighborhood 8 year old kid with little arms & hands and goop some more pro-seal in there!
Is it illegal to shanghai / force kids into helping build airplanes?  I may have stumbled onto something here! Child labor sweat shops building RV's!
__________________
RV-7 : In the hangar
RV-10 : In the hangar
RV-12 : Built and sold
RV-44 : 4 place helicopter on order.
Last edited by Geico266 : 09-29-2008 at 09:03 AM.
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09-29-2008, 09:31 AM
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Join Date: Jun 2006
Location: Port Orange, FL (7FL6)
Posts: 274
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during the construction of my tank I opted to install an end rib access hole on both sides of the tank for that very reason, But before you cut holes in your tank I would try the locktite trick. It seems to work just fine.
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Flying as of 1-12-2016!!!!!
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09-29-2008, 09:49 AM
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Join Date: Jul 2005
Location: North Atlanta
Posts: 1,120
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You can reach the outboard rib from the filler. Just used a long brush with thinned Proseal on it.
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Sid Lambert
RV-7 Sold
RV-4 - Flying - O-320 Fixed Pitch - Red over Yellow
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