---------------------------------------------------------- Zenith601-List Digest Archive --- Total Messages Posted Tue 08/04/09: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:13 PM - Re: Re: Sealing fuel tank fitting () 2. 03:59 PM - Re: Re: Sealing fuel tank fitting (Jim Belcher) ________________________________ Message 1 _____________________________________ Time: 03:13:05 PM PST US From: Subject: Re: Zenith601-List: Re: Sealing fuel tank fitting I wouldn't say you're wrong, but you might want to look at how much work it is to remove a tank with a pinhole in it; particularly if you made your leading edge skin in one piece. Even with a two-piece skin, what with the rivets AFT of the spar, you either have to cut a bunch of access plates, open up about 5 rivets back on each rib, or get used to hearing rivet stubs rattling around in there. Me, I'd rather err on the side of overkill than have to open the wing up again. (Don't ask me how I know) Paul R ----- Original Message ----- From: dalemed To: zenith601-list@matronics.com Sent: Monday, August 03, 2009 3:00 PM Subject: Zenith601-List: Re: Sealing fuel tank fitting > A 2 part mix sounds like an epoxy, which seems like overkill for an application like mine. It seems like I should be able to use a non-hardening Permatex form-a-gasket type of stuff. Am I wrong? Thanks! -------- Dale Flying Cessna 170B Building Zenith CH650 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=255836#255836 http://www.matronics.com/Navigator?Zenith601-List http://www.matronics.com/contribution ________________________________ Message 2 _____________________________________ Time: 03:59:41 PM PST US From: Jim Belcher Subject: Re: Zenith601-List: Re: Sealing fuel tank fitting On Tuesday 04 August 2009 17:11, paulrod36@msn.com wrote: > I wouldn't say you're wrong, but you might want to look at how much work it > is to remove a tank with a pinhole in it; particularly if you made your > leading edge skin in one piece. Even with a two-piece skin, what with the > rivets AFT of the spar, you either have to cut a bunch of access plates, > open up about 5 rivets back on each rib, or get used to hearing rivet stubs > rattling around in there. Me, I'd rather err on the side of overkill than > have to open the wing up again. (Don't ask me how I know) You can improve your chances of success by pressurizing the tank with air after sealing but before installation. Paint the seams with a soap-bubble mixture to find leaks. This doesn't work bad on Zenith's tanks after installing the fuel gauge floats. -- ============================================ Do not archive. ============================================ Jim B Belcher BS, MS Physics, Math, Computer Science A&P/IA Retired aerospace technical manager ============================================ ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message zenith601-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Zenith601-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/zenith601-list Browse Digests http://www.matronics.com/digest/zenith601-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.