---------------------------------------------------------- Zenith-List Digest Archive --- Total Messages Posted Tue 02/08/11: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:56 PM - Re: Removing tank filler during rebuild (Tim Juhl) 2. 05:15 PM - Re: Re: Removing tank filler during rebuild (Paul Mulwitz) ________________________________ Message 1 _____________________________________ Time: 04:56:45 PM PST US Subject: Zenith-List: Re: Removing tank filler during rebuild From: "Tim Juhl" Boy! Did I speak too soon. I finished the right wing and hauled the left into my shop to begin the modification process yesterday. I used my trusty piece of shaped oak to remove the fuel filler neck but could only get it to budge a little. I tried everything I could think of to get it out with no avail. All I succeeded in doing was breaking my tool and practicing some words I haven't used in awhile. In the end, I used a hacksaw blade and cut it out (see pix). Fortunately the threads in the fuel tank are salvageable so I asked Zenith to send me the "Big Tap" when the sent me a new filler neck. The other tank came apart without any trouble so I have no clue as to what caused the problem with this one. Those darn aluminum to aluminum threads are a real pain. I hope I never have to open the leading edge again! Tim -------- ______________ CFII Champ L16A flying Zodiac XL - Jabiru 3300A Tearing wings apart for modification Read this topic online here: http://forums.matronics.com/viewtopic.php?p=330223#330223 Attachments: http://forums.matronics.com//files/236a_446.jpg ________________________________ Message 2 _____________________________________ Time: 05:15:54 PM PST US From: Paul Mulwitz Subject: Re: Zenith-List: Re: Removing tank filler during rebuild Hi Tim, I didn't have to remove the neck from my fuel tanks. I screwed them down and mounted the whole assembly under the skin. It worked out just fine. Aluminum is lousy material to thread and use threaded. In the case of steel threads in aluminum engine heads you need to use anti-seize compound to make the thread operation work. Rotax calls for a different kind of goup, but the general idea is the same. I've been working on the spar carry-through. I decided to learn how to do solid riveting. It turns out it is child's play. My first 5/32 rivet set perfectly in a 2/4 aluminum bar and was just as nasty to remove as the ones from the factory. I didn't have the right "Set" so I ordered it from Spruce along with a few different sized rivets. I decided to go this route because of the new row of rivets on top of the carry through. I felt bolts would be a problem there for a couple of reasons. The would be impossible to inspect and/or cause problems for legs resting on the carry-through. My heavy metal bars arrived today via UPS and I already have one of the 4 cut and loosely attached to the new assembly. So far it is just pilot holes, but a little more work and it will be proper sized holes for riveting. Have fun, Paul On 2/8/2011 4:54 PM, Tim Juhl wrote: > --> Zenith-List message posted by: "Tim Juhl" > > Boy! Did I speak too soon. I finished the right wing and hauled the left into my shop to begin the modification process yesterday. I used my trusty piece of shaped oak to remove the fuel filler neck but could only get it to budge a little. I tried everything I could think of to get it out with no avail. All I succeeded in doing was breaking my tool and practicing some words I haven't used in awhile. In the end, I used a hacksaw blade and cut it out (see pix). Fortunately the threads in the fuel tank are salvageable so I asked Zenith to send me the "Big Tap" when the sent me a new filler neck. > > The other tank came apart without any trouble so I have no clue as to what caused the problem with this one. Those darn aluminum to aluminum threads are a real pain. I hope I never have to open the leading edge again! > > Tim > > -------- > ______________ > CFII > Champ L16A flying > Zodiac XL - Jabiru 3300A > Tearing wings apart for modification > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=330223#330223 > > > Attachments: > > http://forums.matronics.com//files/236a_446.jpg > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message zenith-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Zenith-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/zenith-list Browse Digests http://www.matronics.com/digest/zenith-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.