---------------------------------------------------------- Zenith-List Digest Archive --- Total Messages Posted Wed 02/09/11: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:49 AM - Re: Removing tank filler during rebuild (ablebob) 2. 04:47 PM - Nuvite Polishing and Swirl Marks (William Dominguez) 3. 05:07 PM - Re: Nuvite Polishing and Swirl Marks (Phil Maxson) 4. 05:17 PM - Re: Nuvite Polishing and Swirl Marks (FLYaDIVE) 5. 05:57 PM - Re: Removing tank filler during rebuild (Dingfelder) 6. 06:37 PM - Re: Nuvite Polishing and Swirl Marks (William Dominguez) 7. 07:08 PM - Re: Nuvite Polishing and Swirl Marks (Jerry) 8. 07:54 PM - Thread lube for fuel filler (Tim Juhl) ________________________________ Message 1 _____________________________________ Time: 04:49:07 AM PST US Subject: Zenith-List: Re: Removing tank filler during rebuild From: "ablebob" This might not be the root cause of the problems with removing the filler necks but it might help. While building my own 701 tanks I decided to try and weld the filler neck directly to the aluminum tank. I thought they were aluminum but when the torch burnt the cladding off the neck I found out the truth. The neck part was made of steel with a coating resembling aluminum! Knowing you are dealing with steel and not an aluminum tube can change how you attack the problem. A magnet will quickly determine if you have the steel neck with aluminum flange. The way I removed the neck was to put the end of a piece of hardwood (flooring) cut to fit snugly against the inside of the neck. Then using a piece of leather to protect the neck used a pipe wrench to grab where the wood would prevent the tube from collapsing. Heat the flange to expand it helps. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=330255#330255 ________________________________ Message 2 _____________________________________ Time: 04:47:18 PM PST US From: William Dominguez Subject: Zenith-List: Nuvite Polishing and Swirl Marks Recently finished my right wing and decided that it is now a good time to polish it while being in the shop. I bought Nuvite G6 among all the necessary recommended consumables. It is producing a nice shine but with some very noticeable swirls. I'm using a regular compound polisher, the nuvite site recommends the cyclo polisher to remove the swirls, this is a very expensive product. Is there any other way to remove this swirls? Does a lower grade and the compound polisher works in removing the swirls? Thanks William Dominguez Zodiac 601XLB Plans Miami, Florida http://sites.google.com/site/billplane/ ________________________________ Message 3 _____________________________________ Time: 05:07:26 PM PST US From: Phil Maxson Subject: RE: Zenith-List: Nuvite Polishing and Swirl Marks I'm doing the same thing=2C except to my plane before the wings are reinsta lled prior to completing the upgrade. This will make the third time I've p olished it in it's lifetime=2C though it really should have been done a lot more frequently! I don't use any other grades of Nuvite except "C" and "S ". Prior to that I wet sand with 1500 grit sandpaper to remove any corrosi on. After that I use a Wool Pad to apply the "C" and my trusty Craftsman O rbital Sander with old flannel or sweatshirt material to apply the "S". No noticeable swirl marks. Phil Maxson 601XLB/Corvair Northwest New Jersey ________________________________ Message 4 _____________________________________ Time: 05:17:57 PM PST US Subject: Re: Zenith-List: Nuvite Polishing and Swirl Marks From: FLYaDIVE William: What you want is an ORBITAL polisher or sander. Polishing in a single axis rotation motion will give you swirls. Also you DO NOT want high speed, you want something around 600 RPM. I am not home right now but if you remind me I will look up the name and company where I purchased such an item for doing windshields. HEAT and rotation is your enemy keep the surface cool and use a random pattern... That is what the ORBITAL action is for. Barry ________________________________ Message 5 _____________________________________ Time: 05:57:12 PM PST US From: "Dingfelder" Subject: Zenith-List: Re: Removing tank filler during rebuild I used a product called "Bakerseal" from Aircraft Spruce on the filler threads, and have had no problem. It has anti-siezure properties, which is essential to avoid galling on aluminum to aluminum threads. It's very similar to ordinary teflon pipe thread sealant, with PTFE, but I don't know if the pipe thread sealant has the same anti-sieze properties. I flew 70 hours with this before disassembly, and the sealant was fully intact and the fillers threaded out easily. It doesn't set up, so I used silicone to glue the flange against the outer skin to keep the filler clocked correctly. Lynn Dingfelder Corry, PA 601XL / Corvair ________________________________ Message 6 _____________________________________ Time: 06:37:19 PM PST US From: William Dominguez Subject: Re: Zenith-List: Nuvite Polishing and Swirl Marks I already have an orbital waxer/polisher and an orbital sander finisher. Will experiment with them using flannels as Phil suggested. Thanks, William Dominguez ________________________________ From: FLYaDIVE Sent: Wed, February 9, 2011 8:14:00 PM Subject: Re: Zenith-List: Nuvite Polishing and Swirl Marks William: What you want is an ORBITAL polisher or sander. Polishing in a single axis rotation motion will give you swirls. Also you DO NOT want high speed, you want something around 600 RPM. I am not home right now but if you remind me I will look up the name and company where I purchased such an item for doing windshields. HEAT and rotation is your enemy keep the surface cool and use a random pattern... That is what the ORBITAL action is for. Barry ________________________________ Message 7 _____________________________________ Time: 07:08:30 PM PST US From: Jerry Subject: Re: Zenith-List: Nuvite Polishing and Swirl Marks William, I left you a reply at zenith.aero. I also left a link to some photos I took of my plane along with a discussion on swirl removal that took place late last year. In the discussion, I give the process that I used in polishing my plane. Hope this helps. The link is: http://www.zenith.aero/photo/before-2/prev?context=user Jerry N316JL 70hrs. ---- William Dominguez wrote: > Recently finished my right wing and decided that it is now a good time to polish it while being in the shop. ________________________________ Message 8 _____________________________________ Time: 07:54:20 PM PST US Subject: Zenith-List: Thread lube for fuel filler From: "Tim Juhl" I've started a new thread to discuss the topic of thread lubes for installing the fuel filler neck. If you followed the post on "Removing fuel filler neck" you'll see where I recently had to cut mine out while trying to get left wing apart for modification. I had a problem with threads galling when I first test fit the filler neck to one of my tanks and had to cut that neck out too and borrow the "big tap" from Zenith. I never thought I'd find myself doing it again. I had no problems with the neck on the first wing I modified but the second wouldn't budge. I cleaned the threads of both tanks out with the "big tap" and used Permatex High Performance thread sealer on both. I know the subject of thread sealers has been covered before but some time has passed and I thought it would be worthwhile to pose the question again. Before I reinstall the filler neck I need to decide what to use as a thread lube. So far I've heard 1.) Permatex High Performance Thread Lube (that's what I used last time with 50% success) 2.) Aviation Form-a-gasket 3.) EZ Turn (fuelube) & 4.) Bakerseal - I suspect #1 & 4 are similar in composition but can't say for sure. I'm not sure of the anti-galling properties of #2 although I have used it on fuel fittings before. #3 I have no experience with. At this point I'm leaning towards trying the EZ Turn - it's formulated for aviation fuels. Nonetheless, I'd like to hear from others about their experience with various products. Heaven forbid I ever have to open the leading edge again but if I do I'd like to do so without having to use a hacksaw. 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=330390#330390 ------------------------------------------------------------------------------------- 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.