Today's Message Index:
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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
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| Subject: | Re: Removing tank filler during rebuild |
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
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| Subject: | 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
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| Subject: | 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
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| Subject: | Re: 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 5
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| Subject: | 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
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| Subject: | Re: 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 <flyadive@gmail.com>
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
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| Subject: | Re: 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 <bill_dom@yahoo.com> 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
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| Subject: | Thread lube for fuel filler |
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
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