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Adhesive?

 
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rv10(at)colohan.com
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PostPosted: Fri Aug 27, 2010 7:22 pm    Post subject: Adhesive? Reply with quote
I'm building my rv-10 horizontal stabilizer, at the stage where I start to rivet everything together starting from the nose and working backwards.

I just finished riveting the front spar to the skin, and as I went back over my work I noticed that I knocked the plastic elevator trim-tab cable bushing out of the hole in the front spar which it was clipped into.  My bucking bar must have pushed it out while I was riveting.


So now I have two problems:
a) I have a plastic bushing sitting inside a sealed up section of the front of my horizontal stabilizer, and not in the hole where it goes.


b) I'm afraid that if I get the bushing back into place it may just fall out again at some point in the future.
Photo evidence:
http://picasaweb.google.com/lh/photo/TZBw3PvMYBxQSVA-lTjOCKIqw9YRHPUJIjz5HHlTjwc?feat=directlink


Now, I think if I use one of those 4-pronged grabber things and a bunch of trial-and-error I can get this thing back into place.  But I'm not confident it will stay there.  I'd really like to put a dab of some sort of glue to hold it still.


I've seen people use tank sealant for this kind of thing on their blogs -- but I'd rather not mix up a whole batch to use just one dab.  I've also heard of folks using Permatex RTV on their planes, but I'm not sure if this is the kind of thing one would use it for (mostly I've heard of Permatex products being used in the engine compartment).  Seems perfect to me.  But before I do this (and then seal my work up inside a riveted horizontal stabilizer) -- is it okay to use a dab of RTV on my plane to help keep a plastic bushing in place, or is there a Better Way?


Thanks!
Chris
[quote][b]

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ceengland(at)bellsouth.ne
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PostPosted: Fri Aug 27, 2010 7:45 pm    Post subject: Adhesive? Reply with quote
On 8/27/2010 10:17 PM, Chris Colohan wrote:
Quote:
I'm building my rv-10 horizontal stabilizer, at the stage where I
start to rivet everything together starting from the nose and working
backwards.

I just finished riveting the front spar to the skin, and as I went
back over my work I noticed that I knocked the plastic elevator
trim-tab cable bushing out of the hole in the front spar which it was
clipped into. My bucking bar must have pushed it out while I was
riveting.

So now I have two problems:

a) I have a plastic bushing sitting inside a sealed up section of the
front of my horizontal stabilizer, and not in the hole where it goes.

b) I'm afraid that if I get the bushing back into place it may just
fall out again at some point in the future.

Photo evidence:

http://picasaweb.google.com/lh/photo/TZBw3PvMYBxQSVA-lTjOCKIqw9YRHPUJIjz5HHlTjwc?feat=directlink

Now, I think if I use one of those 4-pronged grabber things and a
bunch of trial-and-error I can get this thing back into place. But
I'm not confident it will stay there. I'd really like to put a dab of
some sort of glue to hold it still.

I've seen people use tank sealant for this kind of thing on their
blogs -- but I'd rather not mix up a whole batch to use just one dab.
I've also heard of folks using Permatex RTV on their planes, but I'm
not sure if this is the kind of thing one would use it for (mostly
I've heard of Permatex products being used in the engine compartment).
Seems perfect to me. But before I do this (and then seal my work up
inside a riveted horizontal stabilizer) -- is it okay to use a dab of
RTV on my plane to help keep a plastic bushing in place, or is there a
Better Way?

Thanks!

Chris
If it were mine, I'd pull it back into place with grabbers, bent safety

wire, coathangers, etc, then use any of the 'sensor-safe' RTV sealants
(non-corrosive) to lock it in. Having said that, unless the little lock
tangs are actually broken, it will probably stay in place when not being
abused by a bucking bar.

Charlie

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rv10(at)colohan.com
Guest
PostPosted: Sat Aug 28, 2010 9:35 pm    Post subject: Adhesive? Reply with quote
On Fri, Aug 27, 2010 at 8:43 PM, Charlie England <ceengland(at)bellsouth.net (ceengland(at)bellsouth.net)> wrote:
Quote:
If it were mine, I'd pull it back into place with grabbers, bent safety wire, coathangers, etc, then use any of the 'sensor-safe' RTV sealants (non-corrosive) to lock it in. Having said that, unless the little lock tangs are actually broken, it will probably stay in place when not being abused by a bucking bar.


Got a "lighted pick-up" from Home Depot, and some blue RTV from Auto Zone.  Worked like a charm, took me less than 2 minutes to fish it out, clip it back into place, and put on a dab of RTV to make extra sure it stays where it belongs.


Thank you!
Chris 

[quote][b]

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