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pitts_pilot(at)bellsouth.
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 Posted: Wed Feb 15, 2012 6:22 am Post subject: Leaking tanks and green Loctite |
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I wish I had read Jason Kreiders email (tried the green Loctite and
failed) before I hit 'send'.
There must be some unknown (at this time) factor for those with success
using the green Loctite ..... if there really are any.
So, I pose the question ..... have any RVers fixed their leaking tanks
with the green Loctite???
Linn
On 2/15/2012 9:06 AM, Linn Walters wrote:
| Quote: |
There are reports of green Loctite filling small leaks in the fuel
tanks. I don't know if it works or not since I haven't gone down that
path yet.
Negative pressure from a shop vac may help as well as 'cleaning' by
using MEK or acetone.
Linn
On 2/15/2012 2:33 AM, jchang10 wrote:
>
> "jchang10"<jc-matronics_rv10(at)jline.com>
>
> I have weeping top rivets, too. I did the leak testing with a ballon,
> etc. after building the tanks, and all checked out at the time.
>
> Recently, I tried squishing proseal with some negative pressure in
> the tank. It seemed to help some. I repeated the positive tank
> pressure test with soapy water which revealed one weeping rivet but
> not some others with fuel.
>
> Clearly, the positive tank pressure test with just a balloon is not
> good enough to reveal all weeping rivets.
>
> Jae
>
> --------
> #40533 RV-10
> First flight 10/19/2011
> Phase 1 Done 11/26/2011
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=366336#366336
>
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Tim Olson
Joined: 25 Jan 2007
Posts: 2872
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| Posted: Wed Feb 15, 2012 7:03 am Post subject: Leaking tanks and green Loctite |
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Jason's email was pretty much right on.
I have had 1 rivet on the upper skin forward of the
spar that leaked very slightly...just enough to make
a blue spot around it. Admittedly, I often sit
and have stood many times on that area, so it
has taken a lot of abuse and I wasn't surprised
it leaked. I have anti-skid tape there too, to
encourage people to do the wrong thing. But,
I like the looks of it, and it keeps my
camera/ipad/bags/phone from slipping away when
I set it there, so I leave it.
I used green loctite after hearing about it here.
But, I didn't have luck on my first try. My
first try, I left the paint on the rivet..it was
just a tiny crack ring of paint. I tried to
force it through and hoped it wicked. It didn't work.
What did work is to use a razor to cut the paint and
pop the whole flake of the rivet head off, so I had
maybe <1mm around the rivet area removed. Then I
picked at the rivet head seam a little with the tip
of an exacto. Then I put a puddle of green loctite
on the area, and hooked up my air compressor to
a rubber hose with a blowgun handle, and pushed
down hard over the rivet and added a little (not
full blast) pressure with the blowgun. I repeated
this about 5 times, trying to force the stuff into
the seam. Once I was done, I let it all dry, then
added touch-up paint. It fixed it and has stayed
good now.
Tim
On 2/15/2012 8:19 AM, Linn Walters wrote:
| Quote: |
I wish I had read Jason Kreiders email (tried the green Loctite and
failed) before I hit 'send'.
There must be some unknown (at this time) factor for those with success
using the green Loctite ..... if there really are any.
So, I pose the question ..... have any RVers fixed their leaking tanks
with the green Loctite???
Linn
|
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http://www.matronics.com/Navigator?RV10-List |
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dave.saylor.aircrafters(a
Guest
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| Posted: Wed Feb 15, 2012 7:25 am Post subject: Leaking tanks and green Loctite |
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I've had some leaky rivets too, on both QB tanks. Loctite didn't help so I drilled out the rivets and replaced them with prosealed, closed-bulb blind rivets. That worked long enough on the left tank that I made the same repair on the right. Since then all the same rivets have started leaking on the left but the right is OK so far. I kind of expect them to leak too.
The next step is going to be to strip the paint and lay down a layer of something to make that area bulletproof. I'm thinking of a thin sheet of aluminum prosealed and vaccum bagged to the outer skin of the tank.
I really like the utility of being able to sit on the leading edge and not worry about stepping there now and then so for me it would be worth the effort to beef up that area.
Dave Saylor
AirCrafters
140 Aviation Way
Watsonville, CA 95076
831-722-9141 Shop
831-750-0284 Cell
On Wed, Feb 15, 2012 at 7:01 AM, Tim Olson <Tim(at)myrv10.com (Tim(at)myrv10.com)> wrote:
[quote] --> RV10-List message posted by: Tim Olson <Tim(at)myrv10.com (Tim(at)myrv10.com)>
Jason's email was pretty much right on.
I have had 1 rivet on the upper skin forward of the
spar that leaked very slightly...just enough to make
a blue spot around it. Â Admittedly, I often sit
and have stood many times on that area, so it
has taken a lot of abuse and I wasn't surprised
it leaked. Â I have anti-skid tape there too, to
encourage people to do the wrong thing. Â But,
I like the looks of it, and it keeps my
camera/ipad/bags/phone from slipping away when
I set it there, so I leave it.
I used green loctite after hearing about it here.
But, I didn't have luck on my first try. Â My
first try, I left the paint on the rivet..it was
just a tiny crack ring of paint. I tried to
force it through and hoped it wicked. Â It didn't work.
What did work is to use a razor to cut the paint and
pop the whole flake of the rivet head off, so I had
maybe <1mm around the rivet area removed. Then I
picked at the rivet head seam a little with the tip
of an exacto. Â Then I put a puddle of green loctite
on the area, and hooked up my air compressor to
a rubber hose with a blowgun handle, and pushed
down hard over the rivet and added a little (not
full blast) pressure with the blowgun. Â I repeated
this about 5 times, trying to force the stuff into
the seam. Â Once I was done, I let it all dry, then
added touch-up paint. Â It fixed it and has stayed
good now.
Tim
On 2/15/2012 8:19 AM, Linn Walters wrote:
| Quote: | --> RV10-List message posted by: Linn Walters <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)>
I wish I had read Jason Kreiders email (tried the green Loctite and
failed) before I hit 'send'.
There must be some unknown (at this time) factor for those with success
using the green Loctite ..... if there really are any.
So, I pose the question ..... have any RVers fixed their leaking tanks
with the green Loctite???
Linn
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pietflyr(at)bellsouth.net
Guest
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| Posted: Wed Feb 15, 2012 7:29 am Post subject: Leaking tanks and green Loctite |
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My RV-4 is a very old one - S/N 313, with the old proseal that was used back
in the 80's. I've had a number of weeping rivets. I've used green loctite
on them with generally good results. I just lay a drop of loctite on top of
the rivet making sure it covers the whole crack around the rivet. I let it
sit for about 5 minutes, then wipe up the excess. A couple of them have
required a second treatment, but that did the trick.
Jack Phillips
#40610 Wings (Flaps)
Raleigh, NC
--
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saolesen(at)sirentel.net
Guest
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| Posted: Wed Feb 15, 2012 7:48 am Post subject: Leaking tanks and green Loctite |
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I had a crack on the rib and skin of my gas tank. Of course I was worried that the area would leak and that I was totally screwed. I solved the problem by stop drilling the crack and using a Click Bond patch over the whole thing. The click bond guy at OSH said the glue was fuel proof and there would be no problems using that method as a fix. The crack was on the bottom of the tank and I have had no problems with it for over 3 years now. It seems to me that would be an easy way to fix a leaky rivet . Fairing in around the patch is necessary so this would work much better if the tank has not been painted, but if you're desperate..... Aircraft Spruce has them for 12.75.
Sheldon Olesen
N475 PV 355hrs
Sent from my iPad
On Feb 15, 2012, at 8:19 AM, Linn Walters <pitts_pilot(at)bellsouth.net> wrote:
| Quote: |
I wish I had read Jason Kreiders email (tried the green Loctite and failed) before I hit 'send'.
There must be some unknown (at this time) factor for those with success using the green Loctite ..... if there really are any.
So, I pose the question ..... have any RVers fixed their leaking tanks with the green Loctite???
Linn
On 2/15/2012 9:06 AM, Linn Walters wrote:
>
>
> There are reports of green Loctite filling small leaks in the fuel tanks. I don't know if it works or not since I haven't gone down that path yet.
> Negative pressure from a shop vac may help as well as 'cleaning' by using MEK or acetone.
> Linn
>
>
> On 2/15/2012 2:33 AM, jchang10 wrote:
>>
>>
>> I have weeping top rivets, too. I did the leak testing with a ballon, etc. after building the tanks, and all checked out at the time.
>>
>> Recently, I tried squishing proseal with some negative pressure in the tank. It seemed to help some. I repeated the positive tank pressure test with soapy water which revealed one weeping rivet but not some others with fuel.
>>
>> Clearly, the positive tank pressure test with just a balloon is not good enough to reveal all weeping rivets.
>>
>> Jae
>>
>> --------
>> #40533 RV-10
>> First flight 10/19/2011
>> Phase 1 Done 11/26/2011
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=366336#366336
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
>
>
|
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
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ScooterF15
Joined: 19 Jun 2006
Posts: 136
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| Posted: Wed Feb 15, 2012 7:57 am Post subject: Leaking tanks and green Loctite |
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I fixed a single leaking rivet on the bottom of my right QB tank with
green loctite.
http://forums.matronics.com/viewtopic.php?t=28361
I emptied the tank, cleaned the rivet (probably acetone and alcohol),
and used positive external pressure (a ballon on a rubber hose) to
push the green loctite in. It took a few hours and 2 tries to get it
right.
-Jim
N312JE
On Wed, Feb 15, 2012 at 9:19 AM, Linn Walters <pitts_pilot(at)bellsouth.net> wrote:
| Quote: |
I wish I had read Jason Kreiders email (tried the green Loctite and failed)
before I hit 'send'.
There must be some unknown (at this time) factor for those with success
using the green Loctite ..... if there really are any.
So, I pose the question ..... have any RVers fixed their leaking tanks with
the green Loctite???
Linn
On 2/15/2012 9:06 AM, Linn Walters wrote:
>
>
>
> There are reports of green Loctite filling small leaks in the fuel tanks.
> I don't know if it works or not since I haven't gone down that path yet.
> Negative pressure from a shop vac may help as well as 'cleaning' by using
> MEK or acetone.
> Linn
> On 2/15/2012 2:33 AM, jchang10 wrote:
>>
>>
>>
>> I have weeping top rivets, too. I did the leak testing with a ballon,
>> etc. after building the tanks, and all checked out at the time.
>>
>> Recently, I tried squishing proseal with some negative pressure in the
>> tank. It seemed to help some. I repeated the positive tank pressure test
>> with soapy water which revealed one weeping rivet but not some others with
>> fuel.
>>
>> Clearly, the positive tank pressure test with just a balloon is not good
>> enough to reveal all weeping rivets.
>>
>> Jae
>>
>> --------
>> #40533 RV-10
>> First flight 10/19/2011
>> Phase 1 Done 11/26/2011
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=366336#366336
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
|
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
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