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Leaking tanks and green Loctite

 
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pitts_pilot(at)bellsouth.
Guest
PostPosted: Wed Feb 15, 2012 6:22 am    Post subject: Leaking tanks and green Loctite Reply with 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:
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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Hopperdhh(at)aol.com
Guest
PostPosted: Wed Feb 15, 2012 6:56 am    Post subject: Leaking tanks and green Loctite Reply with quote
Putting negative pressure on a fuel tank with a shop vac is a BAD idea! Fuel/air vapors are EXPLOSIVE! Shop vacs use some of the "air" taken in to cool the motor which has sparking brushes.

Dan Hopper RV-7A




In a message dated 2/15/2012 9:24:07 A.M. Eastern Standard Time, pitts_pilot(at)bellsouth.net writes:
Quote:
--> RV-List message posted by: Linn Walters <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

On 2/15/2012 9:06 AM, Linn Walters wrote:
Quote:
--> RV10-List message posted by: Linn Walters <pitts_pilot(at)bellsouth.net>

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:
> --> RV10-List message posted by:
> "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
>

ies ay - MATRONICS WEB FORUMS - List Contribution Web Site p;  


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at6c(at)bellsouth.net
Guest
PostPosted: Wed Feb 15, 2012 9:26 am    Post subject: Leaking tanks and green Loctite Reply with quote
Dan is right, you can use compressed air with a siphon tube (eg compressed air vacuum cleaner) to created a vacuum in the tank. You don't want a lot vacuum, you could collapse the tank.
Regards,
George

On 2/15/2012 8:55 AM, Hopperdhh(at)aol.com (Hopperdhh(at)aol.com) wrote: [quote]
Putting negative pressure on a fuel tank with a shop vac is a BAD idea! Fuel/air vapors are EXPLOSIVE! Shop vacs use some of the "air" taken in to cool the motor which has sparking brushes.

Dan Hopper RV-7A




In a message dated 2/15/2012 9:24:07 A.M. Eastern Standard Time, pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net) writes:
Quote:
--> RV-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



On 2/15/2012 9:06 AM, Linn Walters wrote:
> --> RV10-List message posted by: Linn Walters <pitts_pilot(at)bellsouth.net> (pitts_pilot(at)bellsouth.net)
>
> 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:
>> --> RV10-List message posted by:
>> "jchang10"<jc-matronics_rv10(at)jline.com> (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
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
> ies ay - MATRONICS WEB FORUMS - List Contribution Web Site p;




Quote:

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bartrim(at)gmail.com
Guest
PostPosted: Wed Feb 15, 2012 10:59 am    Post subject: Leaking tanks and green Loctite Reply with quote
Green locktite worked great for me. Use a cleaning agent first (brake clean or similar). DO NOT use a mechanical vacuum source of any kind! This can and likely will cause damage to your tank skins and you just don't need that much vacuum to do the job. Lightly grease the fuel caps O-ring to ensure a good seal, then attach a small tube to the vent and suck on it for a few seconds. That's more than enough. If the vacuum is left on it will just draw all the locktite completly through the leak. Green locktite is self-wicking so really doesn't need any vacuum to draw it into the leak, but a slight temporary vacuum will ensure it makes it through, but then remove vacuum and apply a another drop to the rivet head to ensure it is completly filled. Do not wipe off excess. Leave it a few hours, then wipe off.
This procedure worked for me.
Todd Bartrim
C-FSTB
13B RV9 On 2012-02-15 9:35 AM, "George Steube" <at6c(at)bellsouth.net (at6c(at)bellsouth.net)> wrote:[quote] Dan is right, you can use compressed air with a siphon tube (eg compressed air vacuum cleaner) to created a vacuum in the tank.  You don't want a lot vacuum, you could collapse the tank.
Regards,
George

On 2/15/2012 8:55 AM, Hopperdhh(at)aol.com (Hopperdhh(at)aol.com) wrote:
Quote:
 
Putting negative pressure on a fuel tank with a shop vac is a BAD idea!  Fuel/air vapors are EXPLOSIVE!  Shop vacs use some of the "air" taken in to cool the motor which has sparking brushes.
 
Dan Hopper RV-7A
 
 
 
 
In a message dated 2/15/2012 9:24:07 A.M. Eastern Standard Time, pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net) writes:
Quote:
--> RV-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



On 2/15/2012 9:06 AM, Linn Walters wrote:
> --> RV10-List message posted by: Linn Walters <pitts_pilot(at)bellsouth.net> (pitts_pilot(at)bellsouth.net)
>
> 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:
>> -->  RV10-List message posted by:
>> "jchang10"<jc-matronics_rv10(at)jline.com> (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
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
> ies ay              - MATRONICS WEB FORUMS            - List Contribution Web Site p;                        




Quote:



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