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10-07-2017, 08:23 AM
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Join Date: Feb 2005
Location: Chesterfield, Missouri
Posts: 4,514
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Quote:
Originally Posted by roadrunner20
Almost 4 years now still not leaking.
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Going on 5 years since build and recently have several weeping rivets left tank at bottom aft flange. Not serious, just enough to make blue ring around rivets.
Have feeling this will require tank removal and aft baffle surgery to repair. It would be hard to get tank dry and push sealant uphill successfully, but considering it.
Install of aft baffle is tricky, probably pushed too much sealant down to get adequate seal. Right tank is ok - so far.
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RV-12 Build Helper
RV-7A...Sold #70374
The RV-8...Sold #83261
I'm in, dues paid 2019 This place is worth it!
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10-07-2017, 02:01 PM
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Join Date: Feb 2005
Location: Bay Pines, FL (based @ KCLW)
Posts: 1,955
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Quote:
Originally Posted by David-aviator
Going on 5 years since build and recently have several weeping rivets left tank at bottom aft flange. Not serious, just enough to make blue ring around rivets.
Have feeling this will require tank removal and aft baffle surgery to repair. It would be hard to get tank dry and push sealant uphill successfully, but considering it.
Install of aft baffle is tricky, probably pushed too much sealant down to get adequate seal. Right tank is ok - so far.
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Hi David,
My post was related to my previous ones in which I've gone 4 years with the syringe fixed weeper and it's still not leaking.
I've now been flying my RV 11 years now.
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Danny "RoadRunner" Landry
Morphed RV7(formally 7A), N20DL, PnP Pilot
1190+ hours
2019 Donation Paid
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10-08-2017, 10:55 PM
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Join Date: May 2011
Location: Calgary, AB
Posts: 147
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Syringe method
Due to a bee plugging the vent to my left tank and pullng almost full vacuum, I ended up with two weeping rivets, likely lifted a thin spot on the sealant. Dam glad the tank did not collapse!
Anyway, I had read this thread and thought of a bit of a modification to the syringe and loktite method. My weep was very small on each of the two rivets only getting a little blue after a week or so.
I took a 1/2? syringe and cut the tip down to about 1/16? and then stacked 3 - 1/4? o-rings glued to the syringe and together. This configuration allowed me to squeeze the loktite as hard as I could push on the syringe and the o-rings squeezed down and sealed very well.
For what it is worth I used red loktite as I only had red and blue in the tool box and red seemed a little thinner. Repeated 3 times with a day or more between to allow for the loktite to cure. Seems to have solved the problem.
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Regards,
Darin
C-GULF RV-7 located in Calgary, AB
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10-09-2017, 04:51 AM
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Join Date: May 2014
Location: KBVY Massachusetts
Posts: 1,100
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Quote:
Originally Posted by Darin Watson
I took a 1/2? syringe and cut the tip down to about 1/16? and then stacked 3 - 1/4? o-rings glued to the syringe and together. This configuration allowed me to squeeze the loktite as hard as I could push on the syringe and the o-rings squeezed down and sealed very well.
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what glue did you use> What were the O-rings made of?
thanks!
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Flying RV-8 N880BC
2019 Dues - happily paid.
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10-09-2017, 04:08 PM
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Join Date: May 2011
Location: Calgary, AB
Posts: 147
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Syringe method
Quote:
Originally Posted by Saville
what glue did you use> What were the O-rings made of?
thanks!
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Just used Gorilla glue and standard rubber o-rings. By the 3rd go the glue was cracking but the seal was fine.
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Regards,
Darin
C-GULF RV-7 located in Calgary, AB
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09-05-2019, 02:45 PM
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Join Date: Jun 2018
Location: CHESHIRE, MA
Posts: 226
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Quote:
Originally Posted by Steve Melton
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Steve, any chance you still have these pictures? I have a weeping rivet on the bottom of my left tank. Also, will this procedure work on a bottom rivet?
Thanks, Jim
__________________
Jim
Purchased July 2019: RV-6 0320 Whirlwind Ground Adjustable Prop
"We can porpoises?" -- Leo Farnsworth
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09-05-2019, 02:53 PM
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Join Date: Feb 2005
Location: Bay Pines, FL (based @ KCLW)
Posts: 1,955
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Quote:
Originally Posted by Pilotjim77
Steve, any chance you still have these pictures? I have a weeping rivet on the bottom of my left tank. Also, will this procedure work on a bottom rivet?
Thanks, Jim
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Yes. It will work on a bottom rivet. Mine has been leak free for almost 6 years now.
__________________
Danny "RoadRunner" Landry
Morphed RV7(formally 7A), N20DL, PnP Pilot
1190+ hours
2019 Donation Paid
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09-08-2019, 01:24 PM
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Join Date: Jun 2018
Location: CHESHIRE, MA
Posts: 226
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Quote:
Originally Posted by roadrunner20
Yes. It will work on a bottom rivet. Mine has been leak free for almost 6 years now.
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Thanks, Danny.
__________________
Jim
Purchased July 2019: RV-6 0320 Whirlwind Ground Adjustable Prop
"We can porpoises?" -- Leo Farnsworth
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09-17-2019, 11:01 AM
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Join Date: Dec 2007
Location: Beverly NJ
Posts: 17
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weeping fual tank rivet
I had a couple leaking rivets . I didn't use Loctite I used thick CA glue. I pressured it in with air pressure from the outside. My rv7a n838wt was finished in 2005 tanks still not leaking. Although I think using the proseal
should work I didn't think I could thin it enough.
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