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  #1  
Old 11-10-2015, 12:38 PM
TCONROY's Avatar
TCONROY TCONROY is offline
 
Join Date: Jul 2009
Location: Wilsonville, OR
Posts: 456
Default Tip-Up Seal to prevent water leaking

I have been flying my -7 since April and on just a couple occasions have found some drops of water on the floor carpet under the forward tip-up structure. I am sure it is coming through the scalloped holes on the forward panel support (circled red in picture). What are other builders doing to seal those holes? It seems they are to large to fill with RTV...

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  #2  
Old 11-10-2015, 01:28 PM
DGlaeser DGlaeser is offline
 
Join Date: May 2005
Location: Rochester Hills, MI
Posts: 919
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I filled those with a sealant (don't recall exactly what at the moment), and used a continuous seal where the tip-up closes on the frame.
The 2 spots I have been unable to seal completely are the hinge points. Be sure nothing water sensitive is below those locations.
If you come up with a good idea - be sure to share
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RV-7A - Eggenfellner H6, GRT Sport EX, EIS4000, 300XL, SL30, TT Gemini, PMA6000, AK950L, GT320,
uAvionix Echo ADSB in/out with GRT Safe Fly GPS
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  #3  
Old 11-10-2015, 01:38 PM
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jmjula jmjula is offline
 
Join Date: Oct 2005
Location: Portland, OR
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I used pro-seal when I riveted that skin on, and a couple of the biggest holes opened and I have yet to go fill them again. For the hinges, I made a special aluminum bracket that is RTV sealed in place to completely block all water from exiting aft of the sub-panel. I still have to deal with the water forward of that panel with some sort of plastic or fiberglass.
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  #4  
Old 11-10-2015, 04:18 PM
starkw1 starkw1 is offline
 
Join Date: Feb 2005
Location: Plymouth, MN
Posts: 44
Default Sealing triagular holes

I made some rubberized fiberglass by impregnating some fiberglass tape with a silicone adhesive. After curing, cut out some triangular pieces to cover the holes, and glue them underneath the forward panel.


Warren
RV-7
Plymouth, MN
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  #5  
Old 11-10-2015, 04:41 PM
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Fred.Stucklen Fred.Stucklen is offline
 
Join Date: Oct 2006
Location: Brooksville, FL
Posts: 446
Default Tip-up Seal

This is what I did:






Be sure that the drip edge is sealed to the bulkhead prior to riveting. As you can see above, I used pop-rivets, and used them to hold the velcro in place as well.



Quote:
Originally Posted by TCONROY View Post
I have been flying my -7 since April and on just a couple occasions have found some drops of water on the floor carpet under the forward tip-up structure. I am sure it is coming through the scalloped holes on the forward panel support (circled red in picture). What are other builders doing to seal those holes? It seems they are to large to fill with RTV...

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RV-7A N924RV Flying (2000 Hrs & counting)
RV-6A N926RV 875 Hrs (Sold)
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  #6  
Old 11-10-2015, 06:27 PM
jay bell jay bell is offline
 
Join Date: Sep 2013
Location: Olds, AB
Posts: 86
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I covered the scallop holes with aluminum tape before applying the rubber channel seal. My canopy leaks a bit, although it is not related to the scallops. I always carry a canopy cover when travelling in case I need to leave the plane outside in a downpour.
Jay
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  #7  
Old 11-11-2015, 02:49 PM
Rupester Rupester is offline
 
Join Date: Dec 2005
Location: Mahomet, Illinois
Posts: 2,195
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I filled the scallop holes with the gray "high torque" RTV. So far, so good.
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RV-9A Tip-up; IO-320 D2A
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  #8  
Old 11-16-2015, 08:57 AM
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TCONROY TCONROY is offline
 
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Location: Wilsonville, OR
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Great, thanks for the tips guys!
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