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  #1  
Old 10-24-2011, 11:38 AM
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Lemmingman Lemmingman is offline
 
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Default Concerned about tank end ribs

My fluting on the end ribs of my right fuel tank have created some gaps between the flange and the skin that concern me. I might be making a mountain out of a mole hill, but these gaps make me wonder if I have too much space for ProSeal to properly fill.

Take a look and let me know what you think.


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Old 10-24-2011, 12:27 PM
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larrynew larrynew is offline
 
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Gil,
I'm no expert but I would be very worried about leaks from the fluting gaps. Seems like it would take much too much proseal to fill the gap. I'd call Van's before proceeding. Double check Van's instructions about buttering the flanges and read some of Rick Galatti's (sp?) posts about proseal. I didn't flute the end ribs on the one set I built.

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Old 10-24-2011, 04:16 PM
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Butter up those end rib flanges and put a nice fillet on the inside and the sealant should be able to stop any leaks.
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Old 10-24-2011, 04:42 PM
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GAHco GAHco is offline
 
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Question Your Fluting Pliers?

Your Fluting Pliers... uh... make huge gaps.

The ones I have keep the pinches much cleaner and tighter, you could do more crimps closer and sharper with better pliers. Get a hold of Avery, Cleaveland, or Brown tools, any one of them could better advise you.
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Old 10-24-2011, 05:51 PM
terrye terrye is offline
 
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Default Flutes

Look about the same as mine. As previous posters said put lots of proseal on the faying surfaces, and make a nice round fillet on the inside. Also put an overlap fillet on the outside. Search the forums under proseal. Rick Galati (Rick6a) has written some good advice and references workmanship standards.
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Old 10-24-2011, 06:00 PM
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If you flute between each set of rivets than it takes much smaller flutes to make the part conform. I would flatten those large ones out and make smaller ones at the additional locations as required. Then "butter" both rib and skin before assy, then add a nice fat fillet on the inside all the way around.
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  #7  
Old 10-24-2011, 06:28 PM
Kyle Boatright Kyle Boatright is online now
 
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Quote:
Originally Posted by Walt View Post
If you flute between each set of rivets than it takes much smaller flutes to make the part conform. I would flatten those large ones out and make smaller ones at the additional locations as required. Then "butter" both rib and skin before assy, then add a nice fat fillet on the inside all the way around.
Do this. You'll be happy.
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Old 10-24-2011, 08:46 PM
instructor_bill instructor_bill is offline
 
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Default nah

those will be fine with enough proseal. While my flutes weren't that large, most of my proseal on the end ribs were inside... in a fillet seal. If it doesn't get past the fillet seal, it won't matter how much proseal is in your flutes.
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Old 10-24-2011, 09:20 PM
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What Walt said.
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Old 10-24-2011, 10:35 PM
Trevor778 Trevor778 is offline
 
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You'll be fine, take a look at the gap that needs to be sealed in the corners where the end ribs meet the baffle. Vans tells us to put a generous glob there to prevent leaks.
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