RV-9A: Right Fuel Tank - 1/26/2007
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 Getting ready to rivet the T-406B fuel cap flange
I’m determined to keep the mess to a minimum on this tank. I cut a hole in some typing paper and taped it to the tank around the fuel cap flange.
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 Taped down the rivets for the fuel cap flange back-riveting session
On the other tank, I just put tape over the rivets and left the hole open. The result was a huge proseal mess all over the back-riveting board. This time the rivet tape is going to trap the proseal on one side of the tank skin.
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 Getting ready to Rivet on the VA-112 drain flange
Same song and dance here. The typing paper and painters tape will keep the mess to a minimum.
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 Back-riveted the T-406B fuel cap flange
I pressed down hard on the back rivet tool to make sure that the curved fuel cap flange laid flat against the skin and back-rivet plate. I used a paper towel with some laquer thinner to clean up the excess proseal and forced the excess into the crack between the skin and the fuel cap flange to assure a good seal.
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 Here’s a shot of the back of the fuel cap flange
The painters tape and typing paper make cleanup a snap. The small curled T-914 clip was a real pain in the bahootie to rivet. I had to drill it out twice before finally getting it right. I ended up using my 4 inch yoke from Averys to put this one rivet in. The back-riveting on the rest of the rivets was easy.
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 Riveted on the VA-112 drain flange
I pushed the rivets into the holes one at a time and squeezed them in place with my 4 inch yoke and hand squeezer. The proseal oozed out everywhere, especially in the screw hole in the middle of the drain flange. I cleaned everything up with a paper towel and lacquer thinner. To clean out the screw hole, I rolled up a piece of paper towel and forced it through the hole and pulled it through the other side, turning it as I pulled it through.
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 Back shot of the VA-112 drain flange
I dobbed proseal on the rivets on the inside of the tank skin.
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 Plugged the hole in the outboard T-903 end rib
The instructions gave me the choice of creating a cover plate to rivet on or squeezing a really large rivet into the hole. It just so happens that I have a "bucket o' rivets" that I got from another builder that has already completed his RV. I found the perfect size rivet in the bucket and squeezed it into the hole. I made sure that the hole already had some proseal in it before the squeeze. Then I put an extra dab of black goo on top of the rivet, on both sides.
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