Construction


Fuel Tanks 15 (4.5 hrs)

Interior ribs was the name of the game for Sunday.  I completed all of them for the left tank.  I have the process down very well now.  50 grams of sealant and two ribs at a time works out perfectly for the work timing.  I think if I really am on my A game, I can do three ribs at once which means I could do all of the interior ribs on the right tank in two batches of sealant.

Not much else to mention.  Everything went as planned.  I will have some notes and tips for sealing, but we’ll wait to see that it doesn’t leak first!20140210-090713.jpg

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Fuel Tanks 14 (7.0 hrs)

The tanks are slow going and this post includes work from last weekend that I had forgotten to include.

Last weekend I knocked out the fuel cap flanges and drain assembly. Normally, this would have been a relatively quick procedure, but I made a boneheaded mistake. I riveted the flanges but forgot the vent line clip. I drilled out the rivet and fixed the error, but then again every step you take is slowed by the application of sealant.

Today I riveted and sealed two interior ribs on the left tank. It’s been many months since I riveted with the mushroom swivel set and a bucking bar. Adding sealant to the equation only made me more nervous. My fears were not justified, and the riveting was a breeze. After two ribs, I have my technique and timing fairly well nailed.  About 50 grams of sealant is perfect for two ribs.

Here is the completed fuel cap assembly. 20140208-212613.jpg

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Interior of the fuel drain.20140208-212731.jpg

Blurry picture of the exterior of the fuel drain.20140208-212740.jpg

Interior of the fuel flange. 20140208-212750.jpg

Rib sealing…20140208-212809.jpg

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Progress so far. 20140208-212851.jpg


Fuel Tanks 13 (5.5 hrs)

Riveting and sealing has begun.  I bought syringes, tongue depressors, and gloves yesterday and boy, I sure used them today.  The sealant has the consistency of cold honey, or mozzarella cheese… it makes a mess everywhere.  It took some time for me to get my technique down, but by the end of today’s session I’ve got it down pat.

I didn’t make enough sealant to begin with.  I would recommend about 60 grams per tank for all of the stiffeners.  My first syringe was a 35cc syringe.  Not big enough.  Later I moved on to the 60cc syringe which was much easier to use.  Plus, if you need to use a smaller syringe for a tight spot, its easy (and avoids the mess) to use the bigger syringe to dispense some sealant into a smaller one.20140126-163014.jpg

Not too many pictures on the first tank, as I didn’t want to touch my phone with messy hands.  Here is the end result. 20140126-163022.jpg

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The first tank is much messier as I gave up on the 35cc syringe halfway through and used a tongue depressor instead.  Some people put tape down and spend lots of time on making it neat.  Its sealant.  It doesn’t need to be neat, it needs to be sealed. 20140126-163051.jpg

On the second tank, I used the 60cc syringe.  Perfect.  Application is easy, neat, and you avoid waste. 20140126-163058.jpg

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End result on the second tank.  The 60cc syringe fits perfectly over the shop head of the rivets.  With a little finesse I was able to perfectly coat each shop head with sealant.  The large syringe is awesome. 20140126-163123.jpgThe final act for the day was to take the skins into the basement.  The temperature is in the 20’s today and I’d prefer the sealant set in warmer conditions.  The basement is about 63.

All in all, today was a productive day.  In the next session I’ll do the fuel caps, vents and start on the ribs.