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Traci and Tom's RV-7A
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Date: 7-23-2013
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Number of Hours: 1.50
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Manual Reference:
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Brief Description: Rivet removal Horizontal Spar - Part II (Success!)
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After going to bed at 1:30 am, after I practiced on the scrap, I slept better about what I had to do the next day. After asking questions on forums and other builders on the Facebook group, I felt more confident that I could get the rivets out. I was correct! Practice makes perfect (or at least usable). I had to go in the back side and drill out the shop end of the rivets and it worked better this time. I did learn the following: - If you are drilling and it goes off center, just angle and aim toward the center. Go vertical again once you get there with the drill. - Drill deeper! I was afriad of going too deep, but I wasn't going far enough. If centered, your hole won't get destroyed. - If you are deep enough, the head should just pry out nicely. (Again I stress DEEP ENOUGH - I wasn't there). - Don't be too scared of giving it a good firm whack with the hammer and punch to get the center out. Just make sure you have good, even support behind. I have a 1 inch nut that I used and it supports it well.
In the photos I show my result. It's not super pretty, but the rivets will fit in fairly snugly and will spread out when squeezed. It should be ok. I deburred a little, then used Scotchbright to polish it down nicely. Acetone cleaned, then a couple coats of prime. Back at it.
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Small edges where I miss drilled (before I knew better)
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Back side. Holes seem ok.
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