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Old 11-19-2017, 07:21 AM
mturnerb mturnerb is offline
Join Date: Apr 2015
Location: Ponte Vedra, FL
Posts: 832

Originally Posted by MED View Post
Instead of o-rings, get a piece of small diameter tubing - with the ID about the same size as a rivet. Then, you can cut off an unlimited supply of "o-rings". 🤗
That's what I do - bought a couple different diameters of aquarium type tubing on Amazon - easy to fully drive rivet with these in place while pushing pieces together.
Turner Billingsley
RV-14A In Progress
N14VB Reserved
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Old 11-19-2017, 08:06 AM
coffeeguy coffeeguy is offline
Join Date: Jul 2015
Location: Lake in the Hills, IL
Posts: 109
Default clamp it

When I first started a number of riveting troubles were caused by the parts not being clamped or secured very well. If the part is wobbling around and you are trying to support it, use the bucking bar and rivet gun... well, it doesn't work too well. If the parts are clamped and secured, you can see how everything lines up and you can get the bucking bar square to the rivet, then things go a lot easier.
Jeff Dingbaum
RV-14A empennage, wings
Cherokee 180
2018 dues paid
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Old 11-19-2017, 09:52 AM
rv7charlie rv7charlie is offline
Join Date: May 2006
Location: Pocahontas MS
Posts: 3,338
Default on keeping the 'stack' tight:

Many things work; o rings, tubing, etc.

I use various thicknesses of rubber/neoprene sheet. I cut a small piece; ~1/2" square is usually plenty. I drill a hole near the edge using the same drill I'd use for the rivet hole. Then cut from edge into the hole using scissors or wire cutters. The hole ends up smaller than the rivet, but will slip over the rivet tail easily. I use a thickness that's roughly equal to tail length that's exposed when the stack is tight. A short burst with the gun will clinch the stack, then the rubber is removed & setting is finished.
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Old 11-19-2017, 10:03 AM
EXflyer EXflyer is offline
Join Date: Jan 2016
Location: Chiloquin OR
Posts: 93

A rivet should be stet with as few as possible blows from the gun. If not it will work harden to the point it will fail and pop the head off. That was a fellows problem on here a few months back. He could not figure out why it was happening thought it was bad rivets.
Just a thought when driving them. Boyd in Chiloquin Or
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Old 11-19-2017, 12:26 PM
DavidAhrens DavidAhrens is offline
Join Date: Feb 2007
Location: Bakersfield, CA
Posts: 51
Default rivets

Hi Tommy, I am in Shafter and may be able to help. No expert but have completed a RV6A and currently working on RV6. Call if you want another opinion and/or help. 661 865-3529
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Old 11-19-2017, 05:21 PM
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czechsix czechsix is offline
Join Date: Mar 2006
Location: Spring Hill, KS
Posts: 336

On my VS I used my hand squeezer with the handles on the aft side of the front spar. I put the rivets in with the manufactured head on the front side. I think I had to bend the nose rib upward a bit in order to get the yoke onto it but not too much. One nice thing about the hand squeezer is you can go slowly (compared to pneumatic squeezer or rivet gun) to better control setting the shop head on the aft side of the spar, and by pulling the handles of the squeezer aft you can keep enough pressure on the manufactured head to keep the nose rib flange flush to the spar, no o-rings or other gadgets required...
Mark Navratil
Spring Hill, KS
RV-8A N2D #80583 - built/flew/sold
RV-14A #140017 - wings complete, empacone in progress...
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Old 11-20-2017, 09:45 AM
sblack sblack is offline
Join Date: Dec 2009
Location: Montreal
Posts: 1,310

When I had my fin inspected by the MDRA (Canada) I had a bit of a gap between the rib and the spar. They snagged it and I sent a picture to Vans. they answered that the purpose of those rivets was simply to hold the rib in place and that the loads were transmitted to the spars mostly via the skin. So, if you have the rib not lying down tight to the spar it is not a strength issue, it is only a "fussiness" issue.
Scott Black
RV 4, with an engine...and other stuff
VAF dues 2018
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Old 11-21-2017, 12:27 AM
Burndout11 Burndout11 is offline
Join Date: Aug 2017
Location: Bakersfield, CA
Posts: 18

Thanks to everyone for the advice. Gonna give it another go soon. David, Iíll give you a holler soon.
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