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  #1  
Old 11-30-2013, 07:57 PM
Tiger Driver Tiger Driver is offline
 
Join Date: Oct 2013
Location: Littleton, CO
Posts: 7
Default 702 messed up? New 7 builder

Hello all, I'm a new builder of sn74261 working on the horizontal stabilizer. Everything has been going well until tonight and I think I may have ruined my 702 spars. I'm getting ready rivet the and was test fitting one last time before I prime and start riveting. I noticed the rivet would not pass through the 714-702-405 combo easily so I ran the reamer through... And now the hole in the 702 is "slightly" elongated in the one hole. :-( all others on the 702-714 are snug.

Question, when the rivet is squeezed will it fill the hole? Is this a replacement issue... Everything including the 714/710 edge distance etc looks great.

Dave
Littleton, CO
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  #2  
Old 11-30-2013, 08:25 PM
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izzybear izzybear is offline
 
Join Date: Sep 2010
Location: Dallas, TX
Posts: 330
Default Welcome to the VAF....

Welcome Tiger Driver and congrats on building the Vans RV-7 - a fine airplane indeed! You are in the right place to have your questions answered, as well as learn a great deal about best practices and hints/tips.

As far as the answer to your question - it's a little difficult to determine what, ""slightly" elongated in the one hole" truly means, but you would probably be good to go with either going with the same size/length rivet as in the call out if it truely was just slightly elongated. Another option would be to drill it to the next size (if it was a -3 rivet, re-drill the hole to a -4, and use that size for that hole). BUT - The best way to be sure - since you are talking about the spar, is to take a quick picture and email it to Van's builder support for a "ruling". Then you will know for sure. But from the sounds of it, there will be a solution that does not require replacing the spars... so take a deep breath, we have all been there. Welcome to the learning
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  #3  
Old 12-01-2013, 08:44 AM
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wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 3,947
Default welcome

Dave
Welcome. Good choice. I'm building a 7a slider in Estes Park. If you're ever in town please stop by. I will be back Dec. 9.
I agree with Jim.
The rivets will fill a little space and the primer will also take up a little space so you may be fine but asking the Mother Ship gives you some peace of mind you can print and add to the builder log.
If you want to know if the rivet will fill the hole. Make a similar scrap part and drill a hole of similar size. Drive the rivet called out in the plans.
Usually for tight holes I use the correct drill bit in a drill with no air and turn it by hand. In most cases it's just a little primer in the way.
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Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
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Donated 12/03/2019, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
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I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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  #4  
Old 12-01-2013, 04:14 PM
Tiger Driver Tiger Driver is offline
 
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Location: Littleton, CO
Posts: 7
Default

Thanks for the replies, calling Van's in the AM....suspect I get a do over just hoping not too many parts. With all intertwined parts in that location I may need 702-405-404-710-714...

Dave
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  #5  
Old 12-01-2013, 04:55 PM
Tiger Driver Tiger Driver is offline
 
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Location: Littleton, CO
Posts: 7
Default

Offending hole in 702: http://www.flickr.com/photos/9410787...57638065253405
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  #6  
Old 12-01-2013, 05:06 PM
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Mike S Mike S is online now
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Location: Dayton Airpark, NV A34
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Default Welcome to VAF!

Dave, welcome to the good ship VAF
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  #7  
Old 12-01-2013, 05:12 PM
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wirejock wirejock is offline
 
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Default link

Quote:
Originally Posted by Tiger Driver View Post
This link doesn't seem to work.
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Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 12/03/2019, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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  #8  
Old 12-01-2013, 05:17 PM
Tiger Driver Tiger Driver is offline
 
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Location: Littleton, CO
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Default

Flickr is pain... Changed permissions...
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RV7 sn74261
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  #9  
Old 12-01-2013, 06:48 PM
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wirejock wirejock is offline
 
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Location: Estes Park, CO
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Default holes

I see the hole is a little egg shaped. Maybe more than one of them. I can't remember the location and my plans are back home in Estes Park.
If these are 3/32 holes you could go up to 1/8 but if memory serves, they are 470-4 so it's a close call. Maybe one of the gurus here will look at the pic and comment.
It's always good to have an EAA Tech Advisor you can call on. I think you are close to Chapter 43 at Metro.
Please let us know what the Mothership says.
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Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 12/03/2019, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.

Last edited by wirejock : 12-01-2013 at 06:55 PM.
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  #10  
Old 12-01-2013, 08:18 PM
PCHunt PCHunt is offline
 
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Location: San Diego, CA
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Default

It may just be the lighting for the photo, but it appears that you might be de-burring a little bit too much. Hard to tell from a single photo.
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