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  #1  
Old 06-01-2021, 06:16 AM
bob865 bob865 is offline
 
Join Date: Feb 2021
Location: Greenville, SC
Posts: 8
Default k1000-6 NutPlates

Good morning VAF. A quick question I haven't been able to find an answer to through searching google and the forum. I'm finishing the right elevator on my empennage kit and when I try to thread in the rod end bearings for the hinge point, they are really tight after the first few threads. I tried the other nut plates in my bag and they are all this way. When I look at them, I can see the threads all the way through so it looks like they should be able to thread all he way through. It almost looks like the coating that on it is blocking the threads so I ran a tap through a couple. But I stopped because I am curious is this is the way it's supposed to be? Are they tight to hold a bolt like a nylock nut? or am I making a mess of things by running a tap through?
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Empennage Kit: In work (45%-ish)
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  #2  
Old 06-01-2021, 06:30 AM
Kyle Boatright Kyle Boatright is offline
 
Join Date: Aug 2005
Location: Atlanta, GA
Posts: 4,606
Default

Quote:
Originally Posted by bob865 View Post
Good morning VAF. A quick question I haven't been able to find an answer to through searching google and the forum. I'm finishing the right elevator on my empennage kit and when I try to thread in the rod end bearings for the hinge point, they are really tight after the first few threads. I tried the other nut plates in my bag and they are all this way. When I look at them, I can see the threads all the way through so it looks like they should be able to thread all he way through. It almost looks like the coating that on it is blocking the threads so I ran a tap through a couple. But I stopped because I am curious is this is the way it's supposed to be? Are they tight to hold a bolt like a nylock nut? or am I making a mess of things by running a tap through?
They are supposed to be tight and you really shouldn't run a tap through them - they will lose some/most/all of their self locking feature. Use boelube or some other lubricant and the screws will go in much easier.
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Marietta, GA
2001 RV-6 N46KB
2019(?) RV-10
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  #3  
Old 06-01-2021, 06:33 AM
lr172 lr172 is offline
 
Join Date: Oct 2013
Location: Schaumburg, IL
Posts: 6,517
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Quote:
Originally Posted by bob865 View Post
Are they tight to hold a bolt like a nylock nut?
Yes. more char
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  #4  
Old 06-01-2021, 07:08 AM
bob865 bob865 is offline
 
Join Date: Feb 2021
Location: Greenville, SC
Posts: 8
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I knew you guys would know! Thanks!
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First Time Builder
RV8A- Status:
Empennage Kit: In work (45%-ish)
Wings Kit: Ordered (Standard Build)

https://eaabuilderslog.org/?s=Adam_RV-8
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  #5  
Old 06-01-2021, 07:55 AM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 4,596
Default Nutplate adjustment

If you ran a tap through and they are loose, get a pair of vice grjps and squeeze the end were the screw exits. Start with no clamping force and increase a tjny bit at a time till it barely deforms. Lock that setting and repeat on the others.
I've had a few that were so tight, I had to run a tap through then reset them to a realistic friction.
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Larry Larson
Estes Park, CO
wirejock at yahoo dot com
Donated 01/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
Empennage, wings, fuse, finishing kit, now FWF
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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  #6  
Old 06-01-2021, 08:29 AM
John Tierney John Tierney is offline
 
Join Date: Jan 2006
Location: Vonore, TN
Posts: 497
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Do check them for threads before you rivet them on, as from time to time a nutplate sneaks by the threading machine at the factory.
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  #7  
Old 06-01-2021, 12:52 PM
ctennis ctennis is offline
 
Join Date: Aug 2014
Location: Columbus, IN
Posts: 133
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Also keep in mind that if your nut plate opening isn't perfectly centered with the hole in the material in front of it, your threads will end up rubbing against the aluminum opening as you thread it into the nut plate, adding what can be a lot of extra resistance.
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