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03-21-2010, 08:41 PM
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Join Date: Mar 2010
Location: Springhill, LA (KSPH)
Posts: 81
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rivet question
I have a few of the dome shaped rivets that the die slipped on while riveting. The factory head has c shaped indentions. Some have two or three c shaped indentions.
Should I replace these rivets?
Thanks,
Jake
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03-21-2010, 08:44 PM
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Join Date: Nov 2006
Location: Waco, Texas
Posts: 1,658
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Most likely not if they aren't too severe. Got pics?
They're probably best left alone instead of drilling, damaging the hole further, and then re-riveting.
Keeping the rivetset tight and square with the head will keep it from happening.
I'll bet you're fine.
Last edited by Phil : 03-21-2010 at 08:51 PM.
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03-21-2010, 09:09 PM
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Join Date: Jun 2007
Location: Lee's Summit, MO
Posts: 743
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Smiley Prevention
A few tips:
Use a small piece of duct or masking tape on the face of your rivet set. The added friction helps keep the set from sliding on the factory head. You'll only get one or two rivets per piece of tape, but it's worth the effort.
A commercial solution is called "Snap Socs." These are plastic caps that fit around the rivet set. Not cheap, but they last through several rivet sessions and work well. See Avery:
http://www.averytools.com/p-884-snap...-set-caps.aspx
Don't be shy about holding the gun firmly on the rivet. If you have a bucking partner you can steady the rivet set with your fingers.
Good luck
Mike
__________________
Mike Dooley
RV hitchhiker
RV8 SB
VAF#1067, EAA Chapter 91
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03-21-2010, 09:11 PM
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Join Date: Mar 2010
Location: Springhill, LA (KSPH)
Posts: 81
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Yes sir.
__________________
Cessna 150/150
N22190
(KSPH) Springhill, LA
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03-21-2010, 09:37 PM
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Join Date: Mar 2010
Location: Springhill, LA (KSPH)
Posts: 81
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That is a great tip to use tape. I will try that.
__________________
Cessna 150/150
N22190
(KSPH) Springhill, LA
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03-21-2010, 09:56 PM
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Join Date: Nov 2009
Location: McKinney, TX
Posts: 112
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Jake,
I shoot rivets for a living, and I use tape on my rivet sets. I personally would replace those. Just be careful drilling them out. You're letting the set bounce, like Transporter said. And don't remove the gun until your finger is off the trigger.
__________________
Pete Miller
RV-7 Panel and Avionics
N174PM (reserved)
McKinney, TX (T31)
http://smilinpete.com
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03-22-2010, 08:26 AM
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Join Date: Mar 2010
Location: Springhill, LA (KSPH)
Posts: 81
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Thank you.
__________________
Cessna 150/150
N22190
(KSPH) Springhill, LA
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03-22-2010, 08:40 AM
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Join Date: Jan 2005
Posts: 1,009
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Just One More Thing
Jake:
In addition to tape you might also try using a heavier bucking bar for the larger rivets. Shouldn't take more than a few pulses from your impact gun to properly set a rivet, assuming pressure is OK.
Terry, CFI
RV-9A N323TP
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03-22-2010, 09:39 AM
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Join Date: Nov 2006
Location: Waco, Texas
Posts: 1,658
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Yeah, a couple of those are pretty rough. I'd probably replace the worst ones.
Phil
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03-22-2010, 04:10 PM
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Join Date: Jun 2005
Location: Fort Myers, FL
Posts: 483
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Hold the gun tight to the rivet until the noise has stopped and set a lower pressure if you can't hold it straight at the current pressure.
Someone messed with my gun pressure once and I could not set a rivet to save my life; it took me a while to figure out a visitor had "helped" me. All my rivets were bad!
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