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Old 01-08-2012, 01:02 PM
N9331v's Avatar
N9331v N9331v is offline
Join Date: Jan 2010
Location: Hampshire, IL
Posts: 276
Exclamation Rivet help

I 'm working on my -7 Drawing 25 , Riveting the F721A-R forward canopy deck to the F-721B-R ( Longeron ).
I cant for the heck of me get any of my bucking bars in, even my little tungsten. Can I use a cherry max pull rivet in the three locations I marked in red. If can does anyone know a cherry max equivalent # ?
Ed Martin
Donations 1/19 & 6/19

Last edited by N9331v : 01-08-2012 at 01:04 PM. Reason: spelling
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Old 01-08-2012, 01:18 PM
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AltonD AltonD is offline
Join Date: Sep 2005
Location: Dothan, Alabama
Posts: 1,492

I used a pulled rivet, but I have no idea which one.
Alton DeWeese
N526RV RV7A Tip Up, IO360 180 W/Hartzel BA prop.
Flying ~950 hours since Aug 2010

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Old 01-08-2012, 02:11 PM
Pat Stewart Pat Stewart is offline
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Location: Granbury Texas
Posts: 1,136
Default Rivet

A Cherry Max should be fine however the most important thing is that you measure the grip and use the correct rivet length.

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Old 01-08-2012, 03:08 PM
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Bruce Bruce is offline
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Location: Anywhere, USA
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Pull the 721 A and B off. Then rivet the 2 rivets then put the piece
back on as one unit. I think that is how I did it.
If rivetted on. Blind Rivets.
Bruce (BOOMER) Pauley
Kathy (KAT) Pauley

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Old 01-08-2012, 09:43 PM
dr cooper dr cooper is offline
Join Date: Aug 2006
Posts: 49
Angry Rivet help

I used (made) a 1" x 1/2" x 7" flat bar for my bucking bar squeezed in place with fingers as close as possible to the rivets.
Then set with rivet gun.
It does not take much to set these little rivets, but make sure you squeeze firmly on the bucking bar.

Chase, BC
RV9A - production held up thorugh work injury!
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Old 01-08-2012, 11:10 PM
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N9331v N9331v is offline
Join Date: Jan 2010
Location: Hampshire, IL
Posts: 276

I all ready have 99% rivited so I wouldn't want to remove, guess tomorrow I'll try the idea making something smaller to get into such a tight area. If that don't work I'll have to decide on which pull rivets to use

Thanks everyone for the input.

Ed Martin
Donations 1/19 & 6/19
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Old 01-08-2012, 11:54 PM
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comfortcat comfortcat is offline
Join Date: Jul 2005
Location: Southern California
Posts: 617
Default Blind rivet equivilent...

You'll need to verify the reach, but the MK319-BS blind rivet is acceptable.

Note: Getting them from Van's is a little more expensive that Aircraft Spruce, but ACS says the ccc-32 as an interchange for MK319-BS, but I find them a slightly different size. Get a bunch from Van's.
David Boeshaar
RV-9A - N18TD (reserved) - Fuselage.
"My greatest fear: What if the hokey pokey really IS what its all about?"
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Old 01-09-2012, 08:09 AM
doug_rv7 doug_rv7 is offline
Join Date: May 2005
Location: Lincoln, NE
Posts: 73
Default Back Rivet Plate

I've used the side of my back rivet plate as a bucking bar in narrow places like this. That may work.

RV-7 Fuselage
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Old 08-21-2012, 10:38 AM
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larrynew larrynew is offline
Join Date: Oct 2007
Location: In New Braunfels, ist das Leben schön!
Posts: 919

Here is the perfect bucking bar for the rivets in the first post. It fits just like it was made for this spot. Several vendors carry the same one but I got mine at Avery.

Larry New
RV-7A - Built, flew 950+ hrs, sold
RV-10 - Built, flying 250+ hrs
RV-12iS - All kits ordered!
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Old 08-21-2012, 11:39 AM
WenEng WenEng is offline
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Location: Jacksonville, FL
Posts: 530
Default What Bruce said...

If you haven't already riveted the assembly on, take it off, rivet the two vertical rivets, reattach and if necessary, drill the one other hole out to 7/64 and put an MK319BS in there.
Wendell VAF#1832
RV-6A 3/4 done...N48JE Reserved
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Donated to VAF in 2021
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