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  #1  
Old 11-26-2014, 10:42 AM
jswareiv jswareiv is offline
 
Join Date: Dec 2006
Location: New Orleans, LA
Posts: 473
Default Rivet in a bad spot.

This is the Center Bottom Skin where the Aft Gear Brace Assembly attaches. I was trying to figure out how to get to this rivet. Unless you bend the flange out of the way, there really isn't a way. Spoke to Van's and the engineers are going to change the sequence of steps here. So if you haven't gotten to this part yet, check with them to see how it is going to be changed. I think they are going to recommend to rivet this before attaching the seat rib angle, but they will let us know. Good luck and Happy Thanksgiving to everyone.

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  #2  
Old 11-26-2014, 10:58 AM
rv8pilotpaul rv8pilotpaul is offline
 
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Default Rivet in bad spot

I was able to get a CS4-4 pop rivet in this spot.
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  #3  
Old 11-26-2014, 11:19 AM
YellowJacket RV9 YellowJacket RV9 is offline
 
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Default

It also looks (it's hard to tell from the angle, though), like you may be able to take a little off of the corner of that flange above it without losing edge distance for that rivet. Maybe just enough to get a screwdriver head above the shank and set it that way.
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  #4  
Old 11-26-2014, 11:23 AM
paul mosher
 
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Remove three rivets securing flange. Shoot rivet. Install three rivets securing flange.
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  #5  
Old 11-26-2014, 11:28 AM
BillL BillL is offline
 
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Location: Central IL
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Quote:
Originally Posted by paul mosher View Post
Remove three rivets securing flange. Shoot rivet. Install three rivets securing flange.
+1 Absolutely! - and keep moving. It won't be the last time.
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  #6  
Old 11-26-2014, 01:20 PM
jswareiv jswareiv is offline
 
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Location: New Orleans, LA
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Default Rivet Placement

Quote:
Originally Posted by BillL View Post
+1 Absolutely! - and keep moving. It won't be the last time.
One of the issues with removing those three rivets is #1 getting a drill down there close enough to the last one without scarring the skin and the second problem, Van's is very particular about that angle being exactly 90°. You set the top rivet, slightly, then check for 90°. Final drill to #30 the other two holes. Check again, if needing to adjust, drill again. Trying to get those three rivets out, at that angle, without messing up the skin or enlarging the holes, I don't know about that. I did try a screw driver on the other one, but the result I got - I'd rather have the pop rivet.

Van's option for me is to use a CR3212-4-2 rivet (instead of a CS4-4), which I have ordered and intend to use. No one will notice the two pop rivets under my plane and if they do, they better be cleaning the oil off the belly!
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  #7  
Old 11-26-2014, 01:41 PM
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Mel Mel is offline
 
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Drilling out those 3 rivets should be no problem with an angle drill.
You don't drill all the way through. Just enough to snap off the head.
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  #8  
Old 11-26-2014, 02:09 PM
Bevan Bevan is offline
 
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You may have another one to remove. 2nd one from the left with the smiley.
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  #9  
Old 11-26-2014, 02:42 PM
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rvbuilder2002 rvbuilder2002 is offline
 
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Location: Hubbard Oregon
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This is a potential problem that was discovered during the fuselage kit development, and was thought to have been resolved by proper build sequence (but obviously wasn't).

A revision of the plans will be done that will delay the riveting of the upright.
My recommendation would be to remove the upright angle. I don't think you will be able to insert the cherry rivet far enough to set it.

Any builder not yet at this point should delay riveting the upright angle to the lateral, until after riveting to the skin.
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  #10  
Old 11-26-2014, 03:34 PM
Ron B. Ron B. is offline
 
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Location: Yarmouth, Nova Scotia
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Quote:
Originally Posted by paul mosher View Post
Remove three rivets securing flange. Shoot rivet. Install three rivets securing flange.
That's fine but van's has you take several steps to install this part 90 degrees in previous steps. Removing it now would make those task valueless . By the description it sounds like this is a crucial structure so I did not drill it out. I shaved a hair off the rivet and pre squeezed it to the point it would just fit into it's hole and used the blade of a large screwdriver and set the rivet by hitting the screwdriver with the gun as suggested above. Pain but worked.
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