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  #1  
Old 08-08-2022, 03:57 PM
Morepower Morepower is offline
 
Join Date: Jul 2021
Location: Byrdstown
Posts: 9
Default Rivets and Weights

Hello everyone, I'm getting close to finishing my empennage on a 8A kit and have a couple of issues that have come up I'm needing feedback on. 1st, the drawing calls for MK319 BS blind rivets for attaching the elevator skin to the trim spar (the 4 holes on the end). After inserting these in the bottom I have come to the conclusion that I don't want these round headed rivets on the top skin where everything is countersunk. Is there an alternative countersunk blind rivet I could use? 2nd, I trimmed my left counterweight before I saw right side only. Is this a problem or is it trash (it's all bolted and riveted in)? Thanks so much for your input.
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  #2  
Old 08-08-2022, 05:05 PM
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fl-mike fl-mike is offline
 
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Mk319bs IS countersunk flat head.
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N164WM RV-6A Slider/O-360/FP Sold 4/2022
N184WM (RV-8) Final stages. Titan IOX-370
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  #3  
Old 08-08-2022, 05:19 PM
Lucky Aviation Lucky Aviation is offline
 
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Location: Foster Kentucky
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From the look of the rivet in question, it appears that you should dimple first.
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  #4  
Old 08-08-2022, 08:01 PM
Morepower Morepower is offline
 
Join Date: Jul 2021
Location: Byrdstown
Posts: 9
Default Rivets and Weights

Great, I identified the rivets from the packing list. A search of A/S didn't even turn up that type so I guess I'll have to call Vans. I did dimple the holes and thought it was strange to drill them out for these rivets, but I checked and rechecked the drawing. Any idea what these might be? Thanks
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  #5  
Old 08-08-2022, 08:06 PM
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D Weisgerber D Weisgerber is online now
 
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Location: Ionia Michigan
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I think the rivet you have pictured is an MSP-42. Look through the bag you probably have both types in 1 bag.
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  #6  
Old 08-08-2022, 08:35 PM
Morepower Morepower is offline
 
Join Date: Jul 2021
Location: Byrdstown
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That would make sense. The packing list calls for 14ea, MK-319-BS and I have only 12, where as the list calls for 12ea, MSP-42s (of which I have none). So it looks like I switched them around. So now I have to figure out where I put the wrong MSP-42s.
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  #7  
Old 08-08-2022, 08:39 PM
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fl-mike fl-mike is offline
 
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The manual has a page (which I posted a view) of all pop rivet types, full size.
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N164WM RV-6A Slider/O-360/FP Sold 4/2022
N184WM (RV-8) Final stages. Titan IOX-370
N184P reserved (RV-8QB) Empennage
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  #8  
Old 08-08-2022, 08:55 PM
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Join Date: Oct 2005
Location: Estes Park, CO
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Default Pull rivets

Quote:
Originally Posted by Morepower View Post
That would make sense. The packing list calls for 14ea, MK-319-BS and I have only 12, where as the list calls for 12ea, MSP-42s (of which I have none). So it looks like I switched them around. So now I have to figure out where I put the wrong MSP-42s.
That's important. MK-319-BS is a tiny bit bigger in diameter than a #3 rivet (7/64"). MSP-42 is 1/8". That means several holes were drilled 1/8". Let us know.
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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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  #9  
Old 08-09-2022, 12:54 AM
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Jonnyb Jonnyb is offline
 
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As for the counterweight, you’re going to have to add that weight back in some how, and maybe a bit more after paint. If. It was me I would drill out the counterbalance skin on one side and replace the weight.
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  #10  
Old 08-09-2022, 04:31 AM
Morepower Morepower is offline
 
Join Date: Jul 2021
Location: Byrdstown
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Well the good news is that I accounted for all of the rivets. There are only 5 misplaced. The four MSP-42s drilled to 1/8 are in the last 4 holes on the bottom side skin to the trim spar. Only one MK319 BS is in the folded tab on the elevator. I found that I had placed them in a different bag so I just switched bags. Do you think I should drill the MK319 out and replace it (easy to do at this point) or leave well enough alone? Is there a rivet I can replace the four MPS-42s with (like the oops rivets)? Lesson learned is to use the chart to ID these pop rivets.
I have electric trim so does that require removing weight from the left side? Not looking forward to drilling out all of those rivets. But, if I need to I'll replace it. Thanks again.
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