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MSP-42 F823-F-804 Rivets

Mark Jackson

Active Member
Patron
I'm confused about the Van's instructions to install some blind rivets. These are the two blind rivets per side at the bottom of the wing spar opening. These are the instructions from Van's:

RV-8 Only: Because of the difficulty installing the MSP-42 blind rivets at the bottom of the wing spar opening on
left and right F-823-1 Mid Side Skins, they need to be installed now. Uncleco the bottom portion of left F-823-1
Mid Side Skin so it and the F-804H-1 Center Section Side Plate can be pulled away from the underlying structure
enough to install the blind rivets (DWG 74).

Looking at the rivet callout on DWG 74, it would appear the rivets go through the F-823-1 skin and the F-804H-1.

Do they mean to pull the skin and the center section plate, install the rivet, and then put them back?

Is this because the blind rivet end would hit the spar carry through?

Want to be sure before I permanently rivet them in place.
 
If you don't pull the skin away from the spar slightly the bottom of the rivet hits the end of the spar. Pull out the skin a bit, put the rivet in, and set it; then when set it doesn't hit the spar.
 
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