I have drilled out over 100 Olympic rivets and an equal number of pop rivets (of all things) that were used to re-skin my trailer (overlay project from exterior). All of these rivets have been replaced with the VTS 5/32" modified brazier head rivets that have the head size of the AS factory 1/8" rivets. I'm using TremPro 635 to install all of the rivets. Take a look at this thread for more details http://www.airforums.com/forums/f381...aks-88252.html
. After installation, just wipe the surface of the rivet and surrounding area with a rag containing a slight bit of mineral spirits and follow up with a dry wiping rag.
I've been disappointed with how leaky the Olympic rivets were. If you've pulled the inner skins, you should take the opportunity to improve the original repair, in my opinion. I've also been discouraged with how some aspects of the trailer sheet metal were assembled at the factory. I am selectively some of these aspects of my trailer that have been there from day one.