I'm getting our new-to-us 1999 Casita
SD ready for her shakedown trip. One potential issue is that many of the rivets are missing their caps. A previous owner applied clear silicone sealant in each case when the caps cracked up. Now, many of the rings are also missing their rims (I think due to the same UV exposure that kills the caps). In many cases the rings are still okay under the metal rivet (existing as a flat washer). Any thoughts on the most practical repair method? Two options occur to me:
A) Just-get-it-done approach: Clean off existing silicone and loose snap caps/snap ring fragments. If ring has a rim, then apply a small bit of new sealant (Sikaflex 505UV) around the edge and a small dab on the top of the rivet, snap the cap down. If the ring edge is gone, apply a bigger blob and and use it to adhere a snap cap over the top (to protect from further UV damage and for aesthetics)
B ) The "by the book" approach: If the snap ring isn't there/can't hold a snap cap, then drill out the rivet and install a new rivet with a new snap ring, use butyl tape underneath and a small bit on top (under the cap) to seal the rivet hole.
Since we'd like to leave in a few days and I don't have any snap rings, I'm hoping to get away with "Approach A" at least for this year, and to go back and address the problem "right" after this season. If you did this, would you just leave off the caps on the rivets you'd be just be replacing in 6 months?
Dumb? Okay? Any thoughts are appreciated.