I have one weeping fuel rivet on the top of my left wing about 10 inches from inboard edge on the aft most row. I see a faint stain after a couple weeks of flying. The wing is unpainted but I'm getting ready for paint so I need to fix the rivet. I'm posting this because of the surprising result in application of the proseal. On a whim I decided to try a syringe to force proseal from the outside inwards around the rivet. I cut the end tip from the syringe and left the thin wall in place. I thinned the proseal with acetone. Here's the surprising part, I was able to apply all the force I could muster onto the syringe to force the proseal in to the rivet without the proseal squiring out and making a mess. I was amazed. I know I had at least 50 lb on the syringe, syringe area ~ 0.5 sq inch, so pressure on the proseal = 100 psi. The end area of the syringe thin wall created a much better seal than expected. The pressure inside the syringe is transferred thru the thin wall of the syringe and makes the seal. I don't know if this will fix the weeping rivet but I know if this pressure could not force the proseal in that nothing will. In the picture the proseal has been cleaned from the end of the syringe to view the size of the hole. Note, I tried the loctite fix previously but that did not work.
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