Leaky Tank Access Plate
Thanks 74-07 and N941WR,
Thanks to your encouragement I pressed on and was able to get the Tank Access Plate off. Two screwdrivers and a small Micro pry bar were sacrificed and modified in the process.
My RV9A was a project I bought to save time , BOY WAS THAT A BAD IDEA!!!!
I spent about 1/3 - 1/2 of the time to finish the RV9A, repairing something else I "discovered".
Fortunately I decided to remove the tanks and pressure test them before skinning the wing. Many leaks, Many leaks. My repairs lasted about 7-8 years, till now.
The current problem was the Anti-Rotation bracket. It was attached with two pop rivets, not blind rivets and no ProSeal. It took years for the fuel to work its way out through the rivets. On the Out side of the bracket, the rivet heads were covered with pro-seal applied around the exiting fuel line fittings. The rivet heads were buried at the very edge of the pro-seal, but totally covered, except for the blue stain. Also, the rivets did not leak when the fuel level was below the center the fuel Tank Access Plate. I scratched my head a lot chasing this leak.
Vans said this was an educational project!!
As Bill Stout (designer of the Ford Trimotor) used to say, ?Simplicate and add Lightness?