In case it is not clear in the picture, that is 100 LL seeping out of the steel braid. Well, after only about 12 hours on my new-to-me RV8, a check under the cowl found a leaking fuel hose! The hose looks great until you start sending fuel down it. All the other fuel hoses were covered with pyro wrap except these to pressure sensor hoses. These two hoses were aeroequip rubber hoses and I am sure the failure was caused by exposure to heat. They have been replaced by Teflon hoses rated to 450F service. The Aeroequip hoses without heat wrap are rated around 180F. Inspect and pressurize fuel hoses often!
http://i136.photobucket.com/albums/q169/Fly-rod/IMG_1640.jpg
http://i136.photobucket.com/albums/q169/Fly-rod/IMG_1640.jpg