About a year or so ago, I found fuel on the floor under the rear of my 67 Coronet. The original fuel filler elbow had deteriorated and was leaking badly. It was so rotten, I could just about tear it off of the car by hand. I had a repro elbow that I had gotten several years ago, but had never changed it. So I installed the new elbow. Today, I was under the car, and see liquid pooling up like ready to drip from the new elbow. It actually felt oily. There was no indication that there was a leak from around the connections, and it looks like the fuel may actually be seeping through the rubber elbow itself. I am wondering if the repro part was made out of the wrong materials and the fuel was penetrating it. Has anybody else ever seen this issue, or heard of it happening?
