I was just looking through the treads and found this.
So I thought i may share something with you.
My last experience just a few weeks ago The same thing happened to me.
For a while I thought i could smell petrol in my car from time to time.
and just as you did looking under the car i could see nothing.
As you know i have an injected engine and an aluminum fuel tank.
so there is a lot of pressure in the line.
About 6 weeks ago I was on an interstate drive. On my way home and I noticed my fuel was doping faster than it did on the way up. At first I thought am I just lead footing it a bit or is the ECU keeping the cold start injector on or something. I pulled over at a small town and looked under the car, looked under the bonnet I could see nothing. No sign of a leak, at one point thought I could smell petrol but it was so brief I shrugged it off.
So I kept going. 20 min later into the drive the fuel gauge was dropping fast very fast.
No joking this time. I was not sure I would make it to the next stop.
Pulled into the first fuel station I came across just in time.
Got out looked under the car and asked my wife to start the engine. OMG it looked like a water sprinkler under there. There was fuel spraying all over the under side of my car.
We where so lucky there was not a fire.
This is what I found one very short peace of fuel line coming out of the fuel pump to the filter had developed a small fracture from old age. You could see the rubber was perishing and the pressure in the line was pumping fuel out in a spray through the cracks.
I climbed under the car right there and removed it. Went to the engine bay found a peace of hose I could steal of another part of the motor and changed it to get home.
We where so lucky there was no fire the great TR7 god was looking after us that day.
Next day I decided to change all the fuel lines in the car . I was even more shocked that there was another one about to do the same thing.
So what I am saying is Change all your fuel lines now ASAP don’t even give it another thought.
that's my experience hope it helps.
best regards rod