UPDATE
Well, the petrol smell has been under thorough investigation by me over the last few days and the source of the smell has been found.
All the obvious suggestions were checked, from filler cap seal through filler pipes and feed lines to the engine.
As informed this model is a pressurised tank system and so the lines checked accordingly including the pipe from air intake to Ecuador unit.
I purposely filled the tank to the brim and then up to the filler cap in order to check everything (wouldn’t normally do that)
With all the back end stripped off and the exposed tank open to the very hot sun, after a few minutes fuel mist was appearing from the seam that joins the fuel sender unit to the tank, I had previously dismantled and cleaned / reassembled the actual sender unit top. The seam had opened up in the heat along a 20mm line.
I took the car for a run and was overpowered by the fumes, upon return after just a mile the tank top was swimming in fuel and the fuel level in the tank had dropped by over an inch, which just shows how much it was throwing out.
A temporary repair has been done with Evo Stick metal repair until Allon Whites can effect a permanent job.
Now we can concentrate on the terrible ride quality, tomorrow I will clean and oil the rear springs and grease what I can. By dropping the front tyre pressures to 18psi, that has made a slight difference to ride quality at the expense of heavier steering at walking pace speed.
I will fit adjustable shocks to the front ASAP.