For the Techys/Engineers. The challenge goes on. Having repaired my fuel sender return connection with "common" sender parts from used Mondeo senders X 2 , I am still trying to understand why the return line has catastrophically blown out twice disabling the car and spraying fuel every where. Earlier post I mentioned back pressure on connection as a possible blow out cause if the return line was blocked in the sender. See photos of my two "used senders" I blew in the return line of both. On one free flow of air on the other totally blocked. If you look at JPeg 1065 you will see that where the return pipe goes into the cylinder there is a round "gizmo". In Jpeg 1066 there is no "gizmo" Needless to say its the one with the gizmo that prevents air flow. The gizmo is shown assembled and disassembled in Jpegs 1067 and 1068. My concern is if my sender has the gizmo fitted it could be causing the back pressure and the return connection to blow.
Questions:
1. Does anybody know what the Gizmo is and what does it do?
2. How should it work?
3. Most importantly does my 2006 Petrol Plus 4 have a sender with or without gizmo?
I will ask Morgan as well.

I know the immediate answer may be "just change the sender". See my post above on removal issues.

Plus I hate it when I have got a problem and I don't "understand" whats causing it.
The plot thickens.

Attached Images
IMG_1065.JPG (2.05 MB, 25 downloads)
IMG_1066.JPG (1.69 MB, 18 downloads)
IMG_1067.JPG (1.66 MB, 16 downloads)
IMG_1068.JPG (2.08 MB, 15 downloads)
Last edited by Eurosystem0; 21/08/16 02:30 PM.