Thanks for the reply. Yes, it is a TD5. The engine runs really smooth and pulls really well, until under load or on a hill, then it starves itself of fuel. I put a clear line on the bleed line to watch it when running, I can run it for 1/2 an hour and still pushes air out of filter assembly. I...

Hi, does anyone have any idea of common faults causing constant air bleed back to the fuel tank? The tank has been cleaned of sludge, filter replaced, gauze cleaned, all joints checked etc. When on prime or after driving , air still bleeds back to the tank when seen through a clear pipe (image...