Problem solved!
Some smart a** removed air bleed valve from pipe. Now when I put new air bleed valve in, everything works as it should.
Thanks to everyone participating in this really useful thread.
New air bleed valve installed in the rear outer pipe.
First thing I noticed is much smoother engine (absolutely smooth!) when idling.:)
I must burn some fuel now to find out what is happening when there is less than half fuel in the tank.
Ok. As I understand, air bleed valve is missing in my fuel filter housing. Was that valve installed in all Td5's?
I checked all four pipes and only thing I found there is non return valve.
I will order WJN500110 today.
Hello everyone! I'm new here and this is my first post. Sorry for my english...
I have Disco Td5, late 2001 model (EU3 engine) with same problem. It is hard to start the car when gas tank is more than half empty.
I have new pump, new engine head (because of the crack in the injector seat)...