I'm at the stage where I'm about to hook up the fuel lines to the Isuzu.
The existing fuel lines are 6mm O/D plastic tube, with a section of rubber hose connected to the end (originally a V8 county that had a 200tdi conversion).
The pipes on the 4bd1 are 10mm O/D.

I'm not sure if the lines I currently have are basically original or whether they were changed with 200tdi conversion.

Is the 6mm OD plastic tube big enough for the isuzu?