Post #7 , glass bowl is 1/2 full of air. It sounds like the deisel is not getting out of the tank. The glass bowl should be full of diesel, as should the filter on it.
/ My 165 dies after running it about a hour it DIES
Did you get a new cap?
When the tractor dies, does the engine just shut off like the stop button was pulled?
Does the engine surge, then then die or just slowly and steadily loose power, then die?
/ My 165 dies after running it about a hour it DIES
I asked a retired MF mechanic about your problem. He suggested a cold AND a hot vaccum test. You may have a cracked fuel line that lets air in after it has warmed up and expanded, opening the crack.
Also my current boss had the same problem you describe and it took a vaccum test to pin point the problem on his tractor as well.
Good Luck.
/ My 165 dies after running it about a hour it DIES