resovoir on 1995 diesel compact tractor, 1720

[rclaxton]

I have checked the thermostat, water pump, and I still have the red coolant light come on when the resovoir is low of water. The resovoir blows the water out of it, in the overflow pipe.I fill the resovoir back up with water about half full, and it comes out again the overflow pipe. I,m not losing any antifreeze, nor is the headgasket bad, so someone please tell me what is my problem, I love my little tractor. Thank you so very much, I,m at my wits end on this one.
 

[Bob7337]

Check your radidtor cap or the one on the resovoir. It map be weak and lets the coolant bypass and go out the overflow. I would probably just get a new cap and see what happens. I bet cap will fix problem
 

[marloweg]

why do you say head gasket is ok if it has blown out in to the water jacket you will not see it and might not leek in to the cylinder
 

[DiyDave]

What tests have you done, to know it is not a blown head gasket?? those little fords are famous for head gasket problems, double check, is my suggestion.