Ford 1900 Leaking Oil

erday I bush hogged for 3 hours. The tractor kept trying to overheat. This tractor is new to me and I know the people we're buying from. They said this has not been a problem even when they used it 2 weeks ago for a long job. At the end of the job I was gonna bring the tractor out of the field, lifted the bush hog, felt dragging. Looked back and saw it getting lower and lower until it was on the ground. I stopped and started to get down and noticed oil dripping from the oil sending unit...then water/coolant pouring out and steam. Didn't dump a gallon of water or quart of oil but was a gush. I shut the tractor off, messaged the owner and he's gonna come give it a look. We have a donkey who will pick things apart so I had to see if I could move the tractor out of the field. It fired up perfect, bush hog raised fine and no more steam, temp gauge was around 200, drove out of the field and parked it. drips of oil came out around the oil pressure sending unit the whole time driving but just drips. not pouring. Would over heating cause the hydraulic to not work and would heat build up pressure of oil enough to come out around the sensor or would it failing cause the overheating.

i have pictures and video but the forum wont let me post them if that would help anyone

The sending units do leak when get some age on them. Just replace it, not expensive. As for over heating check radiator fins, dirt,chaff blocks air flow. Hyd problem dont have good answer.

erday I bush hogged for 3 hours. The tractor kept trying to overheat.

Bush hogging can really plug up a radiator. Stop and clean it every hour.

Would over heating cause the hydraulic to not work and would heat build up pressure of oil enough to come out around the sensor or would it failing cause the overheating.

Overheating the hydraulic oil will cause the hydraulic to be unable to lift but that should not happen from an engine overheating. Most likely you have a filter plugging or your hydraulic lift is leaking oil past the piston. The leaking around the oil sensor is probably not related to either other problem. The oil sensor probably just needs to be tightened a turn.