Major fuel in crankcse

Got a 5011 with oil coming out of the dipstick. has about a thousand hours, got it cheap was used for hobby farming. I'm not real familiar with the fuel system on these tractors. What do you think. anyone have a parts manual for this.

fuel pump is connected to the crankcase lubrication system. Probably the fuel pump shaft seal that divides the lubrication oil from the leak oil..

But did you change the oil and watch the level accumulate, or did you buy it with 1000 hrs without any service ?
When an engine never gets hot, the old engine oil will absorb water, and unused piston rings allow unburnt and unvapourised fuel (cold cranking) to run along into the sump.