IH 1066 tractor problem - white smoke, clicking, loss of power

[kkjpmc]

Hi
Was disking a field and lost power, heard clicking noise and saw white smoke coming out from below. Have I blown the engine? How bad is this ? Relatively new to farming. Have 50 acres for alfalfa and oats and was prepping some for replanting. Time and water is running ! Help !
Thanks, PMC

 

[wmonroe]

Any oil leaking anywhere? Does the engine still start and run? Where does the noise seem to be coming from, bottom end or top end?