engine oil is pouring out of breather pipe on tractor,exhaust smoke excessive and white.
tractor make fendt 260v compact tractor no cab, engine oil checked before commencing flail mowing, after 3 rounds of small field engine died clouds white smoke from breather pipe everything excessively hot. unable to restart, left to cool engine restarted but engine running poorly then when warms oil runs out of breather pipe.
Does anyone know possible causes and what might be needed to repair?

trebor S, July 2008

I've had the same symptoms on my 135. Now I've lifted the head and the gasket is blown between 2 cylinders. Hopefully a new gasket will solve it.

spoutwell, April 2010

Seems like you have blown a piston. This results in excessive crankcase pressure (hence oil blowing out of breathers) and the burning of large quantities of oil.
Another possibility is a badly blown head gasket where combustion pressure is blowing into an oilway, though I think this is less likely.
A compression test may give you a clue.
You don't say if overheating happened first, if it did I would go with the piston/rings theory. At any rate, looks like you will have lift the head as a first step, then all may be revealled!

Mr. Toad, July 2008