Working on an old Bobcat 632 with the 4 cylinder Ford gas engine, when the engine running engine oil was pouring out of a breather hose at the valve cover, another tech rigged up an external sump with hoses and oil runs from the engine into the sump and back to the engine to try and slow the oil coming out at the top of the engine, it's like something is plugged internally and the oil doesn't drain back quick enough.. while loading on a trailer and the skid steer being on a heavy angle the oil didn't drain back enough and started to get into the muffler heavily and thick smoke billowed out until it was levelled and ran a bit to clear out, machine runs and drives great otherwise… any ideas out there or has anyone came across this before? Thanks