Pulling a 20ft. disk about 1850 rpm, not much load for this tractor. Had a sudden change in sound(chattering) and loss of power. Stopped and idled it down opened door and sounded choppy, appeared to be more than normal amount of smoke out the bottom engine breather tube. idled back to truck and shut it off. Would this be turbo? Injection pump? or something internal?
JD Tech-engine trouble JD 4850
