On my 730 diesel, I had a problem with the injection pump leaking fuel into the crankcase so I had it rebuilt. Since reinstalling it, I've had an issue with the tractor blowing oil out of the exhaust. It doesn't appear to be engine oil because I just changed oil and it's very clean. The oil coming out of the exhaust is very black and sooty. It starts to blow out oil after a few minutes of running and it mainly leaks out between the exhaust pipe and the muffler. I took the pipe and muffler off and saw that the inside of the exhaust manifold is covered with oil.
Since reinstalling the pump, I've also noticed that the tractor is always blowing out blue smoke which I'm guessing is due to the excess oil sitting in the exhaust manifold and pipe. The tractor seems to blow out more black oil and blue smoke when running the engine faster and putting it under heavier loads. Does the injection pump need to be timed to the engine? If so, what is the procedure? Lastly, I had the injectors tested and one of them was rebuilt with a new valve. I reinstalled the injectors and the tractor continues to blow oil and smoke out of the exhaust. Any help on this issue would be greatly appreciated.
Since reinstalling the pump, I've also noticed that the tractor is always blowing out blue smoke which I'm guessing is due to the excess oil sitting in the exhaust manifold and pipe. The tractor seems to blow out more black oil and blue smoke when running the engine faster and putting it under heavier loads. Does the injection pump need to be timed to the engine? If so, what is the procedure? Lastly, I had the injectors tested and one of them was rebuilt with a new valve. I reinstalled the injectors and the tractor continues to blow oil and smoke out of the exhaust. Any help on this issue would be greatly appreciated.