D7 17A slobbering at 3rd cylinder

It most likely is Dan but if you can still run it, crack the fuel lines one at a time to make sure. Could be ring problems giving low compression nd missfire when cold aswell as oil consumption.
Later Bob

Bob, thanks for the response. It uses about 1/2 to 1 gallon a day when working hard. We had the same consumption on our old 9U that we used to have.

Dan, I have a D7-17A that had a similar problem. For several years it would miss when started and then would smooth out after a few minutes. Never thought anything about it until last year when the engine started to knock. I thought it was a rod coming loose and looked at many things but could not find the problem until Old Magnet suggested that I try getting a new injector pump and try it on each cylinder until the knock went away. Well guess what it stopped the knock when I put the new injection pump on the cylinder that was causing the knocking sound. After that the engine does not miss when it is first started up. This may or maynot be your problem but an injection pump for each cylinder is not very expensive, less than $150.

Dick, thanks also for the response. I thought of that too. But, would I have the slobber issue on the cylinder if that was the case? The slobber is what made me think it might be a poor spray pattern or dribble or something.

You may have some broken rings on that cylinder causing the oil consumption.

Best way to check would be to move the injector, then the individual pump to another cylinder and see if the problem follows. Not very often the pumps are the problem but does happen, check valves can go bad and even had one where the rack quadrant setscrew got loose and the pumps timing was lost.