deerenutz52
New User
Looking for some help. My 720 has been collecting quite a bit of fuel in the engine oil. I have removed the covers and run the tractor looking for leaks as the service manual describes, but don't see anything. I removed the transfer pump and don't see evidence of a leak, not that it wouldn't be possible, but don't see any trace of fuel around the shaft or anywhere. What I haven't been able to find out is where do the return lines from the injector nozzles return the fuel to? They seem to just dead end into the cylinder head, and the service manual I have mentions nothing about them. Also since I don't see any fuel leaks, is it possible for the fuel to be leaking into the oil that lubes the injector pumps, and if that be the case, does anyone know a good place to send them to be rebuilt?