I work on a diesel electric drive ship and we have three Caterpillar 3516s that we use as our main gen-sets.
I just went down to light one off and found that the oil level on the dip stick was almost six inches above normal, which equaled to almost a half full oil sump.
Recently a tune-up was done on that engine and it has only about one hour of running time on it since then. During that one hour running time/test of our tune up everything checked out to be just fine. Good cylinder exhaust temps…etc.
Now to find out where the oil level rise has come from im thinking its Fuel Oil but I am not sure and also not sure what went wrong in our tune-up to cause this as we do these every 2000 hours on our Main Generators and Ship Service Generators:
Things to check off or at least that I have so far…
J/W head tank level which appears to be fine and no signs of the level dropping or dropped.
L/O inlet valves closed (one was slightly cracked open but only by a hairline crack or so basiclly not enough for me think that is the problem.)
Has anyone else had this problem? Any help or suggestion would be greatly appriciated, Thank you!