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Case 1845B engine oil overfull

apm · 2013-09-12 14:34

I've got an 1845B with the Case 188D engine. After about 8 hours of heavy use, the engine oil looks to be a couple of quarts overfull. I checked the oil before starting the day and expected it to be a little low at the end of the day because it seems to burn a little oil (exhaust smoke). What can add to the oil in the crankcase. It doesn't seem to have a diesel smell. Thanks, Greg

Replies10
  1. #1bill onthehill2013-09-13 20:35

    What is the coolant level like? I would ease the drain plug loose and see if you have any coolant coming out.

  2. #2monster762013-09-13 21:25

    i would get an oil sample

  3. #3mitch5042013-09-13 21:43

    The only hydraulic pump on this machine is shaft drive, isn't it?

  4. #474inchShovel2013-09-14 00:14

    If the engine is making oil, most likely culprit is the seal on the injection pump. Diesel oil is getting into the crankcase through this seal. Rule out water first, see above, or look for milky oil if its water. If its diesel, oil will be thinner.

  5. #5Scrub Puller2013-09-14 00:39

    Yair . . . the old bush way of helping to figure if you have diesel or hydraulic oil in the engine was to set up a piece of glass at about forty five degrees and drip on some new engine oil and some of the suspect oil side by side. With both oils at ambient oil contaminated with diesel will win the race to the bottom . . . as 74inchShovel said, it's thinner. Cheers.

  6. #6kshansen2013-09-14 07:08

    Scrub, That reminds me of a tool Mobil oil sold years ago, I have one somewhere. It was like a plastic ruler with a couple small reservoirs at one end with a narrow groove going down from each one. The opposite end had a 45º angle on the bottom. You put a sample of new oil in one reservoir and used oil in the other then pushed down on the other end to incline the tool and compared the speed the oils flowed. If oil was supposed to be say 30 you could put 20 in the other side to see if it was in fact thinned out that much. I'll look around to see if I can find a picture of this tool.

  7. #7Walker12013-09-14 11:50

    Take paper towel out to the engine. After running the engine for a minute or two, pull the dipstick, and let a drop of oil drip onto the paper towel. If there is diesel in it, it will form a ring around the outside of the oil drop.

  8. #8heymccall2013-09-18 01:44

    Lift pump diaphragm has a pinhole, allowing pressurized fuel to crankcase.

  9. #9apm2013-09-18 13:47

    Thanks for all of the great suggestions. I will get back to it tomorrow. In the meantime the dozer's down and it's needed first. Wonder what it'd be like to own NEW machinery? Greg

  10. #10Lil' Puss2013-09-18 14:41

    It's a case of "You pay now or you pay later, but you DO pay." Unfortunately.