Engine oil going missing

[Anonymous-0]

My particular problem is with a Case IH Maxxum 5130 with the 5.9 Cummins. I know this isn"t an antique but I have had a lot of help here in the past and hope no one minds. I am loosing about 6 liters of engine oil an hour. There is absolutely no evidence of an external leak, nor oil in rad, no discoloration of tranny fluid and no smoking from exhaust. I have lost about 18 liters total and am afraid to run it any more. If anyone can shed some light on this, I would be indebted. Perhaps I should stick to farming with antiques!
Lar

 

[Mark - IN.]

6 litres per hour? Thats an aweful lot and only holds like 10 litres to begin with. There has to be a sign somewhere. On the ground, on a frame rail, out the stack, out a seal, out somewhere. Something has to be oiled. Is that just soot in the stack, or grunge?

 

[Anonymous-0]

turbo and it hot anuff that you will see no smoke

 

[glennster]

could be a seal for the lube oil on the turbo is bad, if so the turbo would force the oil in the motor and it would burn with the diesel. would not show any leaks .

 

[Mark - IN.]

Good bet.

 

[[email protected]]

Though I'm not versed on the model in question, I would look at the cavity between the engine and tranny. My guess is that your clutch is about to sling oil as it never has before. The front seal of the transmission should keep a barrier from incoming fluids. With this being said, I'm betting on the rear main seal being the culprit. Many times this is a rope seal which is squeezed into a channel with a wiper seal in behind. The fact that there is no leaks and no smoke tells me to look at the back end. The cavity between the two could hold several gallons before leaking out. 6 liters per hour is probably a very extreme, but could contain alot before seeing signs. Good luck.

 

[the tractor vet]

IF it ain't dripping out then it is going out the pipe from the turbo thru the engine and being burnt . Not the first time i have seen that happen . Replace the turbo .

 

[Steven f/AZ]

My vote goes for turbo seal leaking the oil directly into the intake and burning it up...

 

[[email protected]]

We had one with a blown turbo seal. The thing smoked like a freight train. Burning oil will cause smoke, white smoke and lots of it. The amount in question should show color if its burning.

 

[Jim J]

The 5130 don't have a turbo. Unless some one put one on. Is there a crankcase ventilation system

 

[RodinNS]

Well, if it's holding all that oil in the bellhousing, get under there and disturb the cotter pin hanging from the bottom of the bell housing. If that's not there, find the hole in the bottom and poke something up through it and clean it out. If you get soaked with oil I guess you know where the 18 L went. Otherwise it's got to be burning the oil...

Rod

 

[Anonymous-0]

Thanks for all the replies. Yes the 5130 is natural - no turbo so that rules some things out. There is absolutely no smoke so it can't be burning the oil. It does have a breather and there is some pressure (air) that I can feel but there isn't any oil exiting the tube. The clutch is wet, so there is no weeping hole underneath. And believe me, I've been under that tractor so long examining every little nook and cranny I could draw it in my sleep. I was figuring the engine oil must be going out the rear seal and into the tranny fluid, but the oil there doesn't look contaminated at all. Up until now, the engine oil level wouldn't change a hair between change intervals. This is an "all of a sudden" major leak.
Again, thanks for all the imput,
Lar

 

[the tractor vet]

Only if it is on the exhaust side , if it is on the inlet side then you will never notice it. Oil pressure over comes boost pressure .

 

[Anonymous-0]

When I got my Cat rebuilt it was going through a lot of oil and had to come out again. It showed absolutely no smoke out the exhaust even though that's where it was going. It turns out the rings didn't seat properly. How many hours on it? They said a valve problem could cause it as well. Hopefully it's something simple. Dave

 

[RAB]

Does it lose that much at idle? If it is going through the engine, idling for half an hour will show up that sort of oil usage for sure - it could not easily burn 3 litres running slow, and possibly cool, without some indication of smoke or wet stacking, I would have thought.
RAB

 

[Nolan]

Take it fwiw. My old 8N would burn about half a gallon of engine oil per hour, and hardly smoked at all. Always found that astonishing.

To say it was worn out would be an understatement. I took the head off once and found I could almost look at the backside of the rings when I'd push a piston over to the side.

Ran fine this way.

 

[johndeereman]

have the fuel injectors checked heard of this alot had a jd 4020 do it emptied the cranckcase in 20 minutes boss chewed me for not checking oil i said we checked it yesterday and it started raining so it never got ran no puddles underneath didnt smoke at all.

 

[Anonymous-0]

The tractor has only 3200 hours. I've run it mostly at rpm speed for two reasons: to finish baling my soybean straw and also thought at that speed any leaks would be more obvious. I have let it idle to warm up but not for an hour to compare rate of oil loss. I can't bring myself to accept that amount of oil is being burnt off. BUT, if it is, how do I confirm it??? Again, this hasn't been a gradual increase in oil loss but rather a sudden and drastic event.
Lar

 

[Anonymous-0]

Thanks for the reply. I admit to only knowing the basics of how an engine operates, but I haven't a clue how the injectors can be responsible for this. Can you explain further so I know how this is possible? How do I "test" to confirm or rule this out?
Thanx again for the help,
Lar

 

[onefarmer]

If a ring broke on one cylinder and it was burning all that oil thru just the one seems like it would blow blue like crazy. But what is all that oil was being distibuted evenly to all cylinders?

Is the crankcase vent plumbed to the intake in any way?

I only know enough on injector pumps to get in trouble, but could the oil be getting in the i-pump and pushed thru all the injectors?

I don"t see how the injectors themselves could be an issue.

If the rear main was leaking into the tranny seems like the black diesel oil would show up but if not, is the tranny oil level rising?

 

[Anonymous-0]

I was thinking about your oil problem this morning as I was greasing my White 120 with the 5.9 Cummins. Could the oil be entering the injection pump thru a bad seal? Could it be sucked in thru the lift pump? As this happened all of a sudden, it has to be something simple like this. Hope you find the oil leak. Let us knnw what you find!