My AC 5050 is putting out a huge amount of blue smoke out the exhaust. Its also putting out a good bit of smoke from under the hood. Its so bad you can't run it too long without getting a huge headache. Any suggestions as to what might be the problem? Thanks
Blue Smoke Rollin
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geneP
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- Central Mississippi, USA
- Tractor
- Case-International 385, Kubota L5450 w/LA1150A loader
TractorData says that tractor is a 3 cyl diesel. If the blue smoke is accompanied by oil consumption, my guess is that the rings are worn, at a minimum. The smoke from under the hood would be blow-by of compression into the crankcase and out through the vent tube. I hope there is a least costly cause.
3RRL
Super Member
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- 55HP 4WD KAMA 554 and 4 x 4 Jinma 284
Over filling the oil can cause it to blow out through vents and end up dripping onto the exhaust manifold where it will burn up and cause a bunch of smoke. The smoke out of the exhaust sounds like what Gene pointed out...perhaps a good reason for them to overfill the oil in the first place? However, if it's not rings, it could be your fuel elivery is too rich. I've seen where the rack on the injector pump is backed out too far and causes this also...but it's usually black...no mistaking with blue.
How many hours on the tractor?
How many hours on the tractor?
It has in excess of 4000 hours, after that the wires were cut, so I really don't have any idea of the actual hours. I do know that I have seen oil coming out from around the cap, the original gasket is gone, so we fabricated one. The smoke from under the hood doesn't smell like burnt oil, but it may be a combination of both blow by and oil spill over. Again, thanks for any suggestions, I've posted a few other places and seem to be getting the same type of answers. Im just hoping its not something expensive, and some miracle easy cure is out there for this. We've waited a long time to get our own tractor and have so many plans for it.
Thanks again for everyones help
Thanks again for everyones help
GaryE
Platinum Member
Why not try draining the oil. Save a sample and have it tested. Refill the crankcase to spec and see what happens. You may not have any problems, you may have a stuck injector or you may have some worn rings. This method should answer those question.
Good luck,
Gary
Good luck,
Gary
Charolais
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- south/central Va.
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- Deutz Fahr Agrofarm 100, Stoll loader, bucket, forks & root grapple
With the engine being over the full mark, you could have a primary fuel pump(if it has one) that's leaking diesel fuel back in the crankcase. I've seen it happen a few times. Pull the dip stick and see if it oil smells like diesel fuel. If this is the case don't run it until you replace the fuel pump and change the oil. If you run it long with diesel fuel in the crankcase it'll ruin the engine.
If the seller just had to much oil in it ,drain it out down to the full mark.
If the seller just had to much oil in it ,drain it out down to the full mark.
GaryE
Platinum Member
slowrev
Elite Member
If over full, it could be hydraulic fluid leaking back past the pump seal into the crank sump.
Spent some time on the tractor yesterday...heres what I have found so far. The coolant level stays up when running. The oil is now a darker brown (was clear when we started, but is definately darker now from running it) Does not appear to have fuel in the oil...no diesel smell. We did take off the crank case vent and found it had a lot of oil in it and appeared pretty gummed up...the manual says take it off once a year and clean with a safe cleaning fluid (what would you suggest). We also see that someone has hooked up the vent tube so that it runs directly into the muffler and not out onto the ground. A friend told me that it might be acting as a syphon, so we plan to disconnect that. We also found a manifold gasket laying loose in the engine compartment, so we plan to take off the exhaust manifold to see if one is missing or if it was a leftover part that just fell in the wrong place. I also have a question about the oil cap. The one on it has a breather at the top, it is not a sealed cap...it seems to be letting the oil come out of the block and run all over the place. Is this tractor supposed to have one of that type, or a sealed one. The parts manual shows one that seems to be a sealed. Guess I have a lot of questions, but Im not the greatest at tractor mechanics, so any help would be appreciated. We are planning to drain the oil and start over with fresh Thanks again.
