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Light white smoke

1

13fx

Member
Picked up an old case a few
weeks ago In non running
condition. Got it running good
and am now dialing it in. When
the tractor idles, or on a quick
acceleration the stack had a
very light white smoke. When
first firing up there is a very
small amount of liquid spray
from exhaust as well. I checked
the oil for coolant and the
coolant for oil, but found
neither in the other. The
radiator level doesn't seem to
drop, and it's been run for 3-5
hours since getting it running.
I'm still leaning towards a
coolant leak, bit what are
y'all's thoughts?
 
When I start a lawnmower and use too much choke, the raw gas washes the oil off the cylinder walls and white smoke.

Occasionally the Farmall C will puff a little white smoke when I start it. Not all the time. Again I think the white smoke is caused by raw gas in cylinders.

I've never blown a head gasket so I have no idea if antifreeze causes white smoke.
 
If its antifreeze it will have a sweet taste/ smell. I know it when I smell it. If your ice tea has that taste call the cops and change the dependents on the life insurance. :)
 
I'm thinking that there is condensation in the exhaust and it slobbers out , run the tractor until it is good and hot. Light white smoke at start up sounds about right until your engine has reached operating temperature.
 
My neighbor has a 1070 that always has a bit of white smoke from the stack. Always kinda wondered why.
 
You could run a combustion gas detection test, that would let you know for sure if it was coolant in the exhaust.

Won't tell you where it's leaking, just yes or no.
 
White to gray smoke can also be caused by an engine that is in the lower use stage of oil consumption. In my opinion if you have not used the tractor under a fair load for a couple hours you really have no way of knowing the true condition of the engine. Heavier oil consumption can lead to light blue puffs off exhaust especially under rpm changes like idle to half throttle etc. It yours now uses it keep an eye on the engine temp, coolant level and also checking for water in oil.
 
Most of what is discribed as white smoke from a running engine is actually light blue smoke. You didnt say if gas or diesel and that males a huge difference on diagnosis from afar. Coolant in exhaust is extremely easy to diagnose, smell it. Grab a bit of the exhaust liquid on a fingertip and touch off to your tonque and spit it out, antifreeze is VERY sweet.
 
Which case makes a lot difference. Tell us that and we can be more helpful. Some white smoke til it's warm is not an issue as long as it's not antifreeze.
 
Head gasket will blow white smoke but will look like a turbo sucking engine oil quantity. I had the old farm truck blow a gasket as I turned a corner off the highway once 45 years ago. Put a new gasket on it and tightened the bolts down and was fine after that still has the same gasket in it now. I would just keep track of the oil and coolant till you can take it out and work it's tail off for a day or so then start worrying about it if it still does it.
 
Could be just vapor, find a way to work it and get the crud worked out of it then see what you have.
 

I had a Farmall 460 once that sounded like the same problem. I didn't want to tear the motor apart as I was getting ready to get rid of the tractor. When I would start it after it sat a week, there would be a couple of drips of antifreeze that would come out of the exhaust. There was no coolant in the oil. When it ran for 20 or 30 seconds, the problem went away. I talked to a "red jammies guy" about it and he said that he thought it sounded like it was getting a pin hole leak in the head gasket. He suggested adding a can of radiator stop leak to the coolant to seal the leak. I did that and the problem went away. I'm not saying it was a permanent fix but it kicked the can down the road for a while. In your case, it might buy you a little time to get by until you can fix it right. Three or four months later I got rid of the tractor so I don't know how it finally ended up.
 
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