I posted under the engine speed of a YM1700, but haven't got an answer. My question is, I ran my tractor at 1800 and pto 2nd and cut for about a half hour, and it worked great, and even on a hill of probably around 20, it never slowed down or seems to labor in anyway. But after I got it cut, and I speeded up, to full speed to move to another place it let out some white smoke for probably a minute or two, then went clear again. What was that? Unburned fuel, will it hurt anything when it does that?
Smoke
- Thread starter pruntyc
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bruce1966us
Platinum Member
Doesn't seem like the engine is lugging, but the white smoke is usually water in the fuel due to (water in the tank, head gasket, etc.) Or did it happen just one time??
BruceR
Gold Member
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- Aug 31, 2005
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- 429
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- East Texas
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- YM 2000B, JD 110, cub cadet 109, cub cadet 70, cub cadet 100
It has been my experience that white smoke means you are burning water.
Bruce
Bruce
Everyone seems to be missing what I was saying. It only did it the one time, after running it at a lower speed, cutting grass, with the bush hog. I've had it 3 years and it doesn't have any kind of smoke, the rest of the time. It's about like a old VW, that I use to have, by looking at the tail pipe, you didn't know if it was running or not. The tractor is the same way, you see nothing, unless the sun hits it just right, then you see just a very little bit. So I'm sure its not water.
fig
Silver Member
Dick,
Are you sure it was white smoke. I say this because you brought up the sun thing. If I am mowing along a tree line (in shade) and my 1700 lugs a little; the smoke looks white. If I am mowing out in the middle of the pasture (in sunlight) and my 1700 lugs a little; the smoke looks black. I was thinking just like you the first time it happend to me. Just my 2 cents.
Newton
Are you sure it was white smoke. I say this because you brought up the sun thing. If I am mowing along a tree line (in shade) and my 1700 lugs a little; the smoke looks white. If I am mowing out in the middle of the pasture (in sunlight) and my 1700 lugs a little; the smoke looks black. I was thinking just like you the first time it happend to me. Just my 2 cents.
Newton
Mickey_Fx
Veteran Member
Dick, leaking water would not be my first thought. Due to high compression pressure water could only get in when engine not running which doesn't seem to be the problem. One exception to my thought would be if there is a way for cooling water to get into the intake but again that wouldn't account for short duration of what you saw and when you saw it. My best guess is it is some kind of FI/combustion issue.
</font><font color="blue" class="small">( Dick, leaking water would not be my first thought. Due to high compression pressure water could only get in when engine not running which doesn't seem to be the problem. One exception to my thought would be if there is a way for cooling water to get into the intake but again that wouldn't account for short duration of what you saw and when you saw it. My best guess is it is some kind of FI/combustion issue. )</font> <font color="blue"> </font>
I wouldnt say that.If the head gasket was leaking you could definitly burn it causing white smoke while running. It will come in durring the intake stroke. Very common.... My 2000 also has a little bit of smoke occasionally when slightly lugged. I wouldnt even consider it mentionable though.
I wouldnt say that.If the head gasket was leaking you could definitly burn it causing white smoke while running. It will come in durring the intake stroke. Very common.... My 2000 also has a little bit of smoke occasionally when slightly lugged. I wouldnt even consider it mentionable though.
Normmm
Gold Member
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- Yanmar YM2020D Satoh Beaver III Yanmar 1500
Are you sure that the smoke is not a little blue. A small amount of oil burning will look like white smoke. With it only occuring under acceleration I would thing oil.
Mickey_Fx
Veteran Member
</font><font color="blue" class="small">( </font> <font color="black"> </font>
I wouldnt say that.If the head gasket was leaking you could definitly burn it causing white smoke while running. It will come in durring the intake stroke. Very common.... My 2000 also has a little bit of smoke occasionally when slightly lugged. I wouldnt even consider it mentionable though. )</font>
I would think if this was a HG problem you would have hot combustion gases blowing into the cooling system along with signs of overheating and release of pressure at the radiator cap and loss of coolant.
This one time occurance, short in duration and after working under load with no mention of heating problem would rule out a HG problem.
YMMV
I wouldnt say that.If the head gasket was leaking you could definitly burn it causing white smoke while running. It will come in durring the intake stroke. Very common.... My 2000 also has a little bit of smoke occasionally when slightly lugged. I wouldnt even consider it mentionable though. )</font>
I would think if this was a HG problem you would have hot combustion gases blowing into the cooling system along with signs of overheating and release of pressure at the radiator cap and loss of coolant.
This one time occurance, short in duration and after working under load with no mention of heating problem would rule out a HG problem.
YMMV
