JD 210 Side Hill Mowing Sputter
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You did a nice job but your tractor is really a Late Model and this should probably be posted over there. Roger
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Howdy All,
I recently acquired a 1978 JD 210. I absolutely love this machine! I have noticed that if I mow on an incline (side mow) and the right side of the tractor is facing up hill, the engine will begin to sputter. At that point I have to back up and quickly get to a more level area and the engine will smooth out again. I am assuming this is due to the fact that the Carb Float is hinged on the right side. This probably causes a lean condition due to the level in the float bowl being tilted. I have the float on the carb set per the manual at 11/64" above the carb casting. This setting is different than setting the float so that it is level with the carb casting as viewed with the carb upside down. I have read peoples posts and they set their floats so they are level with the casting. Hmmmm. By the way the hill I mow is only about 100 feet long by 40' wide. So I mow the steepest part of this hill in reverse,(4 passes), so that the right side of the tractor faces down hill. The engine runs fine if I do this. Anybody else experience this?
Thanks in advance for any suggestions!
Hec
I recently acquired a 1978 JD 210. I absolutely love this machine! I have noticed that if I mow on an incline (side mow) and the right side of the tractor is facing up hill, the engine will begin to sputter. At that point I have to back up and quickly get to a more level area and the engine will smooth out again. I am assuming this is due to the fact that the Carb Float is hinged on the right side. This probably causes a lean condition due to the level in the float bowl being tilted. I have the float on the carb set per the manual at 11/64" above the carb casting. This setting is different than setting the float so that it is level with the carb casting as viewed with the carb upside down. I have read peoples posts and they set their floats so they are level with the casting. Hmmmm. By the way the hill I mow is only about 100 feet long by 40' wide. So I mow the steepest part of this hill in reverse,(4 passes), so that the right side of the tractor faces down hill. The engine runs fine if I do this. Anybody else experience this?
Thanks in advance for any suggestions!
Hec
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871 Posts
Scott,
Yes it is. In other words the gap between the carb body and float is greater than 11/16" if it is set to be level.
Hec
Yes it is. In other words the gap between the carb body and float is greater than 11/16" if it is set to be level.
Hec
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1,163 Posts
Hector ,in the parts manual [pc1473] [aug -89 .there is a spring .part number M47422 that goes under the float .it helped me with my uneven ground ,might work for you .we are talking about a carter cab ,right. hope this helps .David
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1,893 Posts
The spring is intended for rough travels. I have rough travels in a corn field which I now mow, converted to a grassy field. I have never encountered any engine sputter nor stumble w/o that spring.
Give it a try. You won't be out anything. You could always attempt adjusting the float first.
Give it a try. You won't be out anything. You could always attempt adjusting the float first.
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871 Posts
David, Scott,
I have the spring but haven't installed it yet. I would think the spring would keep the float from dropping due to bouncing around. When the carb is tilted, I think the opposite is happening. The float is in a raised position not allowing gas in due to an extended lever arm created by the fuel beneath the float in this position. See my crappy little pic. Remember that the float is pivoting on the right side of the tractor. The diagram on the left represents the float bowl and float on level ground. The one in the middle represents the tractor on a hill with the right side facing up hill. The one on the right represents the tractor with the right side facing down hill. B represents buoyant force applied to the float and W represents weight of the float. The red line would be the fuel level line. I am I wrong here? I know a guy with a 214 that does the same thing. He is the one who told me to mow backwards on the steeper part of my property.
Hec
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I have the spring but haven't installed it yet. I would think the spring would keep the float from dropping due to bouncing around. When the carb is tilted, I think the opposite is happening. The float is in a raised position not allowing gas in due to an extended lever arm created by the fuel beneath the float in this position. See my crappy little pic. Remember that the float is pivoting on the right side of the tractor. The diagram on the left represents the float bowl and float on level ground. The one in the middle represents the tractor on a hill with the right side facing up hill. The one on the right represents the tractor with the right side facing down hill. B represents buoyant force applied to the float and W represents weight of the float. The red line would be the fuel level line. I am I wrong here? I know a guy with a 214 that does the same thing. He is the one who told me to mow backwards on the steeper part of my property.
Hec
Hector,
I have never had the issue you describe, so I would focus on the float. it is possible that it has been adjusted too many times, and the pivot is no longer where it should be.
I don't think the spring will help, I think that is to prevent the bowl from over filling. One thing to remember with your diagram above, is that the float will always go to the point where W = B, but even in the +/- 1/4" that would be you should still get plenty of gas to the jet.
I would readjust your float to 11/64, and re-try, if that doesn't work, I would spend the $15-20 for a new float, adjust that to spec and try again.
I have never had the issue you describe, so I would focus on the float. it is possible that it has been adjusted too many times, and the pivot is no longer where it should be.
I don't think the spring will help, I think that is to prevent the bowl from over filling. One thing to remember with your diagram above, is that the float will always go to the point where W = B, but even in the +/- 1/4" that would be you should still get plenty of gas to the jet.
I would readjust your float to 11/64, and re-try, if that doesn't work, I would spend the $15-20 for a new float, adjust that to spec and try again.
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871 Posts
k b
The float is new and is currently adjusted to 11/64" off the carb body, but doesn't appear level like it does in the Kohler manual. It looks like the float is tilted downward a little. I would need a larger dimension than 11/64" to make it level like the manual shows.
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Hec
The float is new and is currently adjusted to 11/64" off the carb body, but doesn't appear level like it does in the Kohler manual. It looks like the float is tilted downward a little. I would need a larger dimension than 11/64" to make it level like the manual shows.
Hec
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