Go BottomKubota B8200 HST overheats
 | wynsom3
Join Date: Jul 2007 Posts: 4 Alberta Canada 
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2007-07-14 143699
Why would my Kubota B 8200 HST always overheat. I have changed the rad. new thermostat, new belts change coolant yearly.and it still overheats, and this is not doing hard work. Could the impeller have spun off the water pump shaft?
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| kleinchris
Join Date: Jun 2007 Posts: 269 Westminster, Texas
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2007-07-15 143706
What is the primary job you do with your tractor when it isnt overheating? ....
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 | Art White
Join Date: Jan 2000 Posts: 6898 Waterville New York 
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2007-07-15 143708
What are you doing when it is overheating? Have you added anything like a block heater or anything else to the system? ....
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| wynsom3
Join Date: Jul 2007 Posts: 4 Alberta Canada
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2007-07-16 143755
It doesnt mater what I do it overheats.Very light fel work and it overheats. Rototilling on a warm day is out of the question. If Im hooked to the wood splitter it may be ok as long its not to warm a day. ....
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| wynsom3
Join Date: Jul 2007 Posts: 4 Alberta Canada
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2007-07-16 143756
No add ons the block heater is the in block type not in the hoses. I have never seen this type of problem on a motor before. Even winter operation of a snow blower 60 in. size,you have to watch the temp gage and this is on a cold day. This why I tend to believe the impeller amy have spun loose from the. To change the water pump you almost have to pull the rad, its pretty crowded is there. ....
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| kleinchris
Join Date: Jun 2007 Posts: 269 Westminster, Texas
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2007-07-17 143798
Let me rephrase: What were you doing the day before it overheated? The las time the tractor ran like it should, what was the chore? ....
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| Gearhead
Join Date: Jul 2005 Posts: 75 SEVEN mILE OH
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2007-07-19 143855
Try blowing the radiator out. ....
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| wynsom3
Join Date: Jul 2007 Posts: 4 Alberta Canada
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2007-07-25 144016
After alot of elimination by trial and error I removed the water pump to find the impeller loose on the shaft. It did turn to a certain degree but not enought to cool the engine sufficiently under light loads. The Kubota dealer in my area told me that this is not a common problem but he has seen it before where the keyway works loose. ....
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