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 | role12
Join Date: Sep 2009 Posts: 3 texas 
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2009-09-30 166052
i have a 4010 john deere while i was mowing it lost power and then it turned off, i cranked it and it started but lost power again. i change the fuel filter and it did not start so i released the nut to the fuel line from the fuel injection pump to the tank and it turned on with no problem, and as i tightened the nut it turned off, i would release the nut and it turned on again, i clean the return line, and it still did the same thing, could it be the fuel injection pump
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 | DRankin
Join Date: Jan 2000 Posts: 5116 Northern Nevada 
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2009-09-30 166064
Just as a matter of procedure........ did you check to see if the air filter is clean and the fuel tank is properly vented? ....
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 | Art White
Join Date: Jan 2000 Posts: 6898 Waterville New York
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2009-09-30 166067
sounds like the return line is still clogged. With the return line disconnected will it run okay? ....
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| jdgreen
Join Date: Jul 2003 Posts: 232 Maryland
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2009-09-30 166083
Do you have a compact utility 4010 or a 1960's 4010 row-crop tractor? It does sound as if you could have a clogged return line. If I know which 4010 you have I might be able to give more specific info. ....
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| role12
Join Date: Sep 2009 Posts: 3 texas
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2009-10-01 166089
i checked the return line took it all apart, and it still did the same thing, so i asked a friend to check it, and he took the fuel injection pump off, and noticed that it had a worn out bearing and the plastic seal which holds it was bridle and was breaking in small pieces which would get in the return line clogging it. I appreciate you all help, and i hope this will help somebody in the future. The rest of the fuel pump was in excellent condition, and he found no water damage inside thank god. ....
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