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Farmall & IHC Tractors Discussion Forum
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300U problem, need help

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300Randy

09-21-2005 08:06:10




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Whats wrong with my 300U. I was having some overheating problems and have fixed that by cleaning the radiator out real good inside and out. The problem now is that after 10 minutes to even a half hour all of a sudden the engine starts running rough,rpms going up and down, coughing and sputtering and then dies. I have checked and I'm getting good gas flow to the carb. I let the tractor cool down then it starts fine again and will run good again for awhile. What could be the problem?

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PAULIH300

09-21-2005 08:08:52




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 Re: 300U problem, need help in reply to 300Randy, 09-21-2005 08:06:10  
Coil.Sounds like its overheating.Feel it when its been run for a while.Should be hot if its bad.Could be a bum coil,a 6V coil used with 12V,or no resistor.



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300Randy

09-21-2005 11:19:55




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 Re: 300U problem, need help in reply to PAULIH300, 09-21-2005 08:08:52  
I switched the tractor over to 12 volt about 3 years ago and added a ballast resistor. Can I get rid of that and just replace it with a 12 volt coil?



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PAULIH300

09-21-2005 12:40:14




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 Re: 300U problem, need help in reply to 300Randy, 09-21-2005 11:19:55  
Make sure the 12V coil you get says "external resistor not required".



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