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John Deere Tractors Discussion Forum
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John Deere 1020

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John Davis

07-13-2004 05:16:14




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I have a JD 1020 that is having fuel pump and/or carb problems. After running for approximately two hours (pulling a bushhog) the engine started to run very slugish and finally quit (it would not start again and appeared to be flooded). Gas was leaking from the screen at the bottom of the carb (this happened not long ago and I had the carb rebuilt). Gas will continue to drip at a constant rate until it empties the tank. If I take the gas line off coming from the fuel pump to the carb it will stop leaking, but will leak at the fuel pump. Is this a problem with my carb. or is the fuel pump sending to much gas into the carb. eventually flodding it out? It is almost as if it continuously flows once it gets going. As I mentioned previously I had the carb. rebuilt and it ran fin for about two hours. Any advice would be appreciated.

John

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Peter S.

07-13-2004 09:56:24




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 Re: John Deere 1020 in reply to John Davis, 07-13-2004 05:16:14  
Thanks for posing this question. The answers sort of cleaned up a mystery.

One day I found a small gas leak under my tractor, felt the bottom of the carb, and it was the source. Hasn't done it again. But based on the answer about the float. I'm thinking that maybe the float got stuck one time, causing the leak??

My carb was rebuilt once already, and otherwise runs ok.

I do wonder about adding a fuel filter but can anyone tell me how since the tractor only has threaded metal fuel lines. Or do I have to do some other maintainence procedure to keep the dirt from the fuel tank out??

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Joe P.

07-13-2004 10:11:10




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 Re: Re: John Deere 1020 in reply to Peter S., 07-13-2004 09:56:24  
Cut a section out of a line & splice in automotive fuel hose and filter with hose clamps.



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ET

07-13-2004 09:12:17




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 Re: John Deere 1020 in reply to John Davis, 07-13-2004 05:16:14  
You need to ajust your float height in the carburetor. I had one here at work that driped like that with float leval set to specs. then I raised the float just a little bit and it hasn't been a problem in 5 years.



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John Davis

07-13-2004 09:41:58




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 Re: Re: John Deere 1020 in reply to ET, 07-13-2004 09:12:17  
Thanks for the advice. I am going to do that. On the tractor you worked on, would it run while it was dripping or did it "flood" out?

John



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motto

07-13-2004 07:40:53




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 Re: John Deere 1020 in reply to John Davis, 07-13-2004 05:16:14  
You may need to adjust your load control valve on the carb. Also replace the coil, sometimes after the engine gets hot esp. on mine it would sputter and cut off. A new coil made a big difference.



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John Davis

07-13-2004 07:51:14




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 Re: Re: John Deere 1020 in reply to motto, 07-13-2004 07:40:53  
Thanks for the advice.

Does it make sense that fuel will continue to flow through the fuel pump even when the engine is turned off?



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Bob

07-13-2004 09:10:11




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 Re: Re: Re: John Deere 1020 in reply to John Davis, 07-13-2004 07:51:14  
The fuel pump contains 2 one-way check valves, and the fuel will continue to flow though them (and the pump) with the engine "OFF", as long as the level in the tank is higher than the fuel pump.



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