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40 JD G
Regular
Joined: 13 May 2005
Posts: 167
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 Posted: Sat Feb 09, 2013 3:20 pm Post subject: JD 720 Fuel Problems |
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I am looking at a 720 Diesel the guy said it just quit like he shut the switch off. He thinks it might be a injection problem, is there anything i could look for, any simple fixes. Thanks
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Paul_IN
Regular
Joined: 20 Nov 2005
Posts: 185
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| Posted: Sat Feb 09, 2013 5:05 pm Post subject: Re: JD 720 Fuel Problems |
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Maybe it ran out of fuel? Could be a blockage got in the sediment bowl even if the tank has fuel. But I doubt this would shut it off so quickly, it would probably slow down and die.
Another idea is the rack spring on the right hand side broke. The governor works against this spring and if it broke the governor would probably completely close the rack.
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Tx Jim
Tractor Guru
Joined: 14 Feb 1999
Posts: 13145
Location: Coyote Flats,Tx
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| Posted: Sun Feb 10, 2013 4:05 am Post subject: Re: JD 720 Fuel Problems |
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First thing I'd recommend is checking fuel flow out of tank. I wonder how long since fuel filters were changed?
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wilamayb
Tractor Expert
Joined: 30 Jul 2007
Posts: 2596
Location: Union City, TN
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| Posted: Sun Feb 10, 2013 1:42 pm Post subject: Re: JD 720 Fuel Problems |
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How about that cam idler gear? After you check for fuel flow I'd check to see that the tappets were actually functioning.
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