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Fuel Leak 6430 John Deere
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kodiak2
Posted 1/21/2012 14:31 (#2176370)
Subject: Fuel Leak 6430 John Deere


SE SD
I have fuel dripping from my 6430, its coming from above the fuel pump thats mounted between the oil pan and tractor frame. Real hard to tell exactly where its coming from. It looks like the flexible fuel lines are saturated with fuel. Is it common for these fuel lines, to be rotten and seep fuel. With the loader on its very hard to get a good look. This is a 2008 model John Deere 6430 with 2400 hrs. It just seems whatever line on the left side of the engine is either collecting dust or wet so i suspect cheap lines. Any input would be appreciated. Thanks
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Dekalb
Posted 1/21/2012 14:50 (#2176392 - in reply to #2176370)
Subject: RE: Fuel Leak 6430 John Deere


Our 7220 did the same thing a couple yrs ago. It ended up being the cheap braided hoses that deere used, the fuel would just weep thru them. Went and replaced them all with standard rubber fuel line from napa, no leaks yet.
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balefire
Posted 1/21/2012 14:50 (#2176393 - in reply to #2176370)
Subject: Re: Fuel Leak 6430 John Deere



Oxford County, ON
If you have the braided fuel line (ours is a 6420), we were warned to change to regular rubber lines because those braided ones will fail, starting with what yours are doing.
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G. DAY
Posted 1/21/2012 16:05 (#2176527 - in reply to #2176370)
Subject: RE: Fuel Leak 6430 John Deere



Fresno, California
I can't believe John Deere would put that cheap hose on a new tractor, changed two before they were two years old.

George

Edited by G. DAY 1/21/2012 22:47
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gm2000
Posted 1/21/2012 19:21 (#2176929 - in reply to #2176527)
Subject: Re: Fuel Leak 6430 John Deere


se sd
I just had same problem a weak ago. a line that is behind the two fuel filters. it is a steal line the turns into a mesh line is the one that i replace. i used a air hose to blow all the wet off lines then just turn the key on and the fuel pump should start and make a hose wet again.
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tommy_harrell
Posted 1/21/2012 23:57 (#2177578 - in reply to #2176370)
Subject: RE: Fuel Leak 6430 John Deere


Central Missouri
Our 6410, 6420, and 6430 have all done this. Lift pump to fuel filter, primary filter to secondary, return lines, lines to and from fuel cooler. Even added a check valve to the 6410 to keep the fuel from draining back to the tank when it sits a while.


Tommy
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