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AC7040 fuel line
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jazzsuds View Drop Down
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Joined: 21 May 2010
Location: AZ
Points: 96 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jazzsuds Quote  Post ReplyReply Direct Link To This Post Topic: AC7040 fuel line
    Posted: 27 Apr 2017 at 1:38pm
I have an AC 7040 and I have fuel running from a 1/4" black tube under my deck on the fuel pump side when tractor is running. What is that tube, where does it go to and how do I fix it? 

Edited by jazzsuds - 27 Apr 2017 at 1:39pm
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 22328 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 27 Apr 2017 at 1:56pm
Cut it in two where the bad spot is and splice it together with a piece of rubber hose and two hose clamps.
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jazzsuds View Drop Down
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Joined: 21 May 2010
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Points: 96 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jazzsuds Quote  Post ReplyReply Direct Link To This Post Posted: 27 Apr 2017 at 2:09pm
Thanks for the reply but it's leaking diesel fuel from the tube  end. It looks like its a fuel release tube of some kind?
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 22328 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 27 Apr 2017 at 3:24pm
I'm assuming it's fuel return to tank from the top of the injectors and the top of the injection pump. Cut an inch off of the bad end and reinstall.
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jazzsuds View Drop Down
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Joined: 21 May 2010
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Points: 96 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jazzsuds Quote  Post ReplyReply Direct Link To This Post Posted: 27 Apr 2017 at 3:42pm
OK thanks
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Joined: 21 May 2010
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Points: 96 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jazzsuds Quote  Post ReplyReply Direct Link To This Post Posted: 19 May 2017 at 10:17am
Hmmm I don't see where the fuel return line to the tank from the injectors attaches? Any ideas?
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 22328 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 19 May 2017 at 12:09pm
Unless you've got some cobbled up plumbing, the fuel return line is at the #6 (rear) injector and goes under the cab to the top of the fuel tank.
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jazzsuds View Drop Down
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Joined: 21 May 2010
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Points: 96 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jazzsuds Quote  Post ReplyReply Direct Link To This Post Posted: 19 May 2017 at 1:03pm
OK thanks. I can't see the connection at the tank with the floor plate tight over top of the tank. Is it on the top side of the tank?
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Joined: 21 May 2010
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Points: 96 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jazzsuds Quote  Post ReplyReply Direct Link To This Post Posted: 19 May 2017 at 1:04pm
I guess I will have to remove the floor plate to get at the connection on the tank?
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SteveM C/IL View Drop Down
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Joined: 12 Sep 2009
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Points: 8755 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 19 May 2017 at 1:11pm
Originally posted by jazzsuds jazzsuds wrote:

I guess I will have to remove the floor plate to get at the connection on the tank?
whatever it takes
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MACK View Drop Down
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Joined: 17 Nov 2009
Points: 7664 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 19 May 2017 at 9:28pm
Loosen the two straps holding tank. Set a jack under tank and let it down a few inches.   MACK
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