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AC 7060 fuel pump question
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AC 426 power View Drop Down
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Joined: 01 May 2012
Location: Ohio
Points: 514 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AC 426 power Quote  Post ReplyReply Direct Link To This Post Topic: AC 7060 fuel pump question
    Posted: 24 Jul 2012 at 7:58pm
Went to start my 7060 and it would turn over but nothing but then realized that i had not pulled the injector pump shut off out but it still would not start then i primed the pump with the plunger and it took right off but sorta had a miss for a few seconds the tractor had set for about 2 weeks without starting as well. Is my pump getting weak or? Any thoughts ? If you have a question just ask thanks
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Alan (C-IL) View Drop Down
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Joined: 07 May 2012
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Points: 117 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Alan (C-IL) Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jul 2012 at 8:24pm
Sounds more like air in the fuel resulting from a leak or bad check valve.  The stumble was probably due to some trapped air in the lines.  Do you see/smell any diesel fuel leaking?
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Points: 514 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AC 426 power Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jul 2012 at 8:27pm
Originally posted by Alan (C-IL) Alan (C-IL) wrote:

Sounds more like air in the fuel resulting from a leak or bad check valve.  The stumble was probably due to some trapped air in the lines.  Do you see/smell any diesel fuel leaking?        Yes its got some leaks on the fuel pump would that cause this?



Edited by AC 426 power - 24 Jul 2012 at 8:28pm
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Alan (C-IL) View Drop Down
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Points: 117 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Alan (C-IL) Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jul 2012 at 8:34pm
yea, diesel fuel systems don't like air and when you lose your prime, its a pain to reprime them... Sounds like you got lucky and it primed up easy.  If you have a diesel leak, it is very likely that air is getting back in.
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Joined: 01 May 2012
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Points: 514 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AC 426 power Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jul 2012 at 8:39pm
Originally posted by Alan (C-IL) Alan (C-IL) wrote:

yea, diesel fuel systems don't like air and when you lose your prime, its a pain to reprime them... Sounds like you got lucky and it primed up easy.  If you have a diesel leak, it is very likely that air is getting back in.
Alright thanks for the information
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Points: 7664 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jul 2012 at 9:48pm
Take the primer pump apart. There is 2 check valves that could have foreign materal in them not letting them seat.  MACK
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