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SW Ontario | I have an 8700 has started stalling the last few times it has been used. It doesnt run bad if it is just idling but as soon it is revved up and worked abit it will bog down and start misfiring or knocking. It then often bogs done to less then 700 rpms and will generally stall on its own but sometimes has to be shut off. It seems to be getting worse,. Used to be able work the tractor for 30 mins before it would act up and by now cant hardly drive it at all with out it acting up. Once it stalls it will generally start up again quite easy. Had the injection pump rebuilt a year ago and only have put 50 hours at the most on the tractor since. Also I just replaced the fuel filters and it didnt make any difference, Could it be bad injectors, is the lift pump on the side of the injection pump bad or could it be something else? TIA |
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| low fuel supply, check and make sure your shut off valve is open. is the top tank full . if so try running with the cap off might be pulling vac
Edited by jao 12/8/2017 13:17
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NE WI | I think you are getting air in the system. Sometimes it takes a while to get the air out when we replace filters or run it out like my dad did this spring on ours. Had to crack the bleeders on the pump and filter base a couple of times to purge the air. 8700 sucks from the bottom tank. Does it only do this when the top tank is empty? Is the hand pump lever tight on the lift pump? On our 9000 it was loose and air would get in there but the lever was ready to fall off when that happened. |
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Madison Co. Virginia | An unlikely but cheap and easy thing to check would be the fuel shutoff linkage.
Might be keeping the pump in a half-way shut off position. Disconnect it at the pump and see what happens. |
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| Dirty fuel filter, ice in the fuel filter/water separator or crap in the tank. If the fuel filter checks out OK, take the fuel cap off and blow some compressed air back through the line into the tank. |
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Mount Vernon, WA | Plugged screen in the bottom tank would be my guess. |
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near dyersville iowa | had a deere do the same thing. when i changed the inline filter the second time, i found a bunch of green goo. Some fuel treatment and it was good to go. |
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SW IA | I had a 7000 act that way once, replaced the lift pump, no more problems. |
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Ford 8700 keeps stalling.
