MF1100

Diesel MF 1100-- was using it to feed my cows the other day when it died. Figured that I ran it out of fuel. By the time I got fuel it was too cold to start it. Warmer today-- got an extension cord to it to plug it in-- bled the air out on the injector pump I think. Started for about two minutes and died. Just getting air out of the bleed on the injector pump. The manual lift doesn't seem to do anything but I turned it over for a while and fuel squirted out-- then it ran for two minutes and died-- now nothing comes out of the bleed-- air. Fuel pump?

If one of the two feed pump check valves fails, it won't work right. That fuel system NEEDS a good working supply pump, or the injection pump will draw air backward through the constant bleed orifice. Make sure the filters are on correctly too, if NAPA/WIX brand make sure there's NO O ring placed in the filter top OUTER groove, that's the fuel inlet passage and must remain open.

Given the cold conditions going around, how cold was it? Could your fuel have gelled? Biodiesel? A waxed-up fuel filter may not clear with a little warm up and will need to be changed.

It's been 30 below though it wasn't super cold when it stopped running. I'll change the filter. Is it ok to put anti-gel additive in this
engine?

(quoted from post at 07:56:23 01/24/22) It's been 30 below though it wasn't super cold when it stopped running. I'll change the filter. Is it ok to put anti-gel additive in this
engine?

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Yes, I don't know of any reason not to run fuel conditioner. I'm just a few hours southwest of you and we run Howes or Power Service (white bottle) year-round. Been running those for years in all diesels, including an MF 1105 and a CAT TLB (with a PERKINS 4.236). Have used the Power service 9-1-1 on occasion to get someone going. Has it got winter blend fuel in it? If not, you may want to add some K1. I pulled a waxed up filter out of a skid tank (had carry over summer blend in it) once and kept it in a 60 degree plus shop to see if it would clear, and it still had some wax on it when I threw it away, about 3 weeks later.

Diesel starts to gel at 32 deg.

You need Power Service 911 or something like it to put in the tanks and stir it up with a stick. Change Filters and fill them with straight Howes or Power Service. If you have a torpedo heater Cover the tractor with a tarp and blow hot air in to warm everything up and thaw it out. It takes very little ice to stop one and Diesel gelling is a problem.

(quoted from post at 18:17:16 02/07/22) You need Power Service 911 or something like it to put in the tanks and stir it up with a stick. Change Filters and fill them with straight Howes or Power Service. If you have a torpedo heater Cover the tractor with a tarp and blow hot air in to warm everything up and thaw it out. It takes very little ice to stop one and Diesel gelling is a problem.

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I will guess he is up and running (his post was two weeks ago) and he doesn't need Power Service 9-1-1 at this point. If he changed filters and put a heavy dose of the Power Service white bottle, or Howes, conditioner in it he should be good. If he has just summer diesel from a skid tank he may have added some K 1 to the fuel to cut it and lower the point where the wax forms enough to plug the filter. Where he is located, summer fuel can be cut 40 to 50% with K 1 this time of year as needed. Woods operations and contractors up there will often cut winter fuel to keep going.

I am as guilty as others of saying the fuel gelled when that isn't necessarily the true case. Wax and water crystals, which are the initial problems, start forming at about 32 F and the fuel will start to look cloudy as the temperature drops. The crystals will plug filters, screens, and orifices well before full gelling (when the fuel won't pour) occurs. The temperature where the same fuel that won't pass through a fuel filter but will still come out a 1" fuel hose is the cause some arguments as to whether fuel has gelled or not. Supposedly there are some studies underway to come up with a better system to define temperatures for different states of fuel running through engine fuel systems and filters.