Posted by Superturbodiesel on February 03, 2011 at 14:02:58 from (69.207.64.47):
In Reply to: 2940 won't run posted by LOU from Wi. on February 03, 2011 at 12:12:58:
Oh yeah, and you mentioned that the tractor started hard in 20 degree weather with 2 engine oil heaters AND a block heater plugged in all night?!
Something seems screwy here. That tractor should fire right up in 20 degree weather if the block heater is plugged in even for only about 4 hours - possibly less.
Most guys leave block heaters plugged in too long as it is. All that happens is that they eventually burn out and quit working, or worse, sometimes they short out and burn up the plug - which can be pretty dangerous for your barn and your tractor's well being. I don't know why, but nobody seems to use timers. I've always been a fan of having a good Heavy Duty timer for my block heaters. They turn on for several hours in the early morning hours, so that the tractor is warmed up and ready to start when I get out there, and off the rest of the time. You just set your timer based on your preferences. A minor note, but by not running your block heater all the time, it also saves on your electricity bill as well.
I wonder if your block heater is working properly (if at all). You should hear it "hissing" withing a few seconds of plugging it in. That's an indication that it is working - heating the coolant around the heating element that is (I believe) screwed into your 2940's engine block.
How many hours are on your tractor? How much blow-by is there coming out of the crankcase (valve cover) breather?
Like some of the other posters on here, I'm wondering as well about fuel gelling up as a problem, or possibly water in your fuel also. Again, that's all pretty easy to figure out, based on your fuel flow.
But, as you originally stated, you think you have good fuel flow TO the injection pump, but not out of it? Well, if that is the case, then back to my original diagnosis... Time for a new (or rebuild yours) injection pump.
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